<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2023 Workiva-->
<!--r:3e534be9-7bfa-46b5-a526-cc3b1d9f37a4,g:17e6bd2d-c0d5-4676-a769-f39d810faa18-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.sealedair.com/role/CondensedConsolidatedStatementsofStockholdersEquity" xlink:type="simple" xlink:href="see-20230930.xsd#CondensedConsolidatedStatementsofStockholdersEquity"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/CondensedConsolidatedStatementsofStockholdersEquity" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_2b93ee9f-eb1b-42a8-af26-da55e7a103d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_2b93ee9f-eb1b-42a8-af26-da55e7a103d0" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_61e998de-d1b3-487b-86d2-3d7eced14512" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_61e998de-d1b3-487b-86d2-3d7eced14512" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_0bbc456f-9d66-46a9-8eae-1dadf413ab9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_0bbc456f-9d66-46a9-8eae-1dadf413ab9f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_f6720b64-71d8-4838-a908-6971f0c29768" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_f6720b64-71d8-4838-a908-6971f0c29768" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_b4c2cda3-099d-443a-adcc-69e2dcb9243f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_b4c2cda3-099d-443a-adcc-69e2dcb9243f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_fc776720-c04a-4d35-be64-c65382618611" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_fc776720-c04a-4d35-be64-c65382618611" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_6ae77506-14a3-4ede-a85c-51c99652d516" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax_6ae77506-14a3-4ede-a85c-51c99652d516" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_OtherComprehensiveIncomeLossDerivativesUnrealizedGainLossNetOfTax_0b78e635-7b1b-4d57-bd74-87fbbce3abb7" xlink:href="see-20230930.xsd#see_OtherComprehensiveIncomeLossDerivativesUnrealizedGainLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_see_OtherComprehensiveIncomeLossDerivativesUnrealizedGainLossNetOfTax_0b78e635-7b1b-4d57-bd74-87fbbce3abb7" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_05c1088d-7342-4c0b-9b5e-600bbef6641f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_us-gaap_NetIncomeLoss_05c1088d-7342-4c0b-9b5e-600bbef6641f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockStock_5dbb027e-1147-4dac-96eb-783b3b3ddf00" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DividendsCommonStockStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_7da0e731-b5f6-4b64-aad6-a7c21ed2f40f" xlink:to="loc_us-gaap_DividendsCommonStockStock_5dbb027e-1147-4dac-96eb-783b3b3ddf00" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_c8bf888d-f857-4a3d-972f-1fd2137719b3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_0a6542ad-b5e3-46d4-9ffb-9133dd8d96fa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_2b93ee9f-eb1b-42a8-af26-da55e7a103d0" xlink:to="loc_us-gaap_StatementTable_0a6542ad-b5e3-46d4-9ffb-9133dd8d96fa" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_417806e9-12f2-4089-8868-bb47f48b42b9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_0a6542ad-b5e3-46d4-9ffb-9133dd8d96fa" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_417806e9-12f2-4089-8868-bb47f48b42b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_417806e9-12f2-4089-8868-bb47f48b42b9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_417806e9-12f2-4089-8868-bb47f48b42b9" xlink:to="loc_us-gaap_EquityComponentDomain_417806e9-12f2-4089-8868-bb47f48b42b9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a7fb90aa-f628-4364-8584-47ade87ee751" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_417806e9-12f2-4089-8868-bb47f48b42b9" xlink:to="loc_us-gaap_EquityComponentDomain_a7fb90aa-f628-4364-8584-47ade87ee751" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_e07628d3-d914-4227-a1dd-469f3937305f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a7fb90aa-f628-4364-8584-47ade87ee751" xlink:to="loc_us-gaap_CommonStockMember_e07628d3-d914-4227-a1dd-469f3937305f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_0c405bc9-dbd9-41f5-a953-32a8842fb0ee" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a7fb90aa-f628-4364-8584-47ade87ee751" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_0c405bc9-dbd9-41f5-a953-32a8842fb0ee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_6377aec3-1cc9-4409-862a-d72d72eb59c6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a7fb90aa-f628-4364-8584-47ade87ee751" xlink:to="loc_us-gaap_RetainedEarningsMember_6377aec3-1cc9-4409-862a-d72d72eb59c6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_01ea25d9-0445-4459-bba9-434088082159" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a7fb90aa-f628-4364-8584-47ade87ee751" xlink:to="loc_us-gaap_TreasuryStockCommonMember_01ea25d9-0445-4459-bba9-434088082159" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9aeba496-3e59-45a6-b1d8-0ca0e3c3d983" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_a7fb90aa-f628-4364-8584-47ade87ee751" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_9aeba496-3e59-45a6-b1d8-0ca0e3c3d983" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="simple" xlink:href="see-20230930.xsd#CondensedConsolidatedStatementsofCashFlows"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/CondensedConsolidatedStatementsofCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_7ccf5fed-8c0c-4180-b5eb-cafc60ef7b0e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_NetIncomeLoss_7ccf5fed-8c0c-4180-b5eb-cafc60ef7b0e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_12e16a22-7b1f-48e5-bb1f-b4ff9ce418c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_12e16a22-7b1f-48e5-bb1f-b4ff9ce418c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensation_aeab79cd-93db-42ff-8556-66da598f40c6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_ShareBasedCompensation_aeab79cd-93db-42ff-8556-66da598f40c6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProfitSharingExpense_c613dfd1-a91d-4aff-a469-d850a013c8ba" xlink:href="see-20230930.xsd#see_ProfitSharingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_see_ProfitSharingExpense_c613dfd1-a91d-4aff-a469-d850a013c8ba" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_cdcd19e7-11d6-4ac1-aac8-e7b0d6099851" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_cdcd19e7-11d6-4ac1-aac8-e7b0d6099851" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProvisionForDoubtfulAccounts_4ca1486e-71d9-4459-8afc-e461363dc123" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProvisionForDoubtfulAccounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_ProvisionForDoubtfulAccounts_4ca1486e-71d9-4459-8afc-e461363dc123" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWriteDown_b58a6d8d-f410-40cd-8dfb-a53c7331ee11" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryWriteDown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_InventoryWriteDown_b58a6d8d-f410-40cd-8dfb-a53c7331ee11" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_3d190313-d351-4a02-9df6-060972beb64a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_3d190313-d351-4a02-9df6-060972beb64a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfBusiness_d66a7d62-e24c-409a-9bdc-c777ece37023" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossOnSaleOfBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_GainLossOnSaleOfBusiness_d66a7d62-e24c-409a-9bdc-c777ece37023" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_EquitySecuritiesWithoutReadilyDeterminableFairValueGainLoss_52be3e9f-13fb-41bd-8048-7374b5698a98" xlink:href="see-20230930.xsd#see_EquitySecuritiesWithoutReadilyDeterminableFairValueGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_see_EquitySecuritiesWithoutReadilyDeterminableFairValueGainLoss_52be3e9f-13fb-41bd-8048-7374b5698a98" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense_e1e5e5cd-3d48-472b-9a34-b7cf2452140d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_OtherNoncashIncomeExpense_e1e5e5cd-3d48-472b-9a34-b7cf2452140d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_79f80cb3-1124-4b77-9d37-77b3ea5b1fd5" xlink:to="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_8eb09f4d-560e-448e-bee5-eed01c58718f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsReceivable_8eb09f4d-560e-448e-bee5-eed01c58718f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_d190a2f6-5482-4028-b9f9-7c26e8677873" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_d190a2f6-5482-4028-b9f9-7c26e8677873" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_215ba8b4-5662-44aa-baac-f5d6282b2596" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_215ba8b4-5662-44aa-baac-f5d6282b2596" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_0d0bfac4-53ba-41b6-979e-913ee1e37ed0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInContractWithCustomerLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:to="loc_us-gaap_IncreaseDecreaseInContractWithCustomerLiability_0d0bfac4-53ba-41b6-979e-913ee1e37ed0" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_ba58a455-8e54-4060-b20b-f375b52eb800" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_ba58a455-8e54-4060-b20b-f375b52eb800" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_IncreaseDecreaseTaxDepositsAssets_f56b12a2-1bcc-4efe-b3f6-d815a384e4db" xlink:href="see-20230930.xsd#see_IncreaseDecreaseTaxDepositsAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:to="loc_see_IncreaseDecreaseTaxDepositsAssets_f56b12a2-1bcc-4efe-b3f6-d815a384e4db" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_3fd9da24-32ca-405b-99df-48b430469c64" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_cfdef16e-57f3-499b-9040-3f2e9bbbb1f4" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherOperatingCapitalNet_3fd9da24-32ca-405b-99df-48b430469c64" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_c5951ffb-ca4f-450a-9f25-2bf69ebf2d6a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_c5951ffb-ca4f-450a-9f25-2bf69ebf2d6a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_d9a65cec-8547-40a2-a3a0-3182fc08c05a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_d9a65cec-8547-40a2-a3a0-3182fc08c05a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_ff844bfc-b44b-42c8-a09c-7914fd807fc2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_d9a65cec-8547-40a2-a3a0-3182fc08c05a" xlink:to="loc_us-gaap_PaymentsToAcquirePropertyPlantAndEquipment_ff844bfc-b44b-42c8-a09c-7914fd807fc2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProceedsfromDivestitureofBusinessandPropertyPlantandEquipmentNet_2bb10af5-e68a-453b-ae47-e035a27d64b1" xlink:href="see-20230930.xsd#see_ProceedsfromDivestitureofBusinessandPropertyPlantandEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_d9a65cec-8547-40a2-a3a0-3182fc08c05a" xlink:to="loc_see_ProceedsfromDivestitureofBusinessandPropertyPlantandEquipmentNet_2bb10af5-e68a-453b-ae47-e035a27d64b1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_f3bc48f3-8d78-45c7-99cb-b29422e65c56" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_d9a65cec-8547-40a2-a3a0-3182fc08c05a" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_f3bc48f3-8d78-45c7-99cb-b29422e65c56" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromInvestments_c5f24773-6373-4ca2-bfc4-a78b2979dec9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForProceedsFromInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_d9a65cec-8547-40a2-a3a0-3182fc08c05a" xlink:to="loc_us-gaap_PaymentsForProceedsFromInvestments_c5f24773-6373-4ca2-bfc4-a78b2979dec9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromHedgeInvestingActivities_3234d083-4ce9-4aa0-acad-32642905a9fc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromHedgeInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_d9a65cec-8547-40a2-a3a0-3182fc08c05a" xlink:to="loc_us-gaap_ProceedsFromHedgeInvestingActivities_3234d083-4ce9-4aa0-acad-32642905a9fc" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_268c874c-9d40-49e4-9f54-2e20eccb61d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesContinuingOperationsAbstract_d9a65cec-8547-40a2-a3a0-3182fc08c05a" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_268c874c-9d40-49e4-9f54-2e20eccb61d2" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_46b6316e-33e6-4793-a367-3143b3334f2c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfShortTermDebt_46b6316e-33e6-4793-a367-3143b3334f2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_ebf70c37-9006-4783-a96b-4a61aa368c25" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_ebf70c37-9006-4783-a96b-4a61aa368c25" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_ab3e406d-ddf9-4658-aa9a-e0c8b55ae7ba" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_ab3e406d-ddf9-4658-aa9a-e0c8b55ae7ba" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_a14422a3-a2f8-4f5e-b4b7-620422a78551" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfDebtExtinguishmentCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_PaymentsOfDebtExtinguishmentCosts_a14422a3-a2f8-4f5e-b4b7-620422a78551" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_8d38dc26-9200-4298-8a49-196e9779d842" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_8d38dc26-9200-4298-8a49-196e9779d842" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9ed952c8-2bd5-429f-9730-7362e16289b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_PaymentsRelatedToTaxWithholdingForShareBasedCompensation_9ed952c8-2bd5-429f-9730-7362e16289b0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_55484310-fef3-449d-9405-1280f6d2d9a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_55484310-fef3-449d-9405-1280f6d2d9a2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments_f38291ad-de64-4bd9-a91f-c79b53045689" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_FinanceLeasePrincipalPayments_f38291ad-de64-4bd9-a91f-c79b53045689" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_898963e9-92a5-4f7f-a350-ee983bb327a9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesContinuingOperationsAbstract_3b71ea55-6537-44d4-80e4-5b118d6dbd00" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_898963e9-92a5-4f7f-a350-ee983bb327a9" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_ad17a5ca-f725-4284-ad77-ec41d1222b1a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_ad17a5ca-f725-4284-ad77-ec41d1222b1a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_616aa06a-d876-4621-b625-adac3b036a7e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_616aa06a-d876-4621-b625-adac3b036a7e" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_6f6eaf70-5869-464f-8b77-75c30870142a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalents_6f6eaf70-5869-464f-8b77-75c30870142a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_213d5b48-eb85-460a-bea7-b3a114a5f173" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_213d5b48-eb85-460a-bea7-b3a114a5f173" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_85a5167e-1aa4-47d3-941d-597d5c431902" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_85a5167e-1aa4-47d3-941d-597d5c431902" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_CashAndCashEquivalentsDisposalGroupIncludingDiscontinuedOperationsCashAndCashEquivalents_066392f7-2d8a-4c96-b5e6-c5572431bbe9" xlink:href="see-20230930.xsd#see_CashAndCashEquivalentsDisposalGroupIncludingDiscontinuedOperationsCashAndCashEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_see_CashAndCashEquivalentsDisposalGroupIncludingDiscontinuedOperationsCashAndCashEquivalents_066392f7-2d8a-4c96-b5e6-c5572431bbe9" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalents_a4106bbc-b0e0-4188-9151-bba8f7667b5a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedCashAndCashEquivalents"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_155e1b36-8ae7-439c-904d-33e3a4fc4b61" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations_155e1b36-8ae7-439c-904d-33e3a4fc4b61" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract_d6b466bb-d97e-4498-b038-6d0abe931cca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_SupplementalCashFlowInformationAbstract_d6b466bb-d97e-4498-b038-6d0abe931cca" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPaidNet_81713bb8-27a6-4e28-920f-9975cb9364eb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_d6b466bb-d97e-4498-b038-6d0abe931cca" xlink:to="loc_us-gaap_InterestPaidNet_81713bb8-27a6-4e28-920f-9975cb9364eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_b8a5be67-61ae-4fb0-95d7-7bac289daaf7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_d6b466bb-d97e-4498-b038-6d0abe931cca" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_b8a5be67-61ae-4fb0-95d7-7bac289daaf7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringPaymentsIncludingAssociatedCosts_bee9be71-78cd-4770-9794-e763e44a3b02" xlink:href="see-20230930.xsd#see_RestructuringPaymentsIncludingAssociatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract_d6b466bb-d97e-4498-b038-6d0abe931cca" xlink:to="loc_see_RestructuringPaymentsIncludingAssociatedCosts_bee9be71-78cd-4770-9794-e763e44a3b02" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_760110dd-f7ae-413e-bffd-6dd67c895e01" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_760110dd-f7ae-413e-bffd-6dd67c895e01" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssued1_9b6e6a71-4162-4d41-91c9-d9a53a511c0a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssued1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherNoncashInvestingAndFinancingItemsAbstract_760110dd-f7ae-413e-bffd-6dd67c895e01" xlink:to="loc_us-gaap_StockIssued1_9b6e6a71-4162-4d41-91c9-d9a53a511c0a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_ecf47c0c-7193-42d7-a3ec-28c5c3fa5312" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_ff787505-e4f3-4f42-b977-15ece476c6b0" xlink:to="loc_us-gaap_StatementTable_ecf47c0c-7193-42d7-a3ec-28c5c3fa5312" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_195eccc9-18f8-44c2-97f0-09f4eb3f8f84" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_ecf47c0c-7193-42d7-a3ec-28c5c3fa5312" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_195eccc9-18f8-44c2-97f0-09f4eb3f8f84" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_195eccc9-18f8-44c2-97f0-09f4eb3f8f84_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_195eccc9-18f8-44c2-97f0-09f4eb3f8f84" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_195eccc9-18f8-44c2-97f0-09f4eb3f8f84_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_8c3c642c-2f02-4803-acdb-5d7ac434d39e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_195eccc9-18f8-44c2-97f0-09f4eb3f8f84" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_8c3c642c-2f02-4803-acdb-5d7ac434d39e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_5182c92c-4f9e-4c50-9c61-49b0aed55d1e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_8c3c642c-2f02-4803-acdb-5d7ac434d39e" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_5182c92c-4f9e-4c50-9c61-49b0aed55d1e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_ad9b1cb8-fe51-4cbb-92c0-d43e44ea2512" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_8c3c642c-2f02-4803-acdb-5d7ac434d39e" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_ad9b1cb8-fe51-4cbb-92c0-d43e44ea2512" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/RecentlyAdoptedandIssuedAccountingStandardsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#RecentlyAdoptedandIssuedAccountingStandardsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/RecentlyAdoptedandIssuedAccountingStandardsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_see_AccountsPayableLineItems_8b79845a-5391-449b-bbce-e8c37f724161" xlink:href="see-20230930.xsd#see_AccountsPayableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplierFinanceProgramPaymentTimingPeriod_d45e09db-311b-47a8-ba6e-2bc9179a527c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplierFinanceProgramPaymentTimingPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AccountsPayableLineItems_8b79845a-5391-449b-bbce-e8c37f724161" xlink:to="loc_us-gaap_SupplierFinanceProgramPaymentTimingPeriod_d45e09db-311b-47a8-ba6e-2bc9179a527c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_31c3c41b-62c5-44db-8220-0af688750df6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AccountsPayableLineItems_8b79845a-5391-449b-bbce-e8c37f724161" xlink:to="loc_us-gaap_AccountsPayableCurrent_31c3c41b-62c5-44db-8220-0af688750df6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AccountsPayableTable_49c31857-98a9-4fd4-9184-71b5d12ad22e" xlink:href="see-20230930.xsd#see_AccountsPayableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_see_AccountsPayableLineItems_8b79845a-5391-449b-bbce-e8c37f724161" xlink:to="loc_see_AccountsPayableTable_49c31857-98a9-4fd4-9184-71b5d12ad22e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_f8b8b9ef-4799-4f79-ab54-73b0e51fb62c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_see_AccountsPayableTable_49c31857-98a9-4fd4-9184-71b5d12ad22e" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_f8b8b9ef-4799-4f79-ab54-73b0e51fb62c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_f8b8b9ef-4799-4f79-ab54-73b0e51fb62c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_f8b8b9ef-4799-4f79-ab54-73b0e51fb62c" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_f8b8b9ef-4799-4f79-ab54-73b0e51fb62c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_46578f30-e3d8-4890-9492-015f4ad23b06" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_f8b8b9ef-4799-4f79-ab54-73b0e51fb62c" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_46578f30-e3d8-4890-9492-015f4ad23b06" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_SupplyChainFinancingProgramParticipantsMember_04a3bd28-4bc8-45b6-9836-dcb575138650" xlink:href="see-20230930.xsd#see_SupplyChainFinancingProgramParticipantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_46578f30-e3d8-4890-9492-015f4ad23b06" xlink:to="loc_see_SupplyChainFinancingProgramParticipantsMember_04a3bd28-4bc8-45b6-9836-dcb575138650" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/RevenueRecognitionContractswithCustomersRevenuefromContractWithCustomersSummarizedbySegmentDetails" xlink:type="simple" xlink:href="see-20230930.xsd#RevenueRecognitionContractswithCustomersRevenuefromContractWithCustomersSummarizedbySegmentDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/RevenueRecognitionContractswithCustomersRevenuefromContractWithCustomersSummarizedbySegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_c8779399-76db-4c32-b8e6-208228213431" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_60901386-efb5-464f-bb86-fc4c1290deeb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_c8779399-76db-4c32-b8e6-208228213431" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_60901386-efb5-464f-bb86-fc4c1290deeb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesTypeLeaseRevenue_dfc93127-41ca-4924-9378-31872b8b7300" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesTypeLeaseRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_c8779399-76db-4c32-b8e6-208228213431" xlink:to="loc_us-gaap_SalesTypeLeaseRevenue_dfc93127-41ca-4924-9378-31872b8b7300" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_fff5d6f2-adf8-4ac0-af97-aa0391297a1f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_c8779399-76db-4c32-b8e6-208228213431" xlink:to="loc_us-gaap_Revenues_fff5d6f2-adf8-4ac0-af97-aa0391297a1f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_d9264281-d755-4835-8391-b2cbd576bdd1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EntityWideInformationRevenueFromExternalCustomerLineItems_c8779399-76db-4c32-b8e6-208228213431" xlink:to="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_d9264281-d755-4835-8391-b2cbd576bdd1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_80fc2b6a-1e7a-4161-95a6-820706b16124" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_d9264281-d755-4835-8391-b2cbd576bdd1" xlink:to="loc_srt_StatementGeographicalAxis_80fc2b6a-1e7a-4161-95a6-820706b16124" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_80fc2b6a-1e7a-4161-95a6-820706b16124_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_80fc2b6a-1e7a-4161-95a6-820706b16124" xlink:to="loc_srt_SegmentGeographicalDomain_80fc2b6a-1e7a-4161-95a6-820706b16124_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_4f008d99-925d-4762-ad5f-510ef4186964" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_80fc2b6a-1e7a-4161-95a6-820706b16124" xlink:to="loc_srt_SegmentGeographicalDomain_4f008d99-925d-4762-ad5f-510ef4186964" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AmericasMember_1d8ac8c7-29f1-45b8-9493-52f7b963c9da" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_AmericasMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_4f008d99-925d-4762-ad5f-510ef4186964" xlink:to="loc_srt_AmericasMember_1d8ac8c7-29f1-45b8-9493-52f7b963c9da" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EMEAMember_5308902c-dd84-41d5-87c3-a7d4a85efad3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EMEAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_4f008d99-925d-4762-ad5f-510ef4186964" xlink:to="loc_us-gaap_EMEAMember_5308902c-dd84-41d5-87c3-a7d4a85efad3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_AsiaPacificMember_9c3dc2da-a0e7-448e-b056-e8dca6592f64" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_AsiaPacificMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_4f008d99-925d-4762-ad5f-510ef4186964" xlink:to="loc_srt_AsiaPacificMember_9c3dc2da-a0e7-448e-b056-e8dca6592f64" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_fbc9330b-d1c0-4ae4-af99-74dc405c11ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEntityWideInformationRevenueFromExternalCustomersByProductsAndServicesTable_d9264281-d755-4835-8391-b2cbd576bdd1" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_fbc9330b-d1c0-4ae4-af99-74dc405c11ad" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_fbc9330b-d1c0-4ae4-af99-74dc405c11ad_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_fbc9330b-d1c0-4ae4-af99-74dc405c11ad" xlink:to="loc_us-gaap_SegmentDomain_fbc9330b-d1c0-4ae4-af99-74dc405c11ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_a113a934-8ea2-48fe-8349-802e858698aa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_fbc9330b-d1c0-4ae4-af99-74dc405c11ad" xlink:to="loc_us-gaap_SegmentDomain_a113a934-8ea2-48fe-8349-802e858698aa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoodCareMember_5d9e46cd-9810-4297-bffb-fc60449a7244" xlink:href="see-20230930.xsd#see_FoodCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a113a934-8ea2-48fe-8349-802e858698aa" xlink:to="loc_see_FoodCareMember_5d9e46cd-9810-4297-bffb-fc60449a7244" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProtectiveMember_44345f03-aafe-4422-ae73-358d50d33a7f" xlink:href="see-20230930.xsd#see_ProtectiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_a113a934-8ea2-48fe-8349-802e858698aa" xlink:to="loc_see_ProtectiveMember_44345f03-aafe-4422-ae73-358d50d33a7f" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/RevenueRecognitionContractswithCustomersRemainingPerformanceObligationandTotalTransactionPriceDetails" xlink:type="simple" xlink:href="see-20230930.xsd#RevenueRecognitionContractswithCustomersRemainingPerformanceObligationandTotalTransactionPriceDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/RevenueRecognitionContractswithCustomersRemainingPerformanceObligationandTotalTransactionPriceDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_791a09ca-2744-4abe-a3f2-d0f634d63bc3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_ed9ce667-8b47-4547-9cb3-b2132a089aac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_791a09ca-2744-4abe-a3f2-d0f634d63bc3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_ed9ce667-8b47-4547-9cb3-b2132a089aac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_295e0f2d-762f-45be-b9af-a5f9c2b27154" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_791a09ca-2744-4abe-a3f2-d0f634d63bc3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_295e0f2d-762f-45be-b9af-a5f9c2b27154" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_dadc597e-8411-4c40-97f0-99725d7ffc3e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_791a09ca-2744-4abe-a3f2-d0f634d63bc3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_dadc597e-8411-4c40-97f0-99725d7ffc3e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_283d365f-3fac-4eec-85b4-496b611a7259" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_dadc597e-8411-4c40-97f0-99725d7ffc3e" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_283d365f-3fac-4eec-85b4-496b611a7259" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/RevenueRecognitionContractswithCustomersRemainingPerformanceObligationandTotalTransactionPriceDetails_1" xlink:type="simple" xlink:href="see-20230930.xsd#RevenueRecognitionContractswithCustomersRemainingPerformanceObligationandTotalTransactionPriceDetails_1"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/RevenueRecognitionContractswithCustomersRemainingPerformanceObligationandTotalTransactionPriceDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_791a09ca-2744-4abe-a3f2-d0f634d63bc3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_ed9ce667-8b47-4547-9cb3-b2132a089aac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_791a09ca-2744-4abe-a3f2-d0f634d63bc3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_ed9ce667-8b47-4547-9cb3-b2132a089aac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_295e0f2d-762f-45be-b9af-a5f9c2b27154" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_791a09ca-2744-4abe-a3f2-d0f634d63bc3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_295e0f2d-762f-45be-b9af-a5f9c2b27154" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_dadc597e-8411-4c40-97f0-99725d7ffc3e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_791a09ca-2744-4abe-a3f2-d0f634d63bc3" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_dadc597e-8411-4c40-97f0-99725d7ffc3e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/AcquisitionsAcquisitionsNarrativeDetails" xlink:type="simple" xlink:href="see-20230930.xsd#AcquisitionsAcquisitionsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/AcquisitionsAcquisitionsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_75d3c7be-ae79-4653-9597-1ce269bc3650" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_44cacfdb-6980-4bc7-966b-01ea1677d398" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_75d3c7be-ae79-4653-9597-1ce269bc3650" xlink:to="loc_us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired_44cacfdb-6980-4bc7-966b-01ea1677d398" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_d692d98a-4032-4bc3-8337-a8eba17912af" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_75d3c7be-ae79-4653-9597-1ce269bc3650" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_d692d98a-4032-4bc3-8337-a8eba17912af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_6743fb00-7ac6-4163-b1ef-f22c071216c4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_75d3c7be-ae79-4653-9597-1ce269bc3650" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_6743fb00-7ac6-4163-b1ef-f22c071216c4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_1dc1f97c-465b-4de2-8707-e6f809e5ce56" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_75d3c7be-ae79-4653-9597-1ce269bc3650" xlink:to="loc_us-gaap_Goodwill_1dc1f97c-465b-4de2-8707-e6f809e5ce56" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_bfcf3031-4346-4356-ad95-971a7cb3ae8b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_75d3c7be-ae79-4653-9597-1ce269bc3650" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_bfcf3031-4346-4356-ad95-971a7cb3ae8b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_5dd85b12-7b17-45cc-8173-41ca9c204a0d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_75d3c7be-ae79-4653-9597-1ce269bc3650" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_5dd85b12-7b17-45cc-8173-41ca9c204a0d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2559e61f-ca83-4aa4-9956-f8ff3b7982d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_75d3c7be-ae79-4653-9597-1ce269bc3650" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2559e61f-ca83-4aa4-9956-f8ff3b7982d2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_d2698223-411c-45be-866e-0c0c63db34d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2559e61f-ca83-4aa4-9956-f8ff3b7982d2" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_d2698223-411c-45be-866e-0c0c63db34d5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_d2698223-411c-45be-866e-0c0c63db34d5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_d2698223-411c-45be-866e-0c0c63db34d5" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_d2698223-411c-45be-866e-0c0c63db34d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_03c11183-1949-4da6-8a51-2d1c206a7470" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_d2698223-411c-45be-866e-0c0c63db34d5" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_03c11183-1949-4da6-8a51-2d1c206a7470" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_LiquiboxMember_0ae6e33e-f1e4-4cfd-8136-d84d382f8aad" xlink:href="see-20230930.xsd#see_LiquiboxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_03c11183-1949-4da6-8a51-2d1c206a7470" xlink:to="loc_see_LiquiboxMember_0ae6e33e-f1e4-4cfd-8136-d84d382f8aad" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoxpakFlexiblesLtdMember_1f609d50-52ce-4c8a-80b7-e6ae9142caf0" xlink:href="see-20230930.xsd#see_FoxpakFlexiblesLtdMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_03c11183-1949-4da6-8a51-2d1c206a7470" xlink:to="loc_see_FoxpakFlexiblesLtdMember_1f609d50-52ce-4c8a-80b7-e6ae9142caf0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember_154419ce-d3a6-4380-a579-6d1db1dd4a3d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_03c11183-1949-4da6-8a51-2d1c206a7470" xlink:to="loc_us-gaap_SeriesOfIndividuallyImmaterialBusinessAcquisitionsMember_154419ce-d3a6-4380-a579-6d1db1dd4a3d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_400a34d9-3b48-4fdc-81c5-2cb90f2ef5d6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2559e61f-ca83-4aa4-9956-f8ff3b7982d2" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_400a34d9-3b48-4fdc-81c5-2cb90f2ef5d6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_400a34d9-3b48-4fdc-81c5-2cb90f2ef5d6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_400a34d9-3b48-4fdc-81c5-2cb90f2ef5d6" xlink:to="loc_us-gaap_SegmentDomain_400a34d9-3b48-4fdc-81c5-2cb90f2ef5d6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_7cbdb9be-c105-4aa6-903f-0c8eaba8e2cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_400a34d9-3b48-4fdc-81c5-2cb90f2ef5d6" xlink:to="loc_us-gaap_SegmentDomain_7cbdb9be-c105-4aa6-903f-0c8eaba8e2cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoodCareMember_37b5c248-f20d-470f-bd55-5ebbcaa1072b" xlink:href="see-20230930.xsd#see_FoodCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_7cbdb9be-c105-4aa6-903f-0c8eaba8e2cd" xlink:to="loc_see_FoodCareMember_37b5c248-f20d-470f-bd55-5ebbcaa1072b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/AcquisitionsSummaryofPreliminaryAllocationofPurchasePricetoAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="simple" xlink:href="see-20230930.xsd#AcquisitionsSummaryofPreliminaryAllocationofPurchasePricetoAssetsAcquiredandLiabilitiesAssumedDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/AcquisitionsSummaryofPreliminaryAllocationofPurchasePricetoAssetsAcquiredandLiabilitiesAssumedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_cfe46af9-253a-47ba-990b-441ff1882181" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_08bd04d8-2cef-4a66-80e2-2e5450f767d0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_cfe46af9-253a-47ba-990b-441ff1882181" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_08bd04d8-2cef-4a66-80e2-2e5450f767d0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_cfe46af9-253a-47ba-990b-441ff1882181" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_559ab1f0-228b-4d8c-a1ee-f6f47369ed8d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_559ab1f0-228b-4d8c-a1ee-f6f47369ed8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_f0a00008-8a8a-4638-ad46-0fdd8c48ecde" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_f0a00008-8a8a-4638-ad46-0fdd8c48ecde" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_8fbd6fcc-24ef-4bac-ab46-b5461b038b70" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_8fbd6fcc-24ef-4bac-ab46-b5461b038b70" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_f519b6c0-172e-4598-ae01-a49ac5d5897a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_f519b6c0-172e-4598-ae01-a49ac5d5897a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_2cbbaa5f-8272-4c02-b281-8b3aaa54abf7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_2cbbaa5f-8272-4c02-b281-8b3aaa54abf7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_eebd4f91-31ab-438b-a970-fd59a9f46831" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_eebd4f91-31ab-438b-a970-fd59a9f46831" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAsset_c1386e6a-52b0-403b-9d6f-08d868851388" xlink:href="see-20230930.xsd#see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAsset_c1386e6a-52b0-403b-9d6f-08d868851388" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_a4148926-74b8-4a35-add6-49d758c70340" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets_a4148926-74b8-4a35-add6-49d758c70340" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_4d60a0ce-a03c-447f-8e36-151fb5312f98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAbstract_48049b6e-3c7c-406c-aa78-3501efcba4cb" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_4d60a0ce-a03c-447f-8e36-151fb5312f98" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_cfe46af9-253a-47ba-990b-441ff1882181" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_271624fe-d3d1-4420-a061-b2ab16555a9c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_271624fe-d3d1-4420-a061-b2ab16555a9c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt_79bfaf70-a3e0-47f1-9b06-7fccb88d6f77" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesLongTermDebt_79bfaf70-a3e0-47f1-9b06-7fccb88d6f77" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilities_6c06c95c-3048-49f1-86c5-f104a59c0684" xlink:href="see-20230930.xsd#see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOperatingLeaseLiabilities_6c06c95c-3048-49f1-86c5-f104a59c0684" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_b00b143f-1067-4869-ba4c-1df74ef57f86" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesOther_b00b143f-1067-4869-ba4c-1df74ef57f86" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt_d6ea0d9c-3930-4a8e-ac5a-63bea58591a5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt_d6ea0d9c-3930-4a8e-ac5a-63bea58591a5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOperatingLeaseLiabilities_e4fd7af7-32b7-468e-823c-9a253837a525" xlink:href="see-20230930.xsd#see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOperatingLeaseLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_see_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOperatingLeaseLiabilities_e4fd7af7-32b7-468e-823c-9a253837a525" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_a855adbd-6e94-44f7-8147-d78e485339e7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxLiabilities_a855adbd-6e94-44f7-8147-d78e485339e7" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_45bab1b6-0227-485e-b301-86fb1921c1b9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther_45bab1b6-0227-485e-b301-86fb1921c1b9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_3b833ae1-cb40-4ff1-befa-3267b2997f7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_3b833ae1-cb40-4ff1-befa-3267b2997f7d" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_a2413601-2672-4064-aedf-89b4d21afee1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_a2413601-2672-4064-aedf-89b4d21afee1" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_08b50653-d7db-4f99-b2fd-c91c498ff319" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilitiesAbstract_b2186252-ad55-4bd8-bd3b-0eede4ef732c" xlink:to="loc_us-gaap_Goodwill_08b50653-d7db-4f99-b2fd-c91c498ff319" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_cfe46af9-253a-47ba-990b-441ff1882181" xlink:to="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsReceivables_a7e534ef-13d4-42ad-b42b-f61a6985051d" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsReceivables"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsReceivables_a7e534ef-13d4-42ad-b42b-f61a6985051d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventory_c39dee53-3b2e-479e-81ac-40e490d439aa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventory"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentInventory_c39dee53-3b2e-479e-81ac-40e490d439aa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPrepaidExpenseAndOtherCurrentAssets_a7a01c4d-ab67-41ef-9407-afb28074d362" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPrepaidExpenseAndOtherCurrentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentPrepaidExpenseAndOtherCurrentAssets_a7a01c4d-ab67-41ef-9407-afb28074d362" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentIntangibles_23bfad7f-dc28-4eba-b99b-3a6b6bcd22f2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentIntangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentIntangibles_23bfad7f-dc28-4eba-b99b-3a6b6bcd22f2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets_3b438cf7-48b4-409c-a307-9cab48cce2a6" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAssets_3b438cf7-48b4-409c-a307-9cab48cce2a6" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable_edb5c82a-396d-4503-ab53-bac1b83bcf4d" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentAccountsPayable_edb5c82a-396d-4503-ab53-bac1b83bcf4d" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities_b4e2ed1b-4345-4bf8-bf95-614b2583ddff" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherCurrentLiabilities_b4e2ed1b-4345-4bf8-bf95-614b2583ddff" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNoncurrentLiabilities_0cfc3993-91da-45f8-84c2-b838e70b9e4a" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNoncurrentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentOtherNoncurrentLiabilities_0cfc3993-91da-45f8-84c2-b838e70b9e4a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentLiabilities_824ae997-de2e-4c92-a461-5326bdb31db8" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentLiabilities_824ae997-de2e-4c92-a461-5326bdb31db8" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAcquired_1602de25-5229-482e-92b9-b9a88437bf86" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentNetAssetsAcquired_1602de25-5229-482e-92b9-b9a88437bf86" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentGoodwill_2db8a4e6-c62c-4e54-b03d-f5731b07cd89" xlink:href="see-20230930.xsd#see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentsAbstract_074c19d5-0731-4bef-ab91-08eecd9e74fc" xlink:to="loc_see_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentGoodwill_2db8a4e6-c62c-4e54-b03d-f5731b07cd89" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_da5d890b-d4e9-4082-bd0c-a0599872e3a9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_cfe46af9-253a-47ba-990b-441ff1882181" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_da5d890b-d4e9-4082-bd0c-a0599872e3a9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_61e4aaeb-f672-4a40-9e89-0bd33bd484e1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_da5d890b-d4e9-4082-bd0c-a0599872e3a9" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_61e4aaeb-f672-4a40-9e89-0bd33bd484e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_61e4aaeb-f672-4a40-9e89-0bd33bd484e1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_61e4aaeb-f672-4a40-9e89-0bd33bd484e1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_61e4aaeb-f672-4a40-9e89-0bd33bd484e1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8a0acfdf-a6d3-4c67-a839-bebd038eb47c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_61e4aaeb-f672-4a40-9e89-0bd33bd484e1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8a0acfdf-a6d3-4c67-a839-bebd038eb47c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_LiquiboxMember_81012776-f23f-44e2-862d-6d02bfa05e7e" xlink:href="see-20230930.xsd#see_LiquiboxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8a0acfdf-a6d3-4c67-a839-bebd038eb47c" xlink:to="loc_see_LiquiboxMember_81012776-f23f-44e2-862d-6d02bfa05e7e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/AcquisitionsScheduleofIntangibleAssetsandUsefulLivesDetails" xlink:type="simple" xlink:href="see-20230930.xsd#AcquisitionsScheduleofIntangibleAssetsandUsefulLivesDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/AcquisitionsScheduleofIntangibleAssetsandUsefulLivesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_ce103eb7-f77d-483e-82d7-43204bf83ddc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_70d6c500-7655-4acc-84ab-c2812ededfd7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_ce103eb7-f77d-483e-82d7-43204bf83ddc" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles_70d6c500-7655-4acc-84ab-c2812ededfd7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_9be663bb-1b5b-4cdd-91e9-df4258c8b5a4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_ce103eb7-f77d-483e-82d7-43204bf83ddc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetUsefulLife_9be663bb-1b5b-4cdd-91e9-df4258c8b5a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_7c6de24b-8ecf-4f76-98f5-e49833eeeba5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_ce103eb7-f77d-483e-82d7-43204bf83ddc" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_7c6de24b-8ecf-4f76-98f5-e49833eeeba5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_cb7d7fef-146d-4fb4-abad-2a05c482cb36" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_7c6de24b-8ecf-4f76-98f5-e49833eeeba5" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_cb7d7fef-146d-4fb4-abad-2a05c482cb36" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_cb7d7fef-146d-4fb4-abad-2a05c482cb36_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_cb7d7fef-146d-4fb4-abad-2a05c482cb36" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_cb7d7fef-146d-4fb4-abad-2a05c482cb36_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_802d379c-9980-4ea5-a503-4f75ac95fe1a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_cb7d7fef-146d-4fb4-abad-2a05c482cb36" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_802d379c-9980-4ea5-a503-4f75ac95fe1a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_LiquiboxMember_91948bcf-3bfa-42db-a05d-e53aea8be1dc" xlink:href="see-20230930.xsd#see_LiquiboxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_802d379c-9980-4ea5-a503-4f75ac95fe1a" xlink:to="loc_see_LiquiboxMember_91948bcf-3bfa-42db-a05d-e53aea8be1dc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6b1775ff-be73-46f9-ba96-6edaf8caaa80" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsAcquiredAsPartOfBusinessCombinationTable_7c6de24b-8ecf-4f76-98f5-e49833eeeba5" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6b1775ff-be73-46f9-ba96-6edaf8caaa80" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6b1775ff-be73-46f9-ba96-6edaf8caaa80_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6b1775ff-be73-46f9-ba96-6edaf8caaa80" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6b1775ff-be73-46f9-ba96-6edaf8caaa80_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0fce61d0-f95c-4a21-a06f-8fbf52447979" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6b1775ff-be73-46f9-ba96-6edaf8caaa80" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0fce61d0-f95c-4a21-a06f-8fbf52447979" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_e34fc28e-95c0-4c3a-aa55-e0006f2cf384" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0fce61d0-f95c-4a21-a06f-8fbf52447979" xlink:to="loc_us-gaap_CustomerRelationshipsMember_e34fc28e-95c0-4c3a-aa55-e0006f2cf384" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_2e22b69a-45f9-449d-aa03-54735cc94956" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TrademarksAndTradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0fce61d0-f95c-4a21-a06f-8fbf52447979" xlink:to="loc_us-gaap_TrademarksAndTradeNamesMember_2e22b69a-45f9-449d-aa03-54735cc94956" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_333885fd-d555-434f-b159-20f3cd0a1894" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0fce61d0-f95c-4a21-a06f-8fbf52447979" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_333885fd-d555-434f-b159-20f3cd0a1894" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_2b50cdde-0c4e-4bb2-b47a-48b936510c49" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TechnologyBasedIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0fce61d0-f95c-4a21-a06f-8fbf52447979" xlink:to="loc_us-gaap_TechnologyBasedIntangibleAssetsMember_2b50cdde-0c4e-4bb2-b47a-48b936510c49" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/AcquisitionsNetSalesandLossSinceAcquisitionDetails" xlink:type="simple" xlink:href="see-20230930.xsd#AcquisitionsNetSalesandLossSinceAcquisitionDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/AcquisitionsNetSalesandLossSinceAcquisitionDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_106697df-37f8-41da-bb3e-5a76f51bc12a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_c1bba5d6-17a4-48d1-b327-e48efa252e6b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_106697df-37f8-41da-bb3e-5a76f51bc12a" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual_c1bba5d6-17a4-48d1-b327-e48efa252e6b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_0050250f-54f4-4e82-b3eb-e062641617ed" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_106697df-37f8-41da-bb3e-5a76f51bc12a" xlink:to="loc_us-gaap_BusinessCombinationProFormaInformationEarningsOrLossOfAcquireeSinceAcquisitionDateActual_0050250f-54f4-4e82-b3eb-e062641617ed" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_7c3a4f2d-f80c-42d6-8511-70e66ae9e66d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_106697df-37f8-41da-bb3e-5a76f51bc12a" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_7c3a4f2d-f80c-42d6-8511-70e66ae9e66d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_7ed9d2ae-1221-4a97-938f-b4ac77c38b23" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_7c3a4f2d-f80c-42d6-8511-70e66ae9e66d" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_7ed9d2ae-1221-4a97-938f-b4ac77c38b23" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_7ed9d2ae-1221-4a97-938f-b4ac77c38b23_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_7ed9d2ae-1221-4a97-938f-b4ac77c38b23" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_7ed9d2ae-1221-4a97-938f-b4ac77c38b23_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3a84d9c7-bd5f-44cc-b45e-63a9360ad258" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_7ed9d2ae-1221-4a97-938f-b4ac77c38b23" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3a84d9c7-bd5f-44cc-b45e-63a9360ad258" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_LiquiboxMember_27937d73-a16b-4626-805f-20d15f6f1fc6" xlink:href="see-20230930.xsd#see_LiquiboxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3a84d9c7-bd5f-44cc-b45e-63a9360ad258" xlink:to="loc_see_LiquiboxMember_27937d73-a16b-4626-805f-20d15f6f1fc6" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/AcquisitionsProFormaInformationDetails" xlink:type="simple" xlink:href="see-20230930.xsd#AcquisitionsProFormaInformationDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/AcquisitionsProFormaInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_05280756-c5ff-4f84-9d40-25cab9cd3e52" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_877f9fc6-c2c2-471a-a155-8d7c79eddd06" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_05280756-c5ff-4f84-9d40-25cab9cd3e52" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_877f9fc6-c2c2-471a-a155-8d7c79eddd06" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_f9518fb5-d857-49d1-97eb-a62fdb79fc2a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_05280756-c5ff-4f84-9d40-25cab9cd3e52" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_f9518fb5-d857-49d1-97eb-a62fdb79fc2a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_751d50c6-1d52-4e90-b702-98e503aaa727" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_05280756-c5ff-4f84-9d40-25cab9cd3e52" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_751d50c6-1d52-4e90-b702-98e503aaa727" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_4999bf0f-9ea8-4d4b-b259-e9967781b619" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_751d50c6-1d52-4e90-b702-98e503aaa727" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_4999bf0f-9ea8-4d4b-b259-e9967781b619" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_4999bf0f-9ea8-4d4b-b259-e9967781b619_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_4999bf0f-9ea8-4d4b-b259-e9967781b619" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_4999bf0f-9ea8-4d4b-b259-e9967781b619_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_329c35ad-1811-4194-980a-bfb169572cd9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_4999bf0f-9ea8-4d4b-b259-e9967781b619" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_329c35ad-1811-4194-980a-bfb169572cd9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_LiquiboxMember_ed9a7a1b-b37a-4bd4-b910-e014012a1498" xlink:href="see-20230930.xsd#see_LiquiboxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_329c35ad-1811-4194-980a-bfb169572cd9" xlink:to="loc_see_LiquiboxMember_ed9a7a1b-b37a-4bd4-b910-e014012a1498" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/SegmentsNetSalesandAdjustedEBITDAbyReportableSegmentDetails" xlink:type="simple" xlink:href="see-20230930.xsd#SegmentsNetSalesandAdjustedEBITDAbyReportableSegmentDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/SegmentsNetSalesandAdjustedEBITDAbyReportableSegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_c49aa3bc-aabe-4ebf-b47e-f316946b1027" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_61715f37-7af4-46b0-812b-34143e720f20" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_c49aa3bc-aabe-4ebf-b47e-f316946b1027" xlink:to="loc_us-gaap_Revenues_61715f37-7af4-46b0-812b-34143e720f20" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_12d1fbce-1735-40d8-b832-ab9f3943e8f6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_c49aa3bc-aabe-4ebf-b47e-f316946b1027" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_12d1fbce-1735-40d8-b832-ab9f3943e8f6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_bc863a7f-0c84-4260-a36c-c0d5081291af" xlink:href="see-20230930.xsd#see_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_c49aa3bc-aabe-4ebf-b47e-f316946b1027" xlink:to="loc_see_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_bc863a7f-0c84-4260-a36c-c0d5081291af" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PercentageOfAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMargin_15fae8a5-e8ae-49d0-b759-bb25091e8ea3" xlink:href="see-20230930.xsd#see_PercentageOfAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMargin"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_c49aa3bc-aabe-4ebf-b47e-f316946b1027" xlink:to="loc_see_PercentageOfAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortizationMargin_15fae8a5-e8ae-49d0-b759-bb25091e8ea3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_46f4ddaf-7d0f-4f52-b87a-2ee0f638e0bf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_c49aa3bc-aabe-4ebf-b47e-f316946b1027" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_46f4ddaf-7d0f-4f52-b87a-2ee0f638e0bf" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_cbd62012-8b06-47df-98ee-d2079891d35d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_46f4ddaf-7d0f-4f52-b87a-2ee0f638e0bf" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_cbd62012-8b06-47df-98ee-d2079891d35d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_cbd62012-8b06-47df-98ee-d2079891d35d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_cbd62012-8b06-47df-98ee-d2079891d35d" xlink:to="loc_us-gaap_SegmentDomain_cbd62012-8b06-47df-98ee-d2079891d35d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_aa3be5a0-c5c1-450c-b29b-1e776f347b9d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_cbd62012-8b06-47df-98ee-d2079891d35d" xlink:to="loc_us-gaap_SegmentDomain_aa3be5a0-c5c1-450c-b29b-1e776f347b9d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoodCareMember_32f5fbac-622e-4a6c-b905-c7dd66d4c077" xlink:href="see-20230930.xsd#see_FoodCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_aa3be5a0-c5c1-450c-b29b-1e776f347b9d" xlink:to="loc_see_FoodCareMember_32f5fbac-622e-4a6c-b905-c7dd66d4c077" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProtectiveMember_354ecbed-21e2-4254-9500-a59c297b25c8" xlink:href="see-20230930.xsd#see_ProtectiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_aa3be5a0-c5c1-450c-b29b-1e776f347b9d" xlink:to="loc_see_ProtectiveMember_354ecbed-21e2-4254-9500-a59c297b25c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_478f9a79-5d1b-4f5c-bebd-6b3e87fadc3a" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_46f4ddaf-7d0f-4f52-b87a-2ee0f638e0bf" xlink:to="loc_srt_ConsolidationItemsAxis_478f9a79-5d1b-4f5c-bebd-6b3e87fadc3a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_478f9a79-5d1b-4f5c-bebd-6b3e87fadc3a_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_478f9a79-5d1b-4f5c-bebd-6b3e87fadc3a" xlink:to="loc_srt_ConsolidationItemsDomain_478f9a79-5d1b-4f5c-bebd-6b3e87fadc3a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_dc03e3fd-6abb-4d20-93de-9420e506a30f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_478f9a79-5d1b-4f5c-bebd-6b3e87fadc3a" xlink:to="loc_srt_ConsolidationItemsDomain_dc03e3fd-6abb-4d20-93de-9420e506a30f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_9e3b4688-7afc-4cae-8ec5-a3d2c518edf3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_dc03e3fd-6abb-4d20-93de-9420e506a30f" xlink:to="loc_us-gaap_OperatingSegmentsMember_9e3b4688-7afc-4cae-8ec5-a3d2c518edf3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_0ed4b303-530a-46db-88fb-89508966baf1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_46f4ddaf-7d0f-4f52-b87a-2ee0f638e0bf" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_0ed4b303-530a-46db-88fb-89508966baf1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_0ed4b303-530a-46db-88fb-89508966baf1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_0ed4b303-530a-46db-88fb-89508966baf1" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_0ed4b303-530a-46db-88fb-89508966baf1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_528dc458-461f-4031-8321-071a6e30266d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_0ed4b303-530a-46db-88fb-89508966baf1" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_528dc458-461f-4031-8321-071a6e30266d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductConcentrationRiskMember_a72f0285-19e7-4d8e-bfdd-3da8aaf9fc13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProductConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_528dc458-461f-4031-8321-071a6e30266d" xlink:to="loc_us-gaap_ProductConcentrationRiskMember_a72f0285-19e7-4d8e-bfdd-3da8aaf9fc13" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_cddf41c5-9ac0-4761-b4af-0bdbdfcd3d90" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_46f4ddaf-7d0f-4f52-b87a-2ee0f638e0bf" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_cddf41c5-9ac0-4761-b4af-0bdbdfcd3d90" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_cddf41c5-9ac0-4761-b4af-0bdbdfcd3d90_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_cddf41c5-9ac0-4761-b4af-0bdbdfcd3d90" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_cddf41c5-9ac0-4761-b4af-0bdbdfcd3d90_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_242475b9-385d-48cc-a2b5-30eac5a1c340" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_cddf41c5-9ac0-4761-b4af-0bdbdfcd3d90" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_242475b9-385d-48cc-a2b5-30eac5a1c340" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_df1b292a-8817-4f45-811d-96f281a1e554" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_242475b9-385d-48cc-a2b5-30eac5a1c340" xlink:to="loc_us-gaap_SalesRevenueNetMember_df1b292a-8817-4f45-811d-96f281a1e554" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/SegmentsReconciliationofNetEarningstoTotalCompanyAdjustedEBITDADetails" xlink:type="simple" xlink:href="see-20230930.xsd#SegmentsReconciliationofNetEarningstoTotalCompanyAdjustedEBITDADetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/SegmentsReconciliationofNetEarningstoTotalCompanyAdjustedEBITDADetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_bca2784d-b065-4707-93c4-16bec22c5ff5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_f8ed3981-eb3a-4f92-a7ab-058f1b6fec5a" xlink:href="see-20230930.xsd#see_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_bca2784d-b065-4707-93c4-16bec22c5ff5" xlink:to="loc_see_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_f8ed3981-eb3a-4f92-a7ab-058f1b6fec5a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_64b890cf-2a52-42f9-bce9-a0d0853c2d01" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_bca2784d-b065-4707-93c4-16bec22c5ff5" xlink:to="loc_us-gaap_InterestExpense_64b890cf-2a52-42f9-bce9-a0d0853c2d01" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpenseNetOfAdjustments_6f70081b-714d-432d-86c1-c01d9ea7bb50" xlink:href="see-20230930.xsd#see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpenseNetOfAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_bca2784d-b065-4707-93c4-16bec22c5ff5" xlink:to="loc_see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpenseNetOfAdjustments_6f70081b-714d-432d-86c1-c01d9ea7bb50" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:href="see-20230930.xsd#see_SpecialItemsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_bca2784d-b065-4707-93c4-16bec22c5ff5" xlink:to="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessAcquisitionIntangibleAssetAmortization_88657738-8038-47a9-80ad-8b27de7e7c2f" xlink:href="see-20230930.xsd#see_BusinessAcquisitionIntangibleAssetAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_see_BusinessAcquisitionIntangibleAssetAmortization_88657738-8038-47a9-80ad-8b27de7e7c2f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessAcquisitionInventoryStepUpExpense_e46df8e2-39ae-4c1d-b56e-c7b8cc7c009b" xlink:href="see-20230930.xsd#see_BusinessAcquisitionInventoryStepUpExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_see_BusinessAcquisitionInventoryStepUpExpense_e46df8e2-39ae-4c1d-b56e-c7b8cc7c009b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries_458d861a-3592-4379-a630-349c92732bc6" xlink:href="see-20230930.xsd#see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries_458d861a-3592-4379-a630-349c92732bc6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringCosts_38e875a1-bbf6-461a-bc0f-4d4c951c8b0f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherRestructuringCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_us-gaap_OtherRestructuringCosts_38e875a1-bbf6-461a-bc0f-4d4c951c8b0f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ForeignCurrencyTransactionGainLossSubsidiaryBeforeTax_ed319cbb-629a-4634-8210-ac1285a72b9e" xlink:href="see-20230930.xsd#see_ForeignCurrencyTransactionGainLossSubsidiaryBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_see_ForeignCurrencyTransactionGainLossSubsidiaryBeforeTax_ed319cbb-629a-4634-8210-ac1285a72b9e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_e78617d2-c611-4f86-a8e4-fcbb80299c46" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_e78617d2-c611-4f86-a8e4-fcbb80299c46" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount_48a02bf0-82f0-4018-9a01-efd3b7323bf6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueImpairmentLossAnnualAmount_48a02bf0-82f0-4018-9a01-efd3b7323bf6" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessExitCostsContractTerminations_595d4b69-0e5d-4465-b08f-95c29533d938" xlink:href="see-20230930.xsd#see_BusinessExitCostsContractTerminations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_see_BusinessExitCostsContractTerminations_595d4b69-0e5d-4465-b08f-95c29533d938" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AcquisitionAndDivestitureCharges_61246c5c-631b-4a00-b324-c8fba4833a8c" xlink:href="see-20230930.xsd#see_AcquisitionAndDivestitureCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_see_AcquisitionAndDivestitureCharges_61246c5c-631b-4a00-b324-c8fba4833a8c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_OtherNonoperatingIncomeExpenseIncludingSpecialItems_13b42a03-b2b1-4a4b-a092-370c1a5abf67" xlink:href="see-20230930.xsd#see_OtherNonoperatingIncomeExpenseIncludingSpecialItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_SpecialItemsAbstract_25f66539-2ed1-418f-98ea-0f91186a3c74" xlink:to="loc_see_OtherNonoperatingIncomeExpenseIncludingSpecialItems_13b42a03-b2b1-4a4b-a092-370c1a5abf67" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PreTaxImpactOfSpecialItems_ca4d0e2d-3698-4998-b66e-c193c2eac11a" xlink:href="see-20230930.xsd#see_PreTaxImpactOfSpecialItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_bca2784d-b065-4707-93c4-16bec22c5ff5" xlink:to="loc_see_PreTaxImpactOfSpecialItems_ca4d0e2d-3698-4998-b66e-c193c2eac11a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_78c8a75f-c46f-4c47-bc91-11e04e9ab632" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_bca2784d-b065-4707-93c4-16bec22c5ff5" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_78c8a75f-c46f-4c47-bc91-11e04e9ab632" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_c6877d82-01f9-4c89-a683-2f581a75a78b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_bca2784d-b065-4707-93c4-16bec22c5ff5" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_c6877d82-01f9-4c89-a683-2f581a75a78b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_c0707435-d6ac-46ad-8637-6959a07b3655" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_c6877d82-01f9-4c89-a683-2f581a75a78b" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_c0707435-d6ac-46ad-8637-6959a07b3655" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_c0707435-d6ac-46ad-8637-6959a07b3655_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_c0707435-d6ac-46ad-8637-6959a07b3655" xlink:to="loc_us-gaap_SegmentDomain_c0707435-d6ac-46ad-8637-6959a07b3655_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_2c725e67-0d18-4ca2-9664-dc2ac873fa23" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_c0707435-d6ac-46ad-8637-6959a07b3655" xlink:to="loc_us-gaap_SegmentDomain_2c725e67-0d18-4ca2-9664-dc2ac873fa23" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoodCareMember_bdb50bb4-27fb-426b-b1bc-e21d22ac353a" xlink:href="see-20230930.xsd#see_FoodCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_2c725e67-0d18-4ca2-9664-dc2ac873fa23" xlink:to="loc_see_FoodCareMember_bdb50bb4-27fb-426b-b1bc-e21d22ac353a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProtectiveMember_2eb34e2d-3763-4e26-b5aa-059eec162eb2" xlink:href="see-20230930.xsd#see_ProtectiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_2c725e67-0d18-4ca2-9664-dc2ac873fa23" xlink:to="loc_see_ProtectiveMember_2eb34e2d-3763-4e26-b5aa-059eec162eb2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_1b24a576-8008-4d3d-91d5-5d87406de06e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_c6877d82-01f9-4c89-a683-2f581a75a78b" xlink:to="loc_srt_ConsolidationItemsAxis_1b24a576-8008-4d3d-91d5-5d87406de06e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_1b24a576-8008-4d3d-91d5-5d87406de06e_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_1b24a576-8008-4d3d-91d5-5d87406de06e" xlink:to="loc_srt_ConsolidationItemsDomain_1b24a576-8008-4d3d-91d5-5d87406de06e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_d8db3d36-57eb-44be-80be-7f3480e99c2b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_1b24a576-8008-4d3d-91d5-5d87406de06e" xlink:to="loc_srt_ConsolidationItemsDomain_d8db3d36-57eb-44be-80be-7f3480e99c2b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_306e825e-c422-4c4c-b63d-8e9a99acb0e2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_d8db3d36-57eb-44be-80be-7f3480e99c2b" xlink:to="loc_us-gaap_OperatingSegmentsMember_306e825e-c422-4c4c-b63d-8e9a99acb0e2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_edd257a5-baa0-4b89-a406-afc133532307" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_d8db3d36-57eb-44be-80be-7f3480e99c2b" xlink:to="loc_us-gaap_CorporateNonSegmentMember_edd257a5-baa0-4b89-a406-afc133532307" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_6d9b1add-e2e7-4f85-a1f5-b979660803bb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_c6877d82-01f9-4c89-a683-2f581a75a78b" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_6d9b1add-e2e7-4f85-a1f5-b979660803bb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6d9b1add-e2e7-4f85-a1f5-b979660803bb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_6d9b1add-e2e7-4f85-a1f5-b979660803bb" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6d9b1add-e2e7-4f85-a1f5-b979660803bb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8ebc50f4-639e-4d10-9dd6-9ffbffce8e4e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_6d9b1add-e2e7-4f85-a1f5-b979660803bb" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8ebc50f4-639e-4d10-9dd6-9ffbffce8e4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_LiquiboxMember_d4afc6aa-0316-4302-b59d-aa582cea8d12" xlink:href="see-20230930.xsd#see_LiquiboxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8ebc50f4-639e-4d10-9dd6-9ffbffce8e4e" xlink:to="loc_see_LiquiboxMember_d4afc6aa-0316-4302-b59d-aa582cea8d12" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/SegmentsReconciliationofNetEarningstoTotalCompanyAdjustedEBITDADepreciationandRestructuringExpenseDetails" xlink:type="simple" xlink:href="see-20230930.xsd#SegmentsReconciliationofNetEarningstoTotalCompanyAdjustedEBITDADepreciationandRestructuringExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/SegmentsReconciliationofNetEarningstoTotalCompanyAdjustedEBITDADepreciationandRestructuringExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_104cd851-c998-4652-ba63-c88f845dffc1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortizationAbstract_33c63e7b-cba6-4e3f-9c61-a3e349bfb996" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationAndAmortizationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_104cd851-c998-4652-ba63-c88f845dffc1" xlink:to="loc_us-gaap_DepreciationAndAmortizationAbstract_33c63e7b-cba6-4e3f-9c61-a3e349bfb996" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpense_85d9368a-fd60-4bbe-95eb-bd1ff33b98d2" xlink:href="see-20230930.xsd#see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DepreciationAndAmortizationAbstract_33c63e7b-cba6-4e3f-9c61-a3e349bfb996" xlink:to="loc_see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpense_85d9368a-fd60-4bbe-95eb-bd1ff33b98d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessAcquisitionIntangibleAssetAmortization_a5cdd3a6-0e98-47da-831e-ce33da3b5145" xlink:href="see-20230930.xsd#see_BusinessAcquisitionIntangibleAssetAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DepreciationAndAmortizationAbstract_33c63e7b-cba6-4e3f-9c61-a3e349bfb996" xlink:to="loc_see_BusinessAcquisitionIntangibleAssetAmortization_a5cdd3a6-0e98-47da-831e-ce33da3b5145" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpenseNetOfAdjustments_3635a2d7-fe7f-479b-80e2-3715b00b613e" xlink:href="see-20230930.xsd#see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpenseNetOfAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DepreciationAndAmortizationAbstract_33c63e7b-cba6-4e3f-9c61-a3e349bfb996" xlink:to="loc_see_DepreciationDepletionAndAmortizationIncludingAllocatedShareBasedCompensationExpenseNetOfAdjustments_3635a2d7-fe7f-479b-80e2-3715b00b613e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_dfb1ac0f-2511-4285-aed1-c66d5b274f37" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DepreciationAndAmortizationAbstract_33c63e7b-cba6-4e3f-9c61-a3e349bfb996" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_dfb1ac0f-2511-4285-aed1-c66d5b274f37" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries_039e5983-e331-44dd-94d1-ce671d6684ea" xlink:href="see-20230930.xsd#see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_104cd851-c998-4652-ba63-c88f845dffc1" xlink:to="loc_see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries_039e5983-e331-44dd-94d1-ce671d6684ea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_95f4321f-74f8-4a92-90cc-98cff8bc8c7e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_104cd851-c998-4652-ba63-c88f845dffc1" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_95f4321f-74f8-4a92-90cc-98cff8bc8c7e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_8e9679f2-6001-41a1-8f98-86d1aab1916c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_95f4321f-74f8-4a92-90cc-98cff8bc8c7e" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_8e9679f2-6001-41a1-8f98-86d1aab1916c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_8e9679f2-6001-41a1-8f98-86d1aab1916c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_8e9679f2-6001-41a1-8f98-86d1aab1916c" xlink:to="loc_us-gaap_SegmentDomain_8e9679f2-6001-41a1-8f98-86d1aab1916c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_96fe3505-3f25-4fec-bf61-7165036c09a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_8e9679f2-6001-41a1-8f98-86d1aab1916c" xlink:to="loc_us-gaap_SegmentDomain_96fe3505-3f25-4fec-bf61-7165036c09a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoodCareMember_a628d570-03b7-40d6-8217-fa5c679298ec" xlink:href="see-20230930.xsd#see_FoodCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_96fe3505-3f25-4fec-bf61-7165036c09a8" xlink:to="loc_see_FoodCareMember_a628d570-03b7-40d6-8217-fa5c679298ec" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProtectiveMember_d182568e-2148-4e71-a4c0-72bf57236deb" xlink:href="see-20230930.xsd#see_ProtectiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_96fe3505-3f25-4fec-bf61-7165036c09a8" xlink:to="loc_see_ProtectiveMember_d182568e-2148-4e71-a4c0-72bf57236deb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_476a2e9b-fd25-4666-93bc-1b34a3f176f3" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_95f4321f-74f8-4a92-90cc-98cff8bc8c7e" xlink:to="loc_srt_ConsolidationItemsAxis_476a2e9b-fd25-4666-93bc-1b34a3f176f3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_476a2e9b-fd25-4666-93bc-1b34a3f176f3_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_476a2e9b-fd25-4666-93bc-1b34a3f176f3" xlink:to="loc_srt_ConsolidationItemsDomain_476a2e9b-fd25-4666-93bc-1b34a3f176f3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_70ffe117-781a-438c-9247-5693b582c91c" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_476a2e9b-fd25-4666-93bc-1b34a3f176f3" xlink:to="loc_srt_ConsolidationItemsDomain_70ffe117-781a-438c-9247-5693b582c91c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_65ae79d0-47b9-43f6-a36f-5c40dd1c9fb0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_70ffe117-781a-438c-9247-5693b582c91c" xlink:to="loc_us-gaap_OperatingSegmentsMember_65ae79d0-47b9-43f6-a36f-5c40dd1c9fb0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_ae6a1fb3-6619-44bf-9c6c-2c40e33addfa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_95f4321f-74f8-4a92-90cc-98cff8bc8c7e" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_ae6a1fb3-6619-44bf-9c6c-2c40e33addfa" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_ae6a1fb3-6619-44bf-9c6c-2c40e33addfa_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_ae6a1fb3-6619-44bf-9c6c-2c40e33addfa" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_ae6a1fb3-6619-44bf-9c6c-2c40e33addfa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6de3a96f-65ae-47ac-a09f-3d185ce14b5f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_ae6a1fb3-6619-44bf-9c6c-2c40e33addfa" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6de3a96f-65ae-47ac-a09f-3d185ce14b5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_LiquiboxMember_3e1d580f-00da-41ca-adc8-1f5169fde513" xlink:href="see-20230930.xsd#see_LiquiboxMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_6de3a96f-65ae-47ac-a09f-3d185ce14b5f" xlink:to="loc_see_LiquiboxMember_3e1d580f-00da-41ca-adc8-1f5169fde513" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/SegmentsAssetsbyReportableSegmentsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#SegmentsAssetsbyReportableSegmentsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/SegmentsAssetsbyReportableSegmentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_99348a83-ed1a-495f-8461-a2aeb232af37" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract_684ee484-23e4-404d-b7c2-12029aa3260b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_99348a83-ed1a-495f-8461-a2aeb232af37" xlink:to="loc_us-gaap_AssetsAbstract_684ee484-23e4-404d-b7c2-12029aa3260b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AllocatedSegmentAssetsAbstract_1ce13c86-d60b-47a0-9413-d4eddbadfa9b" xlink:href="see-20230930.xsd#see_AllocatedSegmentAssetsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_684ee484-23e4-404d-b7c2-12029aa3260b" xlink:to="loc_see_AllocatedSegmentAssetsAbstract_1ce13c86-d60b-47a0-9413-d4eddbadfa9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AllocatedSegmentAssets_37596351-05c5-480b-a0ce-3090fcf32c0f" xlink:href="see-20230930.xsd#see_AllocatedSegmentAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AllocatedSegmentAssetsAbstract_1ce13c86-d60b-47a0-9413-d4eddbadfa9b" xlink:to="loc_see_AllocatedSegmentAssets_37596351-05c5-480b-a0ce-3090fcf32c0f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:href="see-20230930.xsd#see_AssetsNotAllocatedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_684ee484-23e4-404d-b7c2-12029aa3260b" xlink:to="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_d46d6fd8-15dc-478d-9863-0cefe8e3e5fc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_d46d6fd8-15dc-478d-9863-0cefe8e3e5fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_5749b449-a009-4079-b364-0fcd55b1b331" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_5749b449-a009-4079-b364-0fcd55b1b331" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_cf1680a1-caeb-41ee-853d-31a254f51a0a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:to="loc_us-gaap_IncomeTaxesReceivable_cf1680a1-caeb-41ee-853d-31a254f51a0a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivablesNetCurrent_6d7f78c8-d2a7-4071-9a94-00bea7599e23" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherReceivablesNetCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:to="loc_us-gaap_OtherReceivablesNetCurrent_6d7f78c8-d2a7-4071-9a94-00bea7599e23" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepositsAssetsCurrent_3540b0be-34d1-42da-b2cc-780db976d768" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepositsAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:to="loc_us-gaap_DepositsAssetsCurrent_3540b0be-34d1-42da-b2cc-780db976d768" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxAssetsNet_be71dd56-d87a-4963-a717-303514e96949" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredIncomeTaxAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:to="loc_us-gaap_DeferredIncomeTaxAssetsNet_be71dd56-d87a-4963-a717-303514e96949" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_2d7334ee-8f8c-45b4-bf14-94541f0da4b0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsMiscellaneousNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_AssetsNotAllocatedAbstract_65a98162-f2a6-43e7-bd53-3250990df7c7" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_2d7334ee-8f8c-45b4-bf14-94541f0da4b0" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_44ce8b56-1bd0-4fc8-b655-12143520919d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Assets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract_684ee484-23e4-404d-b7c2-12029aa3260b" xlink:to="loc_us-gaap_Assets_44ce8b56-1bd0-4fc8-b655-12143520919d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_08231b3d-2edd-48a0-9f77-d4759365b9a4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_99348a83-ed1a-495f-8461-a2aeb232af37" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_08231b3d-2edd-48a0-9f77-d4759365b9a4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_8e342fac-f709-41f8-b644-cb5419917e20" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_08231b3d-2edd-48a0-9f77-d4759365b9a4" xlink:to="loc_srt_ConsolidationItemsAxis_8e342fac-f709-41f8-b644-cb5419917e20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_8e342fac-f709-41f8-b644-cb5419917e20_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_8e342fac-f709-41f8-b644-cb5419917e20" xlink:to="loc_srt_ConsolidationItemsDomain_8e342fac-f709-41f8-b644-cb5419917e20_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_4e55de02-ba07-4249-90d7-53e0f85fcd86" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_8e342fac-f709-41f8-b644-cb5419917e20" xlink:to="loc_srt_ConsolidationItemsDomain_4e55de02-ba07-4249-90d7-53e0f85fcd86" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_cdf37576-2fd4-4b6c-b47f-06eba3ef5c4c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_4e55de02-ba07-4249-90d7-53e0f85fcd86" xlink:to="loc_us-gaap_OperatingSegmentsMember_cdf37576-2fd4-4b6c-b47f-06eba3ef5c4c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MaterialReconcilingItemsMember_572a9d34-6f90-47b3-ad4a-93693345ea3b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MaterialReconcilingItemsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_4e55de02-ba07-4249-90d7-53e0f85fcd86" xlink:to="loc_us-gaap_MaterialReconcilingItemsMember_572a9d34-6f90-47b3-ad4a-93693345ea3b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_2bfe4beb-82a8-48f4-98c6-5f8525ff79ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_08231b3d-2edd-48a0-9f77-d4759365b9a4" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_2bfe4beb-82a8-48f4-98c6-5f8525ff79ce" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_2bfe4beb-82a8-48f4-98c6-5f8525ff79ce_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_2bfe4beb-82a8-48f4-98c6-5f8525ff79ce" xlink:to="loc_us-gaap_SegmentDomain_2bfe4beb-82a8-48f4-98c6-5f8525ff79ce_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_f3eb41cf-5f2c-461b-9271-1351e8ca58be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_2bfe4beb-82a8-48f4-98c6-5f8525ff79ce" xlink:to="loc_us-gaap_SegmentDomain_f3eb41cf-5f2c-461b-9271-1351e8ca58be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoodCareMember_dd4a3dc1-df65-4e2e-ae17-ccf7b88ad727" xlink:href="see-20230930.xsd#see_FoodCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_f3eb41cf-5f2c-461b-9271-1351e8ca58be" xlink:to="loc_see_FoodCareMember_dd4a3dc1-df65-4e2e-ae17-ccf7b88ad727" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProtectiveMember_80856026-531b-4be4-bf2a-b57e1b651b40" xlink:href="see-20230930.xsd#see_ProtectiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_f3eb41cf-5f2c-461b-9271-1351e8ca58be" xlink:to="loc_see_ProtectiveMember_80856026-531b-4be4-bf2a-b57e1b651b40" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/GoodwillandIdentifiableIntangibleAssetsnetSummaryofGoodwillBalancesbyReportableSegmentDetails" xlink:type="simple" xlink:href="see-20230930.xsd#GoodwillandIdentifiableIntangibleAssetsnetSummaryofGoodwillBalancesbyReportableSegmentDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/GoodwillandIdentifiableIntangibleAssetsnetSummaryofGoodwillBalancesbyReportableSegmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_878c8f72-6ad9-4abc-b88d-950042d4a252" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillRollForward_47b6fa08-1f92-4ed7-94a6-638b93c80d9a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_878c8f72-6ad9-4abc-b88d-950042d4a252" xlink:to="loc_us-gaap_GoodwillRollForward_47b6fa08-1f92-4ed7-94a6-638b93c80d9a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillGross_0fcf5f50-5f74-42ae-94c9-3c6b3c084405" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_47b6fa08-1f92-4ed7-94a6-638b93c80d9a" xlink:to="loc_us-gaap_GoodwillGross_0fcf5f50-5f74-42ae-94c9-3c6b3c084405" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_d42b9376-bb24-47b0-ba12-98803e6d54d6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillImpairedAccumulatedImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_47b6fa08-1f92-4ed7-94a6-638b93c80d9a" xlink:to="loc_us-gaap_GoodwillImpairedAccumulatedImpairmentLoss_d42b9376-bb24-47b0-ba12-98803e6d54d6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_34987e25-baa6-4458-951e-e671dd596a23" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_47b6fa08-1f92-4ed7-94a6-638b93c80d9a" xlink:to="loc_us-gaap_Goodwill_34987e25-baa6-4458-951e-e671dd596a23" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_3c7af88b-60b8-4b0f-b7b4-951dc4cad86b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAcquiredDuringPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_47b6fa08-1f92-4ed7-94a6-638b93c80d9a" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_3c7af88b-60b8-4b0f-b7b4-951dc4cad86b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_18f080e5-3749-46bc-872a-9157f9c9dae5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_47b6fa08-1f92-4ed7-94a6-638b93c80d9a" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_18f080e5-3749-46bc-872a-9157f9c9dae5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_7472da48-8810-4e85-b077-586118ff8a87" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Goodwill"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_70ab1c82-fed0-4177-a4b2-cf5d59dc1b37" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_878c8f72-6ad9-4abc-b88d-950042d4a252" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_70ab1c82-fed0-4177-a4b2-cf5d59dc1b37" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_caf431d9-19b0-4b9c-9d05-899da2c6aedc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_70ab1c82-fed0-4177-a4b2-cf5d59dc1b37" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_caf431d9-19b0-4b9c-9d05-899da2c6aedc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_caf431d9-19b0-4b9c-9d05-899da2c6aedc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_caf431d9-19b0-4b9c-9d05-899da2c6aedc" xlink:to="loc_us-gaap_SegmentDomain_caf431d9-19b0-4b9c-9d05-899da2c6aedc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_d6b683c5-6a07-4482-89c5-404ff31dd45d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_caf431d9-19b0-4b9c-9d05-899da2c6aedc" xlink:to="loc_us-gaap_SegmentDomain_d6b683c5-6a07-4482-89c5-404ff31dd45d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoodCareMember_2dc037fe-0968-42a9-ba35-58c7422b48c8" xlink:href="see-20230930.xsd#see_FoodCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d6b683c5-6a07-4482-89c5-404ff31dd45d" xlink:to="loc_see_FoodCareMember_2dc037fe-0968-42a9-ba35-58c7422b48c8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProductCareMember_5ad682e1-78ee-4ec7-98ae-e8399dd1ff03" xlink:href="see-20230930.xsd#see_ProductCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_d6b683c5-6a07-4482-89c5-404ff31dd45d" xlink:to="loc_see_ProductCareMember_5ad682e1-78ee-4ec7-98ae-e8399dd1ff03" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/GoodwillandIdentifiableIntangibleAssetsnetSummaryofIdentifiableIntangibleAssetsnetDetails" xlink:type="simple" xlink:href="see-20230930.xsd#GoodwillandIdentifiableIntangibleAssetsnetSummaryofIdentifiableIntangibleAssetsnetDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/GoodwillandIdentifiableIntangibleAssetsnetSummaryofIdentifiableIntangibleAssetsnetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_ca6536ed-8a9b-457a-9ba2-cc79ee629c42" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_db93954b-0990-4c2d-8be1-8d2dbe5a29fc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_ca6536ed-8a9b-457a-9ba2-cc79ee629c42" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_db93954b-0990-4c2d-8be1-8d2dbe5a29fc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_571e037f-fb98-4136-8119-95330d8b2431" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_ca6536ed-8a9b-457a-9ba2-cc79ee629c42" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_571e037f-fb98-4136-8119-95330d8b2431" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_060fc98d-8edd-4b0f-aa4c-82ec040d9db8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_ca6536ed-8a9b-457a-9ba2-cc79ee629c42" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_060fc98d-8edd-4b0f-aa4c-82ec040d9db8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_55006ab6-d157-4175-bc79-43c81e2f5f44" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_ca6536ed-8a9b-457a-9ba2-cc79ee629c42" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_55006ab6-d157-4175-bc79-43c81e2f5f44" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6300a531-a635-48e4-ad7d-53166d871b2d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_55006ab6-d157-4175-bc79-43c81e2f5f44" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6300a531-a635-48e4-ad7d-53166d871b2d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6300a531-a635-48e4-ad7d-53166d871b2d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6300a531-a635-48e4-ad7d-53166d871b2d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_6300a531-a635-48e4-ad7d-53166d871b2d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0e7ba71f-0cc6-4313-84a5-eea1984a0558" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_6300a531-a635-48e4-ad7d-53166d871b2d" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0e7ba71f-0cc6-4313-84a5-eea1984a0558" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerRelationshipsMember_0a418515-f24b-4ddc-824d-1919b2ae0169" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0e7ba71f-0cc6-4313-84a5-eea1984a0558" xlink:to="loc_us-gaap_CustomerRelationshipsMember_0a418515-f24b-4ddc-824d-1919b2ae0169" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_ee9668b9-eb65-4311-aa49-e2aa6892ab44" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TrademarksAndTradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0e7ba71f-0cc6-4313-84a5-eea1984a0558" xlink:to="loc_us-gaap_TrademarksAndTradeNamesMember_ee9668b9-eb65-4311-aa49-e2aa6892ab44" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_CapitalizedSoftwareMember_cae050be-49ab-4d7b-93c1-1304acfb8e41" xlink:href="see-20230930.xsd#see_CapitalizedSoftwareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0e7ba71f-0cc6-4313-84a5-eea1984a0558" xlink:to="loc_see_CapitalizedSoftwareMember_cae050be-49ab-4d7b-93c1-1304acfb8e41" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_TechnologyMember_e352eb87-a428-4f8e-a3f3-a521611bc532" xlink:href="see-20230930.xsd#see_TechnologyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0e7ba71f-0cc6-4313-84a5-eea1984a0558" xlink:to="loc_see_TechnologyMember_e352eb87-a428-4f8e-a3f3-a521611bc532" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerContractsMember_42c81090-bd13-49ff-9a61-b8e11c161885" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerContractsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_0e7ba71f-0cc6-4313-84a5-eea1984a0558" xlink:to="loc_us-gaap_CustomerContractsMember_42c81090-bd13-49ff-9a61-b8e11c161885" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_8ceb48e4-4d64-42b5-9b48-2d9e91094f8f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_0e18204f-0c62-4790-85e9-6df54cb849be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_8ceb48e4-4d64-42b5-9b48-2d9e91094f8f" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_0e18204f-0c62-4790-85e9-6df54cb849be" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_084a8eb3-b12b-419f-8b59-0f6343c45a95" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassLineItems_8ceb48e4-4d64-42b5-9b48-2d9e91094f8f" xlink:to="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_084a8eb3-b12b-419f-8b59-0f6343c45a95" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_409f65ea-a3d7-4eee-9b6a-a21e5635017d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfIndefiniteLivedIntangibleAssetsTable_084a8eb3-b12b-419f-8b59-0f6343c45a95" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_409f65ea-a3d7-4eee-9b6a-a21e5635017d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_409f65ea-a3d7-4eee-9b6a-a21e5635017d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_409f65ea-a3d7-4eee-9b6a-a21e5635017d" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_409f65ea-a3d7-4eee-9b6a-a21e5635017d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_b48426c0-027a-44e9-9bab-bd839ce0f965" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_409f65ea-a3d7-4eee-9b6a-a21e5635017d" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_b48426c0-027a-44e9-9bab-bd839ce0f965" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_2ccc3974-c9d3-4bb3-bee7-04a68c6513c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TrademarksAndTradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_b48426c0-027a-44e9-9bab-bd839ce0f965" xlink:to="loc_us-gaap_TrademarksAndTradeNamesMember_2ccc3974-c9d3-4bb3-bee7-04a68c6513c1" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/AccountsReceivableSecuritizationProgramsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#AccountsReceivableSecuritizationProgramsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/AccountsReceivableSecuritizationProgramsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_NumberOfBanksInvolvedInSaleOfFractionOfAccountsReceivable_1175b71f-2997-44b2-98f0-996c86f43c74" xlink:href="see-20230930.xsd#see_NumberOfBanksInvolvedInSaleOfFractionOfAccountsReceivable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:to="loc_see_NumberOfBanksInvolvedInSaleOfFractionOfAccountsReceivable_1175b71f-2997-44b2-98f0-996c86f43c74" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_93b58e4e-6c33-488f-8805-2a3446f4abbc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:to="loc_us-gaap_ShortTermBorrowings_93b58e4e-6c33-488f-8805-2a3446f4abbc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PurchaseLimitForReceivableInterestsUnderAccountsReceivableSecuritizationProgram_b1a32e3b-acf3-4d28-80c0-742b4c53cbd2" xlink:href="see-20230930.xsd#see_PurchaseLimitForReceivableInterestsUnderAccountsReceivableSecuritizationProgram"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:to="loc_see_PurchaseLimitForReceivableInterestsUnderAccountsReceivableSecuritizationProgram_b1a32e3b-acf3-4d28-80c0-742b4c53cbd2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_LevelOfEligibleAssetsAvailableUnderAccountsReceivableSecuritizationProgram_cbdfbc0c-8309-44a8-a1c8-21efc37ab5ec" xlink:href="see-20230930.xsd#see_LevelOfEligibleAssetsAvailableUnderAccountsReceivableSecuritizationProgram"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:to="loc_see_LevelOfEligibleAssetsAvailableUnderAccountsReceivableSecuritizationProgram_cbdfbc0c-8309-44a8-a1c8-21efc37ab5ec" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_987cff8e-8020-4da1-90d6-15ab8dd776d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:to="loc_us-gaap_SecuritizedAssetsAndAnyOtherFinancialAssetsManagedTogetherPrincipalAmountOutstanding_987cff8e-8020-4da1-90d6-15ab8dd776d2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_f2064ff6-8ee3-41d8-b118-a1082cae34c0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_f2064ff6-8ee3-41d8-b118-a1082cae34c0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense_65478b88-5d82-496e-b494-8ecb36d7ddf4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:to="loc_us-gaap_InterestExpense_65478b88-5d82-496e-b494-8ecb36d7ddf4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTable_1887e3a1-592c-4fb1-85ca-dbbcace647b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementLineItems_7ff1175f-668d-41bc-9d1a-a4858fa194d1" xlink:to="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTable_1887e3a1-592c-4fb1-85ca-dbbcace647b4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_8236d507-fa01-45c7-9c5a-68704f9b8fc4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTable_1887e3a1-592c-4fb1-85ca-dbbcace647b4" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_8236d507-fa01-45c7-9c5a-68704f9b8fc4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_8236d507-fa01-45c7-9c5a-68704f9b8fc4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_8236d507-fa01-45c7-9c5a-68704f9b8fc4" xlink:to="loc_us-gaap_ReceivableTypeDomain_8236d507-fa01-45c7-9c5a-68704f9b8fc4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_c69276a5-edf0-4dbb-abdd-4ea136bf8499" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_8236d507-fa01-45c7-9c5a-68704f9b8fc4" xlink:to="loc_us-gaap_ReceivableTypeDomain_c69276a5-edf0-4dbb-abdd-4ea136bf8499" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_UnitedStatesAccountsReceivableSecuritizationProgramMember_9731850a-12c4-4d8c-9ae6-0ea2ce6cc889" xlink:href="see-20230930.xsd#see_UnitedStatesAccountsReceivableSecuritizationProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_c69276a5-edf0-4dbb-abdd-4ea136bf8499" xlink:to="loc_see_UnitedStatesAccountsReceivableSecuritizationProgramMember_9731850a-12c4-4d8c-9ae6-0ea2ce6cc889" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_EuropeanAccountsReceivableSecuritizationProgramMember_59fe0f1f-ab22-44c5-a94e-56a2cd408880" xlink:href="see-20230930.xsd#see_EuropeanAccountsReceivableSecuritizationProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_c69276a5-edf0-4dbb-abdd-4ea136bf8499" xlink:to="loc_see_EuropeanAccountsReceivableSecuritizationProgramMember_59fe0f1f-ab22-44c5-a94e-56a2cd408880" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AccountsReceivableSecuritizationProgramsMember_074e6036-2617-4455-a050-d21126845d06" xlink:href="see-20230930.xsd#see_AccountsReceivableSecuritizationProgramsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_c69276a5-edf0-4dbb-abdd-4ea136bf8499" xlink:to="loc_see_AccountsReceivableSecuritizationProgramsMember_074e6036-2617-4455-a050-d21126845d06" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_ace85121-e734-41e8-8d6f-52dcfa7a3c7b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTable_1887e3a1-592c-4fb1-85ca-dbbcace647b4" xlink:to="loc_srt_StatementGeographicalAxis_ace85121-e734-41e8-8d6f-52dcfa7a3c7b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_ace85121-e734-41e8-8d6f-52dcfa7a3c7b_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_ace85121-e734-41e8-8d6f-52dcfa7a3c7b" xlink:to="loc_srt_SegmentGeographicalDomain_ace85121-e734-41e8-8d6f-52dcfa7a3c7b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_57491dd5-55de-4f5c-bf46-0e34f7fbc386" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_ace85121-e734-41e8-8d6f-52dcfa7a3c7b" xlink:to="loc_srt_SegmentGeographicalDomain_57491dd5-55de-4f5c-bf46-0e34f7fbc386" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_d56be399-a319-4244-86b8-5fdc37b1080a" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_57491dd5-55de-4f5c-bf46-0e34f7fbc386" xlink:to="loc_country_US_d56be399-a319-4244-86b8-5fdc37b1080a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EuropeMember_5b5195e5-1f90-47fd-9caa-a7cc5efbf32d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_EuropeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_57491dd5-55de-4f5c-bf46-0e34f7fbc386" xlink:to="loc_srt_EuropeMember_5b5195e5-1f90-47fd-9caa-a7cc5efbf32d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_100e9b47-49ba-4607-8fff-46ae4dc705c6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTable_1887e3a1-592c-4fb1-85ca-dbbcace647b4" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_100e9b47-49ba-4607-8fff-46ae4dc705c6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_100e9b47-49ba-4607-8fff-46ae4dc705c6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_100e9b47-49ba-4607-8fff-46ae4dc705c6" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_100e9b47-49ba-4607-8fff-46ae4dc705c6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_8f118251-7131-4bb0-92fc-68dd138dcc00" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_100e9b47-49ba-4607-8fff-46ae4dc705c6" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_8f118251-7131-4bb0-92fc-68dd138dcc00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_e0972a85-4ca5-4d7d-aee9-42d19a0224b6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_8f118251-7131-4bb0-92fc-68dd138dcc00" xlink:to="loc_us-gaap_LineOfCreditMember_e0972a85-4ca5-4d7d-aee9-42d19a0224b6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_53ec207d-70d8-4d29-947b-3a1686f8295c" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTable_1887e3a1-592c-4fb1-85ca-dbbcace647b4" xlink:to="loc_srt_RangeAxis_53ec207d-70d8-4d29-947b-3a1686f8295c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_53ec207d-70d8-4d29-947b-3a1686f8295c_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_53ec207d-70d8-4d29-947b-3a1686f8295c" xlink:to="loc_srt_RangeMember_53ec207d-70d8-4d29-947b-3a1686f8295c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_3b03d9e2-86d1-41e7-a6b1-4cdf6bd0866c" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_53ec207d-70d8-4d29-947b-3a1686f8295c" xlink:to="loc_srt_RangeMember_3b03d9e2-86d1-41e7-a6b1-4cdf6bd0866c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_dc918cd9-1dc5-456b-9a61-dde7801b91bd" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_3b03d9e2-86d1-41e7-a6b1-4cdf6bd0866c" xlink:to="loc_srt_MaximumMember_dc918cd9-1dc5-456b-9a61-dde7801b91bd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralAxis_534e21c3-58d7-4c49-828b-5890df6a0c66" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CollateralAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_QualitativeAndQuantitativeInformationTransferorsContinuingInvolvementTable_1887e3a1-592c-4fb1-85ca-dbbcace647b4" xlink:to="loc_us-gaap_CollateralAxis_534e21c3-58d7-4c49-828b-5890df6a0c66" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralDomain_534e21c3-58d7-4c49-828b-5890df6a0c66_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CollateralDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CollateralAxis_534e21c3-58d7-4c49-828b-5890df6a0c66" xlink:to="loc_us-gaap_CollateralDomain_534e21c3-58d7-4c49-828b-5890df6a0c66_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CollateralDomain_24db22a6-a812-433f-9324-10cb96477eb2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CollateralDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CollateralAxis_534e21c3-58d7-4c49-828b-5890df6a0c66" xlink:to="loc_us-gaap_CollateralDomain_24db22a6-a812-433f-9324-10cb96477eb2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeAccountsReceivableMember_be7d6530-364f-4b2f-b7ac-4070da26af24" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TradeAccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CollateralDomain_24db22a6-a812-433f-9324-10cb96477eb2" xlink:to="loc_us-gaap_TradeAccountsReceivableMember_be7d6530-364f-4b2f-b7ac-4070da26af24" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/RestructuringActivitiesAdditionalInformationDetails" xlink:type="simple" xlink:href="see-20230930.xsd#RestructuringActivitiesAdditionalInformationDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/RestructuringActivitiesAdditionalInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringProgramPeriod_10ea1b4c-0da7-4f7e-a8ab-2ec03946b8a4" xlink:href="see-20230930.xsd#see_RestructuringProgramPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_see_RestructuringProgramPeriod_10ea1b4c-0da7-4f7e-a8ab-2ec03946b8a4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_7152a3fa-9f1f-4b37-ac86-89eeddcd8b2d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_7152a3fa-9f1f-4b37-ac86-89eeddcd8b2d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessExitCostsContractTerminations_3f286db2-a015-48fe-9e55-494101dce72c" xlink:href="see-20230930.xsd#see_BusinessExitCostsContractTerminations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_see_BusinessExitCostsContractTerminations_3f286db2-a015-48fe-9e55-494101dce72c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_7c3ec638-c027-4302-ac64-ea0a7bb5c01e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_us-gaap_RestructuringCharges_7c3ec638-c027-4302-ac64-ea0a7bb5c01e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringCosts_08d2c48f-c76e-4cc0-8e21-c2d0fce21d1a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherRestructuringCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_us-gaap_OtherRestructuringCosts_08d2c48f-c76e-4cc0-8e21-c2d0fce21d1a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_34b5322b-bff2-40e3-a54b-37ea3e64f9ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringSettlementAndImpairmentProvisions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_us-gaap_RestructuringSettlementAndImpairmentProvisions_34b5322b-bff2-40e3-a54b-37ea3e64f9ef" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries_863f1ce2-32ed-454c-81f4-13a89378376b" xlink:href="see-20230930.xsd#see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_see_RestructuringAndOtherChargesExcludingAmountsRelatedToForeignSubsidiaries_863f1ce2-32ed-454c-81f4-13a89378376b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveCurrent_d2f016d7-4a44-4c39-82be-13ce3546463f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringReserveCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_us-gaap_RestructuringReserveCurrent_d2f016d7-4a44-4c39-82be-13ce3546463f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_16ae2a3d-f40d-49bf-a3d9-b2f9643cda1a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringReserve"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_us-gaap_RestructuringReserve_16ae2a3d-f40d-49bf-a3d9-b2f9643cda1a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_342d5f9e-4092-46c2-ae54-0eab730c248e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_424a0595-7eba-487f-9d23-3b7d13c0e80e" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_342d5f9e-4092-46c2-ae54-0eab730c248e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_9568a1dc-21ea-4ac6-8cbd-ae8ac7b8f892" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_342d5f9e-4092-46c2-ae54-0eab730c248e" xlink:to="loc_us-gaap_RestructuringPlanAxis_9568a1dc-21ea-4ac6-8cbd-ae8ac7b8f892" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_9568a1dc-21ea-4ac6-8cbd-ae8ac7b8f892_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_9568a1dc-21ea-4ac6-8cbd-ae8ac7b8f892" xlink:to="loc_us-gaap_RestructuringPlanDomain_9568a1dc-21ea-4ac6-8cbd-ae8ac7b8f892_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_5dbe5756-c27a-4f8f-80a6-861885e61f0c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_9568a1dc-21ea-4ac6-8cbd-ae8ac7b8f892" xlink:to="loc_us-gaap_RestructuringPlanDomain_5dbe5756-c27a-4f8f-80a6-861885e61f0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_CostTakeOutToGrowProgramMember_4b08883f-461a-459b-8cec-a3d8dc588fa8" xlink:href="see-20230930.xsd#see_CostTakeOutToGrowProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_5dbe5756-c27a-4f8f-80a6-861885e61f0c" xlink:to="loc_see_CostTakeOutToGrowProgramMember_4b08883f-461a-459b-8cec-a3d8dc588fa8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringProgramBusinessAcquisitionsMember_9f8dfd98-cea6-453e-a6c0-d0513b5a4924" xlink:href="see-20230930.xsd#see_RestructuringProgramBusinessAcquisitionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_5dbe5756-c27a-4f8f-80a6-861885e61f0c" xlink:to="loc_see_RestructuringProgramBusinessAcquisitionsMember_9f8dfd98-cea6-453e-a6c0-d0513b5a4924" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_SealedAirRestructuringProgramMember_259f4bab-70d4-4cf9-bcd3-a3719f900e9a" xlink:href="see-20230930.xsd#see_SealedAirRestructuringProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_5dbe5756-c27a-4f8f-80a6-861885e61f0c" xlink:to="loc_see_SealedAirRestructuringProgramMember_259f4bab-70d4-4cf9-bcd3-a3719f900e9a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_082d1cac-0a58-4bd8-a998-66607ce830f1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_342d5f9e-4092-46c2-ae54-0eab730c248e" xlink:to="loc_srt_RangeAxis_082d1cac-0a58-4bd8-a998-66607ce830f1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_082d1cac-0a58-4bd8-a998-66607ce830f1_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_082d1cac-0a58-4bd8-a998-66607ce830f1" xlink:to="loc_srt_RangeMember_082d1cac-0a58-4bd8-a998-66607ce830f1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_14b5ee1f-462a-43e3-b54b-3729299d9f95" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_082d1cac-0a58-4bd8-a998-66607ce830f1" xlink:to="loc_srt_RangeMember_14b5ee1f-462a-43e3-b54b-3729299d9f95" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_1692033e-7c04-415e-ae06-012419ba019e" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_14b5ee1f-462a-43e3-b54b-3729299d9f95" xlink:to="loc_srt_MinimumMember_1692033e-7c04-415e-ae06-012419ba019e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_bed02b3f-519a-4cf7-8dc5-f03ea28a9d86" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_14b5ee1f-462a-43e3-b54b-3729299d9f95" xlink:to="loc_srt_MaximumMember_bed02b3f-519a-4cf7-8dc5-f03ea28a9d86" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_95ebe736-96d6-4276-a7dd-e30fcf7f2e0f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_342d5f9e-4092-46c2-ae54-0eab730c248e" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_95ebe736-96d6-4276-a7dd-e30fcf7f2e0f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_95ebe736-96d6-4276-a7dd-e30fcf7f2e0f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_95ebe736-96d6-4276-a7dd-e30fcf7f2e0f" xlink:to="loc_us-gaap_SegmentDomain_95ebe736-96d6-4276-a7dd-e30fcf7f2e0f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_12aaf096-286d-4638-9a25-5f4a394b86a4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_95ebe736-96d6-4276-a7dd-e30fcf7f2e0f" xlink:to="loc_us-gaap_SegmentDomain_12aaf096-286d-4638-9a25-5f4a394b86a4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FoodCareMember_03e1d9de-7ed3-4981-8c92-fbc70e6a1739" xlink:href="see-20230930.xsd#see_FoodCareMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_12aaf096-286d-4638-9a25-5f4a394b86a4" xlink:to="loc_see_FoodCareMember_03e1d9de-7ed3-4981-8c92-fbc70e6a1739" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ProtectiveMember_4c8b6f06-e163-420e-9fe9-5ef13ab09738" xlink:href="see-20230930.xsd#see_ProtectiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_12aaf096-286d-4638-9a25-5f4a394b86a4" xlink:to="loc_see_ProtectiveMember_4c8b6f06-e163-420e-9fe9-5ef13ab09738" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_edfc4363-3860-4d12-99c0-6139ac3e7e27" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_342d5f9e-4092-46c2-ae54-0eab730c248e" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_edfc4363-3860-4d12-99c0-6139ac3e7e27" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_edfc4363-3860-4d12-99c0-6139ac3e7e27_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_edfc4363-3860-4d12-99c0-6139ac3e7e27" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_edfc4363-3860-4d12-99c0-6139ac3e7e27_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_90b55f40-e597-49cd-a6f9-385872a3fe81" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_edfc4363-3860-4d12-99c0-6139ac3e7e27" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_90b55f40-e597-49cd-a6f9-385872a3fe81" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FacilityClosingMember_55a02967-d9ad-4543-9074-c06dbf268f44" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FacilityClosingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_90b55f40-e597-49cd-a6f9-385872a3fe81" xlink:to="loc_us-gaap_FacilityClosingMember_55a02967-d9ad-4543-9074-c06dbf268f44" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ImpairmentPropertyPlantAndEquipmentMember_ecd6df75-2ef7-4647-a7c4-d0be60aabe4b" xlink:href="see-20230930.xsd#see_ImpairmentPropertyPlantAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_90b55f40-e597-49cd-a6f9-385872a3fe81" xlink:to="loc_see_ImpairmentPropertyPlantAndEquipmentMember_ecd6df75-2ef7-4647-a7c4-d0be60aabe4b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractTerminationMember_4bdb26c3-f55a-4691-a314-f4760c66c20b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractTerminationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_90b55f40-e597-49cd-a6f9-385872a3fe81" xlink:to="loc_us-gaap_ContractTerminationMember_4bdb26c3-f55a-4691-a314-f4760c66c20b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_InventoryObsolescenceMember_354ea405-d75d-4310-965b-b892643dba9a" xlink:href="see-20230930.xsd#see_InventoryObsolescenceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_90b55f40-e597-49cd-a6f9-385872a3fe81" xlink:to="loc_see_InventoryObsolescenceMember_354ea405-d75d-4310-965b-b892643dba9a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_EmployeeSeveranceRetentionAndOtherFacilityClosingCostsMember_9eb2425e-c9d7-43e9-970a-d73ca04fbd85" xlink:href="see-20230930.xsd#see_EmployeeSeveranceRetentionAndOtherFacilityClosingCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_90b55f40-e597-49cd-a6f9-385872a3fe81" xlink:to="loc_see_EmployeeSeveranceRetentionAndOtherFacilityClosingCostsMember_9eb2425e-c9d7-43e9-970a-d73ca04fbd85" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/RestructuringActivitiesScheduleofCTO2GrowProgramRestructuringSpendEstimatedDetails" xlink:type="simple" xlink:href="see-20230930.xsd#RestructuringActivitiesScheduleofCTO2GrowProgramRestructuringSpendEstimatedDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/RestructuringActivitiesScheduleofCTO2GrowProgramRestructuringSpendEstimatedDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_26e2c056-6ff4-44d2-b6f2-773ab7a285d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringCostsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_26e2c056-6ff4-44d2-b6f2-773ab7a285d9" xlink:to="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostOfReductionInHeadcount_9bf6b0ff-2d08-43a8-ac6b-22c7250462ca" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostOfReductionInHeadcount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:to="loc_see_RestructuringAndRelatedCostOfReductionInHeadcount_9bf6b0ff-2d08-43a8-ac6b-22c7250462ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringCosts_ec207350-9ebc-47aa-bc3b-e538bdb843b3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherRestructuringCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:to="loc_us-gaap_OtherRestructuringCosts_ec207350-9ebc-47aa-bc3b-e538bdb843b3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_BusinessExitCostsContractTerminations_41b0c785-7ca2-450b-bc8a-dfb0366dd1d8" xlink:href="see-20230930.xsd#see_BusinessExitCostsContractTerminations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:to="loc_see_BusinessExitCostsContractTerminations_41b0c785-7ca2-450b-bc8a-dfb0366dd1d8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpenditures_a1ef0581-1ef4-4628-8883-6badf1e19276" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpenditures"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:to="loc_see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpenditures_a1ef0581-1ef4-4628-8883-6badf1e19276" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_8fd140fe-e4a3-473c-b1b3-e1d98a61ef79" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_8fd140fe-e4a3-473c-b1b3-e1d98a61ef79" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_68634b06-0384-470d-b406-cdd1b4f6c1d6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_68634b06-0384-470d-b406-cdd1b4f6c1d6" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringImpairmentAndOtherCostsExpectedCosts_576e0379-fc64-4a62-a8c5-6e8ea866c356" xlink:href="see-20230930.xsd#see_RestructuringImpairmentAndOtherCostsExpectedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:to="loc_see_RestructuringImpairmentAndOtherCostsExpectedCosts_576e0379-fc64-4a62-a8c5-6e8ea866c356" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringSettlementAndImpairmentProvisionsExcludingCapitalExpendituresExpectedCosts_f8d2e6a5-ca5d-457f-8118-a762a2ce62a0" xlink:href="see-20230930.xsd#see_RestructuringSettlementAndImpairmentProvisionsExcludingCapitalExpendituresExpectedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostsAbstract_654afab2-ffda-4285-bfd4-920db9c40164" xlink:to="loc_see_RestructuringSettlementAndImpairmentProvisionsExcludingCapitalExpendituresExpectedCosts_f8d2e6a5-ca5d-457f-8118-a762a2ce62a0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:href="see-20230930.xsd#see_RestructuringCostsIncurredToDateAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_26e2c056-6ff4-44d2-b6f2-773ab7a285d9" xlink:to="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostsIncurredToDateReductionInHeadcount_f6349b28-a293-47c2-915c-0a7ecdf20fb5" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostsIncurredToDateReductionInHeadcount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:to="loc_see_RestructuringAndRelatedCostsIncurredToDateReductionInHeadcount_f6349b28-a293-47c2-915c-0a7ecdf20fb5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_OtherRestructuringCostsToDate_127533b6-1eeb-4b6e-9876-9d97f16fda13" xlink:href="see-20230930.xsd#see_OtherRestructuringCostsToDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:to="loc_see_OtherRestructuringCostsToDate_127533b6-1eeb-4b6e-9876-9d97f16fda13" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostsIncurredToDateContractTerminations_7a100848-7207-4b24-8e27-5c263a817935" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostsIncurredToDateContractTerminations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:to="loc_see_RestructuringAndRelatedCostsIncurredToDateContractTerminations_7a100848-7207-4b24-8e27-5c263a817935" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpendituresIncurredToDate_d2f701c7-11dc-4561-9691-cbdbebb0ce65" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpendituresIncurredToDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:to="loc_see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpendituresIncurredToDate_d2f701c7-11dc-4561-9691-cbdbebb0ce65" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_CapitalExpenditureRelatedToRestructuringAndAssociatedActivitiesCostIncurredToDate_9d2a8b23-40be-4cb4-b727-a3c20e644284" xlink:href="see-20230930.xsd#see_CapitalExpenditureRelatedToRestructuringAndAssociatedActivitiesCostIncurredToDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:to="loc_see_CapitalExpenditureRelatedToRestructuringAndAssociatedActivitiesCostIncurredToDate_9d2a8b23-40be-4cb4-b727-a3c20e644284" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_9847284e-411f-4d89-b129-147803c2da93" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringAndRelatedCostCostIncurredToDate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:to="loc_us-gaap_RestructuringAndRelatedCostCostIncurredToDate1_9847284e-411f-4d89-b129-147803c2da93" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringImpairmentAndOtherCostsCostIncurred_f024649b-b58c-4a1e-abc4-175d0616b884" xlink:href="see-20230930.xsd#see_RestructuringImpairmentAndOtherCostsCostIncurred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:to="loc_see_RestructuringImpairmentAndOtherCostsCostIncurred_f024649b-b58c-4a1e-abc4-175d0616b884" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringSettlementAndImpairmentProvisionsIncurredToDate_e86f9030-8777-46ff-a25e-2c8edc3ad47a" xlink:href="see-20230930.xsd#see_RestructuringSettlementAndImpairmentProvisionsIncurredToDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_see_RestructuringCostsIncurredToDateAbstract_cad484d0-e32a-4c59-abb5-4a51dbb7c8a6" xlink:to="loc_see_RestructuringSettlementAndImpairmentProvisionsIncurredToDate_e86f9030-8777-46ff-a25e-2c8edc3ad47a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringAndRelatedCostExpectedCostAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_26e2c056-6ff4-44d2-b6f2-773ab7a285d9" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostOfReductionInHeadcountExpectedCostRemaining_1e9379c2-166a-47d1-b1e9-db896dfe482b" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostOfReductionInHeadcountExpectedCostRemaining"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:to="loc_see_RestructuringAndRelatedCostOfReductionInHeadcountExpectedCostRemaining_1e9379c2-166a-47d1-b1e9-db896dfe482b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_OtherRestructuringCostsExpectedCostRemaining_9e9a036d-77fd-42ed-9958-1c3202ea4772" xlink:href="see-20230930.xsd#see_OtherRestructuringCostsExpectedCostRemaining"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:to="loc_see_OtherRestructuringCostsExpectedCostRemaining_9e9a036d-77fd-42ed-9958-1c3202ea4772" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostContractTerminationsExpectedCostRemaining_46d0237e-2a16-460d-8050-75e4692062b8" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostContractTerminationsExpectedCostRemaining"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:to="loc_see_RestructuringAndRelatedCostContractTerminationsExpectedCostRemaining_46d0237e-2a16-460d-8050-75e4692062b8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpendituresExpectedCostRemaining_05525e3f-94e5-4e34-887c-f37fdc532b44" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpendituresExpectedCostRemaining"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:to="loc_see_RestructuringAndRelatedCostsBeforeAssetImpairmentAndCapitalExpendituresExpectedCostRemaining_05525e3f-94e5-4e34-887c-f37fdc532b44" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_CapitalExpenditureRelatedToRestructuringAndAssociatedActivitiesExpectedCostRemaining_db3359da-24eb-4ce3-9ad0-d306e72910df" xlink:href="see-20230930.xsd#see_CapitalExpenditureRelatedToRestructuringAndAssociatedActivitiesExpectedCostRemaining"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:to="loc_see_CapitalExpenditureRelatedToRestructuringAndAssociatedActivitiesExpectedCostRemaining_db3359da-24eb-4ce3-9ad0-d306e72910df" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_bcc47152-d8ab-4f29-b9f3-82a107fde855" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_bcc47152-d8ab-4f29-b9f3-82a107fde855" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringCostImpairmentExpectedCostRemaining_e2b15fe1-f1e1-4d9d-a3a1-4062bae1bfe0" xlink:href="see-20230930.xsd#see_RestructuringCostImpairmentExpectedCostRemaining"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:to="loc_see_RestructuringCostImpairmentExpectedCostRemaining_e2b15fe1-f1e1-4d9d-a3a1-4062bae1bfe0" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RestructuringAndRelatedCostsImpairmentExpectedCostsRemaining_385011bc-5fd7-4cec-b92f-f1a6e6e775f3" xlink:href="see-20230930.xsd#see_RestructuringAndRelatedCostsImpairmentExpectedCostsRemaining"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringAndRelatedCostExpectedCostAbstract_11221f83-480c-426e-ad68-a6022c2b4273" xlink:to="loc_see_RestructuringAndRelatedCostsImpairmentExpectedCostsRemaining_385011bc-5fd7-4cec-b92f-f1a6e6e775f3" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_664b2d80-1345-4b2a-8dd9-0c50595f2366" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_26e2c056-6ff4-44d2-b6f2-773ab7a285d9" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_664b2d80-1345-4b2a-8dd9-0c50595f2366" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_5253ca80-2347-45e4-9010-4db7824f31df" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_664b2d80-1345-4b2a-8dd9-0c50595f2366" xlink:to="loc_us-gaap_RestructuringPlanAxis_5253ca80-2347-45e4-9010-4db7824f31df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_5253ca80-2347-45e4-9010-4db7824f31df_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_5253ca80-2347-45e4-9010-4db7824f31df" xlink:to="loc_us-gaap_RestructuringPlanDomain_5253ca80-2347-45e4-9010-4db7824f31df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_d011ac8f-6f01-4565-ac39-c7750cef1d15" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_5253ca80-2347-45e4-9010-4db7824f31df" xlink:to="loc_us-gaap_RestructuringPlanDomain_d011ac8f-6f01-4565-ac39-c7750cef1d15" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_CTO2GrowProgramMember_a0b4f804-72d5-4313-b987-0916a25c4a5e" xlink:href="see-20230930.xsd#see_CTO2GrowProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_d011ac8f-6f01-4565-ac39-c7750cef1d15" xlink:to="loc_see_CTO2GrowProgramMember_a0b4f804-72d5-4313-b987-0916a25c4a5e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_91ac472a-60a9-4339-8150-374f4b04abd5" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_664b2d80-1345-4b2a-8dd9-0c50595f2366" xlink:to="loc_srt_RangeAxis_91ac472a-60a9-4339-8150-374f4b04abd5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_91ac472a-60a9-4339-8150-374f4b04abd5_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_91ac472a-60a9-4339-8150-374f4b04abd5" xlink:to="loc_srt_RangeMember_91ac472a-60a9-4339-8150-374f4b04abd5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_7c028585-a62f-4d31-bde2-a3d306ccba39" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_91ac472a-60a9-4339-8150-374f4b04abd5" xlink:to="loc_srt_RangeMember_7c028585-a62f-4d31-bde2-a3d306ccba39" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_4c1ec92b-0431-4c72-aab8-fc346102ff85" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_7c028585-a62f-4d31-bde2-a3d306ccba39" xlink:to="loc_srt_MinimumMember_4c1ec92b-0431-4c72-aab8-fc346102ff85" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_58874982-92ea-475b-9457-8700a03678a6" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_7c028585-a62f-4d31-bde2-a3d306ccba39" xlink:to="loc_srt_MaximumMember_58874982-92ea-475b-9457-8700a03678a6" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/RestructuringActivitiesRestructuringAccrualSpendingandOtherActivityandAccrualBalanceRemainingDetails" xlink:type="simple" xlink:href="see-20230930.xsd#RestructuringActivitiesRestructuringAccrualSpendingandOtherActivityandAccrualBalanceRemainingDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/RestructuringActivitiesRestructuringAccrualSpendingandOtherActivityandAccrualBalanceRemainingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_1661700e-8be1-4698-b9f2-cd95ade7d486" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveRollForward_077c2070-6f80-450e-aede-b2d8372d5880" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringReserveRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_1661700e-8be1-4698-b9f2-cd95ade7d486" xlink:to="loc_us-gaap_RestructuringReserveRollForward_077c2070-6f80-450e-aede-b2d8372d5880" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_47d499cf-9fb1-4635-b6a3-3046a438adac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringReserve"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_077c2070-6f80-450e-aede-b2d8372d5880" xlink:to="loc_us-gaap_RestructuringReserve_47d499cf-9fb1-4635-b6a3-3046a438adac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveAccrualAdjustment1_4e42c58e-c919-4def-8d3a-d1e41c0440d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringReserveAccrualAdjustment1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_077c2070-6f80-450e-aede-b2d8372d5880" xlink:to="loc_us-gaap_RestructuringReserveAccrualAdjustment1_4e42c58e-c919-4def-8d3a-d1e41c0440d2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_dfe47273-dde1-49ca-b1fb-f3fdc9070065" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_077c2070-6f80-450e-aede-b2d8372d5880" xlink:to="loc_us-gaap_RestructuringCharges_dfe47273-dde1-49ca-b1fb-f3fdc9070065" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRestructuring_5047893b-fa68-4411-83c1-70028152c879" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRestructuring"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_077c2070-6f80-450e-aede-b2d8372d5880" xlink:to="loc_us-gaap_PaymentsForRestructuring_5047893b-fa68-4411-83c1-70028152c879" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveTranslationAdjustment_7b9e8f83-ef13-47b1-9034-1a496b3f3a3d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringReserveTranslationAdjustment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_077c2070-6f80-450e-aede-b2d8372d5880" xlink:to="loc_us-gaap_RestructuringReserveTranslationAdjustment_7b9e8f83-ef13-47b1-9034-1a496b3f3a3d" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_ca1c8a90-3aed-4b8d-85d0-e8ea2fe40ee2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringReserve"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiability_e7d00957-7fd0-4e9f-b192-3f441972a660" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_077c2070-6f80-450e-aede-b2d8372d5880" xlink:to="loc_us-gaap_OperatingLeaseLiability_e7d00957-7fd0-4e9f-b192-3f441972a660" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_57b8e315-276e-452f-bda7-84381df97df4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_1661700e-8be1-4698-b9f2-cd95ade7d486" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_57b8e315-276e-452f-bda7-84381df97df4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_a43eb3d1-62ad-4d86-a635-5768500f93f9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_57b8e315-276e-452f-bda7-84381df97df4" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_a43eb3d1-62ad-4d86-a635-5768500f93f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_a43eb3d1-62ad-4d86-a635-5768500f93f9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_a43eb3d1-62ad-4d86-a635-5768500f93f9" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_a43eb3d1-62ad-4d86-a635-5768500f93f9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_e2683dfe-ace0-4885-a897-a80abf98fd52" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_a43eb3d1-62ad-4d86-a635-5768500f93f9" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_e2683dfe-ace0-4885-a897-a80abf98fd52" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ContractTerminationsExcludingLeasesMember_fb288dde-5a78-45b5-bddc-5f2920f0246e" xlink:href="see-20230930.xsd#see_ContractTerminationsExcludingLeasesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_e2683dfe-ace0-4885-a897-a80abf98fd52" xlink:to="loc_see_ContractTerminationsExcludingLeasesMember_fb288dde-5a78-45b5-bddc-5f2920f0246e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractTerminationMember_c0934637-d4c2-4939-9771-0501779b6373" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractTerminationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_e2683dfe-ace0-4885-a897-a80abf98fd52" xlink:to="loc_us-gaap_ContractTerminationMember_c0934637-d4c2-4939-9771-0501779b6373" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DebtandCreditFacilitiesTotalDebtOutstandingDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DebtandCreditFacilitiesTotalDebtOutstandingDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DebtandCreditFacilitiesTotalDebtOutstandingDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_3224be95-c914-4480-8322-4b0423b9ee92" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_ShortTermBorrowings_3224be95-c914-4480-8322-4b0423b9ee92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_e6fa6c5f-cac4-413c-9352-4c45f5cd610a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_e6fa6c5f-cac4-413c-9352-4c45f5cd610a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtCurrent_6ef6f4c2-4cde-46c6-a275-b9f43a13a364" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_DebtCurrent_6ef6f4c2-4cde-46c6-a275-b9f43a13a364" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermLineOfCredit_a14a4dc4-d676-49bc-a606-2676c68a366e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermLineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_LongTermLineOfCredit_a14a4dc4-d676-49bc-a606-2676c68a366e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_7337baea-10c4-432f-b6bd-dc5aed63509e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_7337baea-10c4-432f-b6bd-dc5aed63509e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorLongTermNotes_b2d62cf1-05d0-4f5b-afce-e0d6da35bd5a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeniorLongTermNotes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_SeniorLongTermNotes_b2d62cf1-05d0-4f5b-afce-e0d6da35bd5a" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermDebtNoncurrent_af5823f0-08bd-44fd-9ffc-03895c34391b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_OtherLongTermDebtNoncurrent_af5823f0-08bd-44fd-9ffc-03895c34391b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_31580473-3050-4aa5-b9a1-fb929df5083b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_31580473-3050-4aa5-b9a1-fb929df5083b" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndCapitalLeaseObligations_72a3c475-8371-4485-8f1a-de010b03298b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_DebtAndCapitalLeaseObligations_72a3c475-8371-4485-8f1a-de010b03298b" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityCurrent_5693f99f-b9c8-44d6-9212-8e402aecdde0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeaseLiabilityCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_FinanceLeaseLiabilityCurrent_5693f99f-b9c8-44d6-9212-8e402aecdde0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_898a567b-511b-4d10-9876-18c5d6200332" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeaseLiabilityNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_FinanceLeaseLiabilityNoncurrent_898a567b-511b-4d10-9876-18c5d6200332" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3c036ebc-6f85-4ec8-80a3-b081f6feb84e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_3c036ebc-6f85-4ec8-80a3-b081f6feb84e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtWeightedAverageInterestRate_f6bfb34b-9de7-4e52-bb35-c068bf914ab6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_ShortTermDebtWeightedAverageInterestRate_f6bfb34b-9de7-4e52-bb35-c068bf914ab6" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtWeightedAverageInterestRate_3afe4b25-19f4-4315-ab56-eb12b92b4751" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_LongtermDebtWeightedAverageInterestRate_3afe4b25-19f4-4315-ab56-eb12b92b4751" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_dcdf69cc-27ee-4081-99eb-e9bc6de8e232" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_5639c219-1a1d-42ad-8c8c-bdd3f6d78666" xlink:to="loc_us-gaap_DebtInstrumentTable_dcdf69cc-27ee-4081-99eb-e9bc6de8e232" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_6afc0560-14ce-4158-8c2e-f097f11389d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_dcdf69cc-27ee-4081-99eb-e9bc6de8e232" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_6afc0560-14ce-4158-8c2e-f097f11389d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_6afc0560-14ce-4158-8c2e-f097f11389d2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_6afc0560-14ce-4158-8c2e-f097f11389d2" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_6afc0560-14ce-4158-8c2e-f097f11389d2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_432a43a5-54a3-4a58-9252-51065c7e503f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_6afc0560-14ce-4158-8c2e-f097f11389d2" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_432a43a5-54a3-4a58-9252-51065c7e503f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_f3177c0b-8344-415f-89a8-cc1df7458f6f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_432a43a5-54a3-4a58-9252-51065c7e503f" xlink:to="loc_us-gaap_LineOfCreditMember_f3177c0b-8344-415f-89a8-cc1df7458f6f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_359b0c71-d553-4e6a-91d4-c08c3a23b4d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_dcdf69cc-27ee-4081-99eb-e9bc6de8e232" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_359b0c71-d553-4e6a-91d4-c08c3a23b4d2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_359b0c71-d553-4e6a-91d4-c08c3a23b4d2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_359b0c71-d553-4e6a-91d4-c08c3a23b4d2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_359b0c71-d553-4e6a-91d4-c08c3a23b4d2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_2b02c8a7-1057-4d98-ba78-8610b643da42" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_359b0c71-d553-4e6a-91d4-c08c3a23b4d2" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_2b02c8a7-1057-4d98-ba78-8610b643da42" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_TermLoanADueMarch2027Member_1827e5e4-2b8a-4e3b-a30c-5bb65fda860f" xlink:href="see-20230930.xsd#see_TermLoanADueMarch2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_2b02c8a7-1057-4d98-ba78-8610b643da42" xlink:to="loc_see_TermLoanADueMarch2027Member_1827e5e4-2b8a-4e3b-a30c-5bb65fda860f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_7028b90e-2504-4557-b773-052f8da5277c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_dcdf69cc-27ee-4081-99eb-e9bc6de8e232" xlink:to="loc_us-gaap_DebtInstrumentAxis_7028b90e-2504-4557-b773-052f8da5277c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_7028b90e-2504-4557-b773-052f8da5277c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_7028b90e-2504-4557-b773-052f8da5277c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_7028b90e-2504-4557-b773-052f8da5277c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_7028b90e-2504-4557-b773-052f8da5277c" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FivePointOneTwoFivePercentageSeniorNotesDueDecemberTwoThousandAndTwentyFourMember_7bb6261d-10d8-426f-ac4d-068e7e642f89" xlink:href="see-20230930.xsd#see_FivePointOneTwoFivePercentageSeniorNotesDueDecemberTwoThousandAndTwentyFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:to="loc_see_FivePointOneTwoFivePercentageSeniorNotesDueDecemberTwoThousandAndTwentyFourMember_7bb6261d-10d8-426f-ac4d-068e7e642f89" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FivePointFivePercentSeniorNotesDueSeptemberTwoThousandTwentyFiveMember_9230272e-2d39-438e-aefe-1af7bef3800a" xlink:href="see-20230930.xsd#see_FivePointFivePercentSeniorNotesDueSeptemberTwoThousandTwentyFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:to="loc_see_FivePointFivePercentSeniorNotesDueSeptemberTwoThousandTwentyFiveMember_9230272e-2d39-438e-aefe-1af7bef3800a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A1573SeniorNotesDueOctober2026Member_e15f00b4-3702-4721-b94b-cfbf51eb914d" xlink:href="see-20230930.xsd#see_A1573SeniorNotesDueOctober2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:to="loc_see_A1573SeniorNotesDueOctober2026Member_e15f00b4-3702-4721-b94b-cfbf51eb914d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FourPointZeroZeroPercentSeniorNotesDueDecember2027Member_998cccb6-bec0-48d9-8449-c476aa6f242b" xlink:href="see-20230930.xsd#see_FourPointZeroZeroPercentSeniorNotesDueDecember2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:to="loc_see_FourPointZeroZeroPercentSeniorNotesDueDecember2027Member_998cccb6-bec0-48d9-8449-c476aa6f242b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A5000SeniorNotesDue2029Member_e4a31c93-3418-44af-919a-66334570a6ce" xlink:href="see-20230930.xsd#see_A5000SeniorNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:to="loc_see_A5000SeniorNotesDue2029Member_e4a31c93-3418-44af-919a-66334570a6ce" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A6125SeniorNotesDue2028Member_95d63546-2de3-4a10-aef5-a4a0d2996846" xlink:href="see-20230930.xsd#see_A6125SeniorNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:to="loc_see_A6125SeniorNotesDue2028Member_95d63546-2de3-4a10-aef5-a4a0d2996846" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_SixPointEightHundredSeventyFivePercentSeniorNotesDueJulyTwoThousandThirtyThreeMember_5f69a6e4-9c64-4179-983f-6920ab05a5a9" xlink:href="see-20230930.xsd#see_SixPointEightHundredSeventyFivePercentSeniorNotesDueJulyTwoThousandThirtyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:to="loc_see_SixPointEightHundredSeventyFivePercentSeniorNotesDueJulyTwoThousandThirtyThreeMember_5f69a6e4-9c64-4179-983f-6920ab05a5a9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember_36880621-ebdc-494c-850c-df07418a73df" xlink:href="see-20230930.xsd#see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f44512ac-aac4-499f-9927-1ab5fd8e914e" xlink:to="loc_see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember_36880621-ebdc-494c-850c-df07418a73df" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_fcd3de53-e25c-49b6-916d-b0bd56fc9e3f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_dcdf69cc-27ee-4081-99eb-e9bc6de8e232" xlink:to="loc_us-gaap_CreditFacilityAxis_fcd3de53-e25c-49b6-916d-b0bd56fc9e3f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_fcd3de53-e25c-49b6-916d-b0bd56fc9e3f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_fcd3de53-e25c-49b6-916d-b0bd56fc9e3f" xlink:to="loc_us-gaap_CreditFacilityDomain_fcd3de53-e25c-49b6-916d-b0bd56fc9e3f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_313f2990-12e1-408d-bbad-b9594c383ed3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_fcd3de53-e25c-49b6-916d-b0bd56fc9e3f" xlink:to="loc_us-gaap_CreditFacilityDomain_313f2990-12e1-408d-bbad-b9594c383ed3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_831c0fdd-e28e-4bc0-b9f4-39485fba16aa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_313f2990-12e1-408d-bbad-b9594c383ed3" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_831c0fdd-e28e-4bc0-b9f4-39485fba16aa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_RevolvingCreditFacilityVariousMember_2fe32dca-198a-468d-86c8-72b7c44bec9b" xlink:href="see-20230930.xsd#see_RevolvingCreditFacilityVariousMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_313f2990-12e1-408d-bbad-b9594c383ed3" xlink:to="loc_see_RevolvingCreditFacilityVariousMember_2fe32dca-198a-468d-86c8-72b7c44bec9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_6f25b603-adae-4f1e-9673-d88e5d484afa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_dcdf69cc-27ee-4081-99eb-e9bc6de8e232" xlink:to="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_6f25b603-adae-4f1e-9673-d88e5d484afa" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_6f25b603-adae-4f1e-9673-d88e5d484afa_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_6f25b603-adae-4f1e-9673-d88e5d484afa" xlink:to="loc_us-gaap_ReceivableTypeDomain_6f25b603-adae-4f1e-9673-d88e5d484afa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReceivableTypeDomain_d8c27b34-1278-401c-a829-d44f1a89c89f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReceivableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis_6f25b603-adae-4f1e-9673-d88e5d484afa" xlink:to="loc_us-gaap_ReceivableTypeDomain_d8c27b34-1278-401c-a829-d44f1a89c89f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_EuropeanAccountsReceivableSecuritizationProgramMember_0723c7e8-17c0-4888-97b5-2ea5be1d96b7" xlink:href="see-20230930.xsd#see_EuropeanAccountsReceivableSecuritizationProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_d8c27b34-1278-401c-a829-d44f1a89c89f" xlink:to="loc_see_EuropeanAccountsReceivableSecuritizationProgramMember_0723c7e8-17c0-4888-97b5-2ea5be1d96b7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_UnitedStatesAccountsReceivableSecuritizationProgramMember_184c8478-5fda-48bf-8981-17017388649a" xlink:href="see-20230930.xsd#see_UnitedStatesAccountsReceivableSecuritizationProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReceivableTypeDomain_d8c27b34-1278-401c-a829-d44f1a89c89f" xlink:to="loc_see_UnitedStatesAccountsReceivableSecuritizationProgramMember_184c8478-5fda-48bf-8981-17017388649a" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DebtandCreditFacilitiesSummaryofAvailableLinesofCreditDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DebtandCreditFacilitiesSummaryofAvailableLinesofCreditDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DebtandCreditFacilitiesSummaryofAvailableLinesofCreditDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_bf79cf80-9acb-4430-9141-3d7df5cbdf2f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCredit_48dce48b-629d-4d44-ad2a-3a7136884634" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_bf79cf80-9acb-4430-9141-3d7df5cbdf2f" xlink:to="loc_us-gaap_LineOfCredit_48dce48b-629d-4d44-ad2a-3a7136884634" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_32abb5ef-a6c5-413d-aaf9-e9a570ee8b5f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_bf79cf80-9acb-4430-9141-3d7df5cbdf2f" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_32abb5ef-a6c5-413d-aaf9-e9a570ee8b5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_2df65cf6-b9da-4a15-a8f9-4944473ff943" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_bf79cf80-9acb-4430-9141-3d7df5cbdf2f" xlink:to="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_2df65cf6-b9da-4a15-a8f9-4944473ff943" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_932c3777-0a8a-417c-9e04-a9c35eae12c0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_bf79cf80-9acb-4430-9141-3d7df5cbdf2f" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_932c3777-0a8a-417c-9e04-a9c35eae12c0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_9ce88fa1-a7b2-4d24-ac0e-baad4e160a97" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_932c3777-0a8a-417c-9e04-a9c35eae12c0" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_9ce88fa1-a7b2-4d24-ac0e-baad4e160a97" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_9ce88fa1-a7b2-4d24-ac0e-baad4e160a97_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_9ce88fa1-a7b2-4d24-ac0e-baad4e160a97" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_9ce88fa1-a7b2-4d24-ac0e-baad4e160a97_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_f6b8fd1a-8867-490a-a0f6-bd9940799a64" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_9ce88fa1-a7b2-4d24-ac0e-baad4e160a97" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_f6b8fd1a-8867-490a-a0f6-bd9940799a64" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_CommittedLineOfCreditFacilitiesMember_774ccc93-1d8a-422f-8cf2-23e33094ea23" xlink:href="see-20230930.xsd#see_CommittedLineOfCreditFacilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_f6b8fd1a-8867-490a-a0f6-bd9940799a64" xlink:to="loc_see_CommittedLineOfCreditFacilitiesMember_774ccc93-1d8a-422f-8cf2-23e33094ea23" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DebtandCreditFacilitiesAmendedandRestatedSeniorSecuredCreditFacilityDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DebtandCreditFacilitiesAmendedandRestatedSeniorSecuredCreditFacilityDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DebtandCreditFacilitiesAmendedandRestatedSeniorSecuredCreditFacilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtRestructuringCosts_6657efff-7649-438d-a9e2-3f1145724f15" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfDebtRestructuringCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_us-gaap_PaymentsOfDebtRestructuringCosts_6657efff-7649-438d-a9e2-3f1145724f15" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_14b23582-4145-4738-adda-531f4309c2e0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_14b23582-4145-4738-adda-531f4309c2e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_f106e121-580d-43d3-9276-e5df2835d80c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_f106e121-580d-43d3-9276-e5df2835d80c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_187e17e9-7b0e-4184-b358-2e39245df57a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_187e17e9-7b0e-4184-b358-2e39245df57a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_4156fce1-966a-41af-9c83-1b6740eb9659" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WriteOffOfDeferredDebtIssuanceCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_4156fce1-966a-41af-9c83-1b6740eb9659" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_DebtInstrumentNonLenderFees_82a21ed4-ab67-4c15-9258-4a68fa787a0e" xlink:href="see-20230930.xsd#see_DebtInstrumentNonLenderFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_see_DebtInstrumentNonLenderFees_82a21ed4-ab67-4c15-9258-4a68fa787a0e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PaymentOfLenderAndThirdPartyFees_4ad0b550-f32a-4a5a-b389-9b131b42ef33" xlink:href="see-20230930.xsd#see_PaymentOfLenderAndThirdPartyFees"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_see_PaymentOfLenderAndThirdPartyFees_4ad0b550-f32a-4a5a-b389-9b131b42ef33" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_ff36dde7-4ea6-4a53-bac9-60416c591171" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_ff36dde7-4ea6-4a53-bac9-60416c591171" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_cf859dae-bb73-4537-a017-d931d8a8ca3f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_7bdd9471-3fd8-44bd-b4c6-d600f615b8d5" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_cf859dae-bb73-4537-a017-d931d8a8ca3f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_b964efa8-af51-4652-878b-799a5433512e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_cf859dae-bb73-4537-a017-d931d8a8ca3f" xlink:to="loc_us-gaap_DebtInstrumentAxis_b964efa8-af51-4652-878b-799a5433512e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b964efa8-af51-4652-878b-799a5433512e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_b964efa8-af51-4652-878b-799a5433512e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b964efa8-af51-4652-878b-799a5433512e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_3b17f6f6-8ac7-4fce-9134-1cdbb6c9fceb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_b964efa8-af51-4652-878b-799a5433512e" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_3b17f6f6-8ac7-4fce-9134-1cdbb6c9fceb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FourthAmendedAndRestatedCreditAgreementMember_551bafff-ef3c-4683-b585-23a2e2e05d58" xlink:href="see-20230930.xsd#see_FourthAmendedAndRestatedCreditAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_3b17f6f6-8ac7-4fce-9134-1cdbb6c9fceb" xlink:to="loc_see_FourthAmendedAndRestatedCreditAgreementMember_551bafff-ef3c-4683-b585-23a2e2e05d58" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_250decb9-a98b-4133-9193-2667c476657f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_cf859dae-bb73-4537-a017-d931d8a8ca3f" xlink:to="loc_us-gaap_CreditFacilityAxis_250decb9-a98b-4133-9193-2667c476657f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_250decb9-a98b-4133-9193-2667c476657f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_250decb9-a98b-4133-9193-2667c476657f" xlink:to="loc_us-gaap_CreditFacilityDomain_250decb9-a98b-4133-9193-2667c476657f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_4fd71d61-e24e-409c-9f5c-574d91cd43cb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_250decb9-a98b-4133-9193-2667c476657f" xlink:to="loc_us-gaap_CreditFacilityDomain_4fd71d61-e24e-409c-9f5c-574d91cd43cb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_60d47dde-579d-4ee9-994b-9a39c821440d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_4fd71d61-e24e-409c-9f5c-574d91cd43cb" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_60d47dde-579d-4ee9-994b-9a39c821440d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_f63c974c-ae96-41d8-bebc-2b76ff605f2c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_cf859dae-bb73-4537-a017-d931d8a8ca3f" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_f63c974c-ae96-41d8-bebc-2b76ff605f2c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_f63c974c-ae96-41d8-bebc-2b76ff605f2c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_f63c974c-ae96-41d8-bebc-2b76ff605f2c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_f63c974c-ae96-41d8-bebc-2b76ff605f2c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_d69e6c6b-a5b4-4431-969d-88bc10f96910" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_f63c974c-ae96-41d8-bebc-2b76ff605f2c" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_d69e6c6b-a5b4-4431-969d-88bc10f96910" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_USTermLoanAFacilityMember_f0fd9327-9438-49cd-9107-841a5870f9d1" xlink:href="see-20230930.xsd#see_USTermLoanAFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_d69e6c6b-a5b4-4431-969d-88bc10f96910" xlink:to="loc_see_USTermLoanAFacilityMember_f0fd9327-9438-49cd-9107-841a5870f9d1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PoundSterlingTermLoanAFacilityMember_21c4f053-acc4-411c-aeb8-abb7df34e793" xlink:href="see-20230930.xsd#see_PoundSterlingTermLoanAFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_d69e6c6b-a5b4-4431-969d-88bc10f96910" xlink:to="loc_see_PoundSterlingTermLoanAFacilityMember_21c4f053-acc4-411c-aeb8-abb7df34e793" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_a111f0a2-b4aa-4d44-b381-4a61a867f3bf" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_cf859dae-bb73-4537-a017-d931d8a8ca3f" xlink:to="loc_srt_RangeAxis_a111f0a2-b4aa-4d44-b381-4a61a867f3bf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_a111f0a2-b4aa-4d44-b381-4a61a867f3bf_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_a111f0a2-b4aa-4d44-b381-4a61a867f3bf" xlink:to="loc_srt_RangeMember_a111f0a2-b4aa-4d44-b381-4a61a867f3bf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_196b1eca-c86e-4bd1-aa5f-9964f69b5785" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_a111f0a2-b4aa-4d44-b381-4a61a867f3bf" xlink:to="loc_srt_RangeMember_196b1eca-c86e-4bd1-aa5f-9964f69b5785" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_d8d12de0-37bf-4df2-bbd5-0180b2371c32" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_196b1eca-c86e-4bd1-aa5f-9964f69b5785" xlink:to="loc_srt_MinimumMember_d8d12de0-37bf-4df2-bbd5-0180b2371c32" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_7cee72d3-d4e9-467e-879a-24cd251a8126" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_196b1eca-c86e-4bd1-aa5f-9964f69b5785" xlink:to="loc_srt_MaximumMember_7cee72d3-d4e9-467e-879a-24cd251a8126" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateAxis_1c93246a-8a47-4b39-843e-0a4c4383020e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_cf859dae-bb73-4537-a017-d931d8a8ca3f" xlink:to="loc_us-gaap_VariableRateAxis_1c93246a-8a47-4b39-843e-0a4c4383020e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_1c93246a-8a47-4b39-843e-0a4c4383020e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_VariableRateAxis_1c93246a-8a47-4b39-843e-0a4c4383020e" xlink:to="loc_us-gaap_VariableRateDomain_1c93246a-8a47-4b39-843e-0a4c4383020e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableRateDomain_0c5a0932-1d25-43a9-b133-7822058f2ae4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableRateDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_VariableRateAxis_1c93246a-8a47-4b39-843e-0a4c4383020e" xlink:to="loc_us-gaap_VariableRateDomain_0c5a0932-1d25-43a9-b133-7822058f2ae4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_cbd68abf-dfc4-4413-959b-3da1331f6af7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_VariableRateDomain_0c5a0932-1d25-43a9-b133-7822058f2ae4" xlink:to="loc_us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember_cbd68abf-dfc4-4413-959b-3da1331f6af7" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DebtandCreditFacilitiesSeniorNotesDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DebtandCreditFacilitiesSeniorNotesDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DebtandCreditFacilitiesSeniorNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_5148310a-843b-4685-94dc-bc0620668e9c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_5148310a-843b-4685-94dc-bc0620668e9c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_1f18e62b-bafc-4fef-8110-7283f428fd6b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_1f18e62b-bafc-4fef-8110-7283f428fd6b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsGross_8860879e-f876-45c2-bdfc-15336889d374" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredFinanceCostsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DeferredFinanceCostsGross_8860879e-f876-45c2-bdfc-15336889d374" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_3c7b0b75-b207-4d5b-a46c-9bc13fbe4f2f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_3c7b0b75-b207-4d5b-a46c-9bc13fbe4f2f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_b55334cc-2cfd-45d8-a18a-963112820dcb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentageOfPrincipalAmountRedeemed_b55334cc-2cfd-45d8-a18a-963112820dcb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_1da8cec1-1266-4c91-9329-8938c3ee1fc1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_1da8cec1-1266-4c91-9329-8938c3ee1fc1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedPremium_f0d0da71-0795-4dca-9b59-23a535d02fa4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentUnamortizedPremium"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedPremium_f0d0da71-0795-4dca-9b59-23a535d02fa4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_b9503951-7e16-470f-8eef-2fb7290c6e32" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WriteOffOfDeferredDebtIssuanceCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_WriteOffOfDeferredDebtIssuanceCost_b9503951-7e16-470f-8eef-2fb7290c6e32" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchaseAmount_f6b9a2a4-f4e2-4b41-9ebd-f75d0bc2eb78" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRepurchaseAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DebtInstrumentRepurchaseAmount_f6b9a2a4-f4e2-4b41-9ebd-f75d0bc2eb78" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_b6c8c57c-fee9-4c78-9f7b-0c4459143288" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRepurchasedFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DebtInstrumentRepurchasedFaceAmount_b6c8c57c-fee9-4c78-9f7b-0c4459143288" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrentAndNoncurrent_aba7a949-76c3-4dd6-a4c7-cf012e016a7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestPayableCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_InterestPayableCurrentAndNoncurrent_aba7a949-76c3-4dd6-a4c7-cf012e016a7d" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_0b1a21bd-41bd-4cc9-86c7-a1a387cfe149" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_0d65f4d1-cc66-4ddf-aa71-11e1d189f398" xlink:to="loc_us-gaap_DebtInstrumentTable_0b1a21bd-41bd-4cc9-86c7-a1a387cfe149" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_85391aca-0b1f-4bcc-8241-4dfda3f5c018" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_0b1a21bd-41bd-4cc9-86c7-a1a387cfe149" xlink:to="loc_us-gaap_DebtInstrumentAxis_85391aca-0b1f-4bcc-8241-4dfda3f5c018" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_85391aca-0b1f-4bcc-8241-4dfda3f5c018_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_85391aca-0b1f-4bcc-8241-4dfda3f5c018" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_85391aca-0b1f-4bcc-8241-4dfda3f5c018_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b1000728-99d7-4524-bc15-82ab97d3939d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_85391aca-0b1f-4bcc-8241-4dfda3f5c018" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b1000728-99d7-4524-bc15-82ab97d3939d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A6125SeniorNotesDue2028Member_c3da26dc-c5f8-4c81-a29a-293da25e0257" xlink:href="see-20230930.xsd#see_A6125SeniorNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b1000728-99d7-4524-bc15-82ab97d3939d" xlink:to="loc_see_A6125SeniorNotesDue2028Member_c3da26dc-c5f8-4c81-a29a-293da25e0257" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember_cfa04236-5abd-48b5-9a59-6da4c0c86447" xlink:href="see-20230930.xsd#see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b1000728-99d7-4524-bc15-82ab97d3939d" xlink:to="loc_see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember_cfa04236-5abd-48b5-9a59-6da4c0c86447" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A5000SeniorNotesDue2029Member_13a1c74f-1e6c-4b59-afbb-7b7c1575e0c5" xlink:href="see-20230930.xsd#see_A5000SeniorNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b1000728-99d7-4524-bc15-82ab97d3939d" xlink:to="loc_see_A5000SeniorNotesDue2029Member_13a1c74f-1e6c-4b59-afbb-7b7c1575e0c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FivePointTwoFivePercentSeniorNotesDueAprilTwoThousandTwentyThreeMember_a31434fd-5236-45ee-aabf-414f124bb51d" xlink:href="see-20230930.xsd#see_FivePointTwoFivePercentSeniorNotesDueAprilTwoThousandTwentyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_b1000728-99d7-4524-bc15-82ab97d3939d" xlink:to="loc_see_FivePointTwoFivePercentSeniorNotesDueAprilTwoThousandTwentyThreeMember_a31434fd-5236-45ee-aabf-414f124bb51d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_da8208e3-768f-44f9-b465-c6ff22d87516" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_0b1a21bd-41bd-4cc9-86c7-a1a387cfe149" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_da8208e3-768f-44f9-b465-c6ff22d87516" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_da8208e3-768f-44f9-b465-c6ff22d87516_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_da8208e3-768f-44f9-b465-c6ff22d87516" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_da8208e3-768f-44f9-b465-c6ff22d87516_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_a6fa3a1a-62d6-4a96-8dc6-976181744581" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_da8208e3-768f-44f9-b465-c6ff22d87516" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_a6fa3a1a-62d6-4a96-8dc6-976181744581" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_9efcb803-5430-4e18-972b-dd14a5df9e33" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_a6fa3a1a-62d6-4a96-8dc6-976181744581" xlink:to="loc_us-gaap_SeniorNotesMember_9efcb803-5430-4e18-972b-dd14a5df9e33" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_0e4eca8d-3e41-41bb-b0ee-bccf44895fb2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRedemptionPeriodAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_0b1a21bd-41bd-4cc9-86c7-a1a387cfe149" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_0e4eca8d-3e41-41bb-b0ee-bccf44895fb2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_0e4eca8d-3e41-41bb-b0ee-bccf44895fb2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_0e4eca8d-3e41-41bb-b0ee-bccf44895fb2" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_0e4eca8d-3e41-41bb-b0ee-bccf44895fb2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_95f33ee2-ba95-44cc-99d2-192eab48c6f3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRedemptionPeriodDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodAxis_0e4eca8d-3e41-41bb-b0ee-bccf44895fb2" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_95f33ee2-ba95-44cc-99d2-192eab48c6f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_fbbe772a-ccdf-4803-be4c-906734a422a0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRedemptionPeriodOneMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_95f33ee2-ba95-44cc-99d2-192eab48c6f3" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodOneMember_fbbe772a-ccdf-4803-be4c-906734a422a0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_c76b8508-48f2-431d-9df6-e88f71aa04fd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentRedemptionPeriodTwoMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentRedemptionPeriodDomain_95f33ee2-ba95-44cc-99d2-192eab48c6f3" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPeriodTwoMember_c76b8508-48f2-431d-9df6-e88f71aa04fd" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DerivativesandHedgingActivitiesNarrativeDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DerivativesandHedgingActivitiesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DerivativesandHedgingActivitiesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MaximumRemainingMaturityOfForeignCurrencyDerivatives1_7dee8a30-9023-4e55-b338-609ed00f2048" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MaximumRemainingMaturityOfForeignCurrencyDerivatives1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_MaximumRemainingMaturityOfForeignCurrencyDerivatives1_7dee8a30-9023-4e55-b338-609ed00f2048" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_e8e903b7-130f-4b77-9c4e-8fd36e28f2b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_e8e903b7-130f-4b77-9c4e-8fd36e28f2b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred_d3526c4b-7d57-4939-a634-fd966f9cb82f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimatedNetAmountToBeTransferred_d3526c4b-7d57-4939-a634-fd966f9cb82f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNumberOfInstrumentsHeld_7d6d7682-5e61-42b2-9247-df5884ec1124" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeNumberOfInstrumentsHeld"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_DerivativeNumberOfInstrumentsHeld_7d6d7682-5e61-42b2-9247-df5884ec1124" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_2175fb13-681e-4dc7-b150-3b73513c7bf9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_2175fb13-681e-4dc7-b150-3b73513c7bf9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_6f562f18-605e-4296-bff9-de625aeb26b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_6f562f18-605e-4296-bff9-de625aeb26b8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount_ab114344-1331-4018-8425-74fcf075f629" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_DerivativeNotionalAmount_ab114344-1331-4018-8425-74fcf075f629" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_751715f9-a4f6-4713-87c3-03b13bae30aa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_DerivativeLiabilities_751715f9-a4f6-4713-87c3-03b13bae30aa" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_28f25db0-0316-46e0-a6c6-18538c8f92fc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_28f25db0-0316-46e0-a6c6-18538c8f92fc" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeTable_9ee5e96b-a1c5-4726-b655-8296d9e4f7ca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_49375e5e-5371-4ba4-b9e5-3ba427594e88" xlink:to="loc_us-gaap_DerivativeTable_9ee5e96b-a1c5-4726-b655-8296d9e4f7ca" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_fb0cb75d-340e-41d0-84bd-e94fa3e06198" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_9ee5e96b-a1c5-4726-b655-8296d9e4f7ca" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_fb0cb75d-340e-41d0-84bd-e94fa3e06198" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_fb0cb75d-340e-41d0-84bd-e94fa3e06198_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_fb0cb75d-340e-41d0-84bd-e94fa3e06198" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_fb0cb75d-340e-41d0-84bd-e94fa3e06198_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_1d32024a-0d98-4ab2-9048-f17f8f08f296" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_fb0cb75d-340e-41d0-84bd-e94fa3e06198" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_1d32024a-0d98-4ab2-9048-f17f8f08f296" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_56e1784e-304f-4366-80f3-6395496f5868" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_1d32024a-0d98-4ab2-9048-f17f8f08f296" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_56e1784e-304f-4366-80f3-6395496f5868" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestRateSwapMember_785391b0-4ba5-4df2-8740-0184c2f6b349" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestRateSwapMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_1d32024a-0d98-4ab2-9048-f17f8f08f296" xlink:to="loc_us-gaap_InterestRateSwapMember_785391b0-4ba5-4df2-8740-0184c2f6b349" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_EuroDenominatedDebtMember_6dbaf816-06a8-4db9-a831-099e22258153" xlink:href="see-20230930.xsd#see_EuroDenominatedDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_1d32024a-0d98-4ab2-9048-f17f8f08f296" xlink:to="loc_see_EuroDenominatedDebtMember_6dbaf816-06a8-4db9-a831-099e22258153" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_731b97d8-699e-49e1-87aa-f63d13bc565c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_1d32024a-0d98-4ab2-9048-f17f8f08f296" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_731b97d8-699e-49e1-87aa-f63d13bc565c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_35077911-7fbd-4f09-b293-cecb3f7088df" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_9ee5e96b-a1c5-4726-b655-8296d9e4f7ca" xlink:to="loc_us-gaap_HedgingDesignationAxis_35077911-7fbd-4f09-b293-cecb3f7088df" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_35077911-7fbd-4f09-b293-cecb3f7088df_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_35077911-7fbd-4f09-b293-cecb3f7088df" xlink:to="loc_us-gaap_HedgingDesignationDomain_35077911-7fbd-4f09-b293-cecb3f7088df_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_ee385712-c3df-4e8f-b23e-194070090966" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_35077911-7fbd-4f09-b293-cecb3f7088df" xlink:to="loc_us-gaap_HedgingDesignationDomain_ee385712-c3df-4e8f-b23e-194070090966" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_a99b3f9b-a52b-478e-bdca-672e82af2b48" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_ee385712-c3df-4e8f-b23e-194070090966" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_a99b3f9b-a52b-478e-bdca-672e82af2b48" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_fde69b52-876a-4e20-9619-bf3c32fd7ac5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_ee385712-c3df-4e8f-b23e-194070090966" xlink:to="loc_us-gaap_NondesignatedMember_fde69b52-876a-4e20-9619-bf3c32fd7ac5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_fdd42eb1-5b72-4ff5-8c3d-8d3f39385a55" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_9ee5e96b-a1c5-4726-b655-8296d9e4f7ca" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_fdd42eb1-5b72-4ff5-8c3d-8d3f39385a55" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_fdd42eb1-5b72-4ff5-8c3d-8d3f39385a55_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_fdd42eb1-5b72-4ff5-8c3d-8d3f39385a55" xlink:to="loc_us-gaap_HedgingRelationshipDomain_fdd42eb1-5b72-4ff5-8c3d-8d3f39385a55_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_67de8b32-6dff-4fce-8daf-f249443db607" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_fdd42eb1-5b72-4ff5-8c3d-8d3f39385a55" xlink:to="loc_us-gaap_HedgingRelationshipDomain_67de8b32-6dff-4fce-8daf-f249443db607" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_895d797e-a8ef-464b-967a-a480e5df8888" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetInvestmentHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_67de8b32-6dff-4fce-8daf-f249443db607" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_895d797e-a8ef-464b-967a-a480e5df8888" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_9bc3e4bd-f1c3-489b-87fc-213d2cfab0a0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_9ee5e96b-a1c5-4726-b655-8296d9e4f7ca" xlink:to="loc_us-gaap_DebtInstrumentAxis_9bc3e4bd-f1c3-489b-87fc-213d2cfab0a0" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_9bc3e4bd-f1c3-489b-87fc-213d2cfab0a0_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_9bc3e4bd-f1c3-489b-87fc-213d2cfab0a0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_9bc3e4bd-f1c3-489b-87fc-213d2cfab0a0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_005875e9-2dd8-4d6c-a749-664bbefac3b3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_9bc3e4bd-f1c3-489b-87fc-213d2cfab0a0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_005875e9-2dd8-4d6c-a749-664bbefac3b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember_60f15a64-2c4d-47f7-9050-36ef9b2fb8eb" xlink:href="see-20230930.xsd#see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_005875e9-2dd8-4d6c-a749-664bbefac3b3" xlink:to="loc_see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember_60f15a64-2c4d-47f7-9050-36ef9b2fb8eb" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DerivativesandHedgingActivitiesFairValueofDerivativeInstrumentsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DerivativesandHedgingActivitiesFairValueofDerivativeInstrumentsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DerivativesandHedgingActivitiesFairValueofDerivativeInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems_39f4da60-98b0-4c23-87ba-3b57b210bf19" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativesFairValueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_3fd4d633-c244-4726-8241-6e25ff30c4f5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_39f4da60-98b0-4c23-87ba-3b57b210bf19" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_3fd4d633-c244-4726-8241-6e25ff30c4f5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_a52cd49a-1ad7-44d5-b37d-58cf50624dbf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_39f4da60-98b0-4c23-87ba-3b57b210bf19" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_a52cd49a-1ad7-44d5-b37d-58cf50624dbf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_7e4670b5-08a3-4387-98b2-fbf67214e73d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_39f4da60-98b0-4c23-87ba-3b57b210bf19" xlink:to="loc_us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet_7e4670b5-08a3-4387-98b2-fbf67214e73d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_c9bfd05c-8584-4c26-8c4f-89b618474ae8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_39f4da60-98b0-4c23-87ba-3b57b210bf19" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_c9bfd05c-8584-4c26-8c4f-89b618474ae8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b7d60825-f3a0-4515-8329-86ffa69be7dc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativesFairValueLineItems_39f4da60-98b0-4c23-87ba-3b57b210bf19" xlink:to="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b7d60825-f3a0-4515-8329-86ffa69be7dc" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_38e5b16c-bfec-448a-9349-61213cfde540" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b7d60825-f3a0-4515-8329-86ffa69be7dc" xlink:to="loc_us-gaap_HedgingDesignationAxis_38e5b16c-bfec-448a-9349-61213cfde540" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_38e5b16c-bfec-448a-9349-61213cfde540_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_38e5b16c-bfec-448a-9349-61213cfde540" xlink:to="loc_us-gaap_HedgingDesignationDomain_38e5b16c-bfec-448a-9349-61213cfde540_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_59a3ffab-4608-4242-acea-14a1bfd0493e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_38e5b16c-bfec-448a-9349-61213cfde540" xlink:to="loc_us-gaap_HedgingDesignationDomain_59a3ffab-4608-4242-acea-14a1bfd0493e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_d6ba6198-e9aa-40b5-a771-630cd963cddb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_59a3ffab-4608-4242-acea-14a1bfd0493e" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_d6ba6198-e9aa-40b5-a771-630cd963cddb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_0aa7c19b-eb0d-45d1-b9f3-f778059e7a5b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_59a3ffab-4608-4242-acea-14a1bfd0493e" xlink:to="loc_us-gaap_NondesignatedMember_0aa7c19b-eb0d-45d1-b9f3-f778059e7a5b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_e306103e-cfd3-427a-a783-04146edb9403" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b7d60825-f3a0-4515-8329-86ffa69be7dc" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_e306103e-cfd3-427a-a783-04146edb9403" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_e306103e-cfd3-427a-a783-04146edb9403_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_e306103e-cfd3-427a-a783-04146edb9403" xlink:to="loc_us-gaap_HedgingRelationshipDomain_e306103e-cfd3-427a-a783-04146edb9403_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_e74daeee-4d85-4d27-803d-8e615f93d3b6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_e306103e-cfd3-427a-a783-04146edb9403" xlink:to="loc_us-gaap_HedgingRelationshipDomain_e74daeee-4d85-4d27-803d-8e615f93d3b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_103600d2-8ff2-4d08-a0c4-046feac4aa84" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_e74daeee-4d85-4d27-803d-8e615f93d3b6" xlink:to="loc_us-gaap_CashFlowHedgingMember_103600d2-8ff2-4d08-a0c4-046feac4aa84" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_7c8f0e0b-53bb-4d5f-ba74-34b238f1fb8a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetInvestmentHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_e74daeee-4d85-4d27-803d-8e615f93d3b6" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_7c8f0e0b-53bb-4d5f-ba74-34b238f1fb8a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_6b6badda-92af-4a96-a6f2-58eaf9b511a6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_b7d60825-f3a0-4515-8329-86ffa69be7dc" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_6b6badda-92af-4a96-a6f2-58eaf9b511a6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_6b6badda-92af-4a96-a6f2-58eaf9b511a6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_6b6badda-92af-4a96-a6f2-58eaf9b511a6" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_6b6badda-92af-4a96-a6f2-58eaf9b511a6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_304db064-dd45-4f83-808e-61bb2f775d9e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_6b6badda-92af-4a96-a6f2-58eaf9b511a6" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_304db064-dd45-4f83-808e-61bb2f775d9e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_2aadd25a-715f-4cd5-b5c4-02b0084248a1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_304db064-dd45-4f83-808e-61bb2f775d9e" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_2aadd25a-715f-4cd5-b5c4-02b0084248a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_3d6ac434-b714-4c70-97f7-7d4c373eec4e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_304db064-dd45-4f83-808e-61bb2f775d9e" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_3d6ac434-b714-4c70-97f7-7d4c373eec4e" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DerivativesandHedgingActivitiesOffsettingAssetsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DerivativesandHedgingActivitiesOffsettingAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DerivativesandHedgingActivitiesOffsettingAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffsettingAssetsLineItems_016d32fd-62a1-4c93-8e29-7c2300ea9999" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OffsettingAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_e18a8888-1d8b-4733-96c2-f22f1f5dada8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeFairValueOfDerivativeAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingAssetsLineItems_016d32fd-62a1-4c93-8e29-7c2300ea9999" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeAsset_e18a8888-1d8b-4733-96c2-f22f1f5dada8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetNotSubjectToMasterNettingArrangementDeduction_080ede4a-7f74-4ccf-b47a-a1cbaca6c0ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeAssetNotSubjectToMasterNettingArrangementDeduction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingAssetsLineItems_016d32fd-62a1-4c93-8e29-7c2300ea9999" xlink:to="loc_us-gaap_DerivativeAssetNotSubjectToMasterNettingArrangementDeduction_080ede4a-7f74-4ccf-b47a-a1cbaca6c0ce" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_fc086a3d-93cd-4289-ae9a-976653124eda" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingAssetsLineItems_016d32fd-62a1-4c93-8e29-7c2300ea9999" xlink:to="loc_us-gaap_DerivativeAssets_fc086a3d-93cd-4289-ae9a-976653124eda" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffsettingAssetsTable_34694e77-e384-49d5-98e5-9c710c62d5d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OffsettingAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OffsettingAssetsLineItems_016d32fd-62a1-4c93-8e29-7c2300ea9999" xlink:to="loc_us-gaap_OffsettingAssetsTable_34694e77-e384-49d5-98e5-9c710c62d5d4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_bb20084b-77c4-4e90-973c-2efc4de1f575" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OffsettingAssetsTable_34694e77-e384-49d5-98e5-9c710c62d5d4" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_bb20084b-77c4-4e90-973c-2efc4de1f575" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_bb20084b-77c4-4e90-973c-2efc4de1f575_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_bb20084b-77c4-4e90-973c-2efc4de1f575" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_bb20084b-77c4-4e90-973c-2efc4de1f575_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_674c8485-9ea9-4398-b982-8d8f53dfc855" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_bb20084b-77c4-4e90-973c-2efc4de1f575" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_674c8485-9ea9-4398-b982-8d8f53dfc855" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCurrentAssetsMember_c5ee3c76-be3a-4442-b99e-329aa30e6f1f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCurrentAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_674c8485-9ea9-4398-b982-8d8f53dfc855" xlink:to="loc_us-gaap_OtherCurrentAssetsMember_c5ee3c76-be3a-4442-b99e-329aa30e6f1f" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DerivativesandHedgingActivitiesOffsettingLiabilitiesDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DerivativesandHedgingActivitiesOffsettingLiabilitiesDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DerivativesandHedgingActivitiesOffsettingLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffsettingLiabilitiesLineItems_5644b75c-5ed2-4915-9073-eabe793f24ab" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OffsettingLiabilitiesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_23448b29-e265-484b-923d-bdbe9e25ead8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeFairValueOfDerivativeLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingLiabilitiesLineItems_5644b75c-5ed2-4915-9073-eabe793f24ab" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeLiability_23448b29-e265-484b-923d-bdbe9e25ead8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangementDeduction_e8889d66-2dec-450e-94b8-680aadcedd3a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangementDeduction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingLiabilitiesLineItems_5644b75c-5ed2-4915-9073-eabe793f24ab" xlink:to="loc_us-gaap_DerivativeLiabilityNotSubjectToMasterNettingArrangementDeduction_e8889d66-2dec-450e-94b8-680aadcedd3a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_bf726f27-bf79-44a6-8641-9df9907638f6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OffsettingLiabilitiesLineItems_5644b75c-5ed2-4915-9073-eabe793f24ab" xlink:to="loc_us-gaap_DerivativeLiabilities_bf726f27-bf79-44a6-8641-9df9907638f6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OffsettingLiabilitiesTable_9ea99ef1-12b0-48f1-b29b-8f4830220b80" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OffsettingLiabilitiesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_OffsettingLiabilitiesLineItems_5644b75c-5ed2-4915-9073-eabe793f24ab" xlink:to="loc_us-gaap_OffsettingLiabilitiesTable_9ea99ef1-12b0-48f1-b29b-8f4830220b80" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_6c03eeea-f721-4f97-ab23-ef550fae310f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_OffsettingLiabilitiesTable_9ea99ef1-12b0-48f1-b29b-8f4830220b80" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_6c03eeea-f721-4f97-ab23-ef550fae310f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_6c03eeea-f721-4f97-ab23-ef550fae310f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_6c03eeea-f721-4f97-ab23-ef550fae310f" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_6c03eeea-f721-4f97-ab23-ef550fae310f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_2a33b360-a720-4b1e-bb32-8e55ff7fb1c0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_6c03eeea-f721-4f97-ab23-ef550fae310f" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_2a33b360-a720-4b1e-bb32-8e55ff7fb1c0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCurrentLiabilitiesMember_24bc2d58-8c64-44bb-8588-434c8f889af5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_2a33b360-a720-4b1e-bb32-8e55ff7fb1c0" xlink:to="loc_us-gaap_OtherCurrentLiabilitiesMember_24bc2d58-8c64-44bb-8588-434c8f889af5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentLiabilitiesMember_e9f0cc8b-600e-4261-98d1-7c4b1386db76" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNoncurrentLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_2a33b360-a720-4b1e-bb32-8e55ff7fb1c0" xlink:to="loc_us-gaap_OtherNoncurrentLiabilitiesMember_e9f0cc8b-600e-4261-98d1-7c4b1386db76" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DerivativesandHedgingActivitiesEffectofDerivativeInstrumentsonCondensedConsolidatedStatementsofOperationsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DerivativesandHedgingActivitiesEffectofDerivativeInstrumentsonCondensedConsolidatedStatementsofOperationsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DerivativesandHedgingActivitiesEffectofDerivativeInstrumentsonCondensedConsolidatedStatementsofOperationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_2470f8a8-2d33-4010-8e3e-5436b683323f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeGainLossOnDerivativeNet_8b4bace7-91a4-4ce0-877b-94ff60f818d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeGainLossOnDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_2470f8a8-2d33-4010-8e3e-5436b683323f" xlink:to="loc_us-gaap_DerivativeGainLossOnDerivativeNet_8b4bace7-91a4-4ce0-877b-94ff60f818d9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ff9843e8-bb6c-4551-8d18-524fbd578865" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_2470f8a8-2d33-4010-8e3e-5436b683323f" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ff9843e8-bb6c-4551-8d18-524fbd578865" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_d3bcd9ea-11d1-43c4-84cc-377b2d050074" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ff9843e8-bb6c-4551-8d18-524fbd578865" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_d3bcd9ea-11d1-43c4-84cc-377b2d050074" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_d3bcd9ea-11d1-43c4-84cc-377b2d050074_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_d3bcd9ea-11d1-43c4-84cc-377b2d050074" xlink:to="loc_us-gaap_HedgingRelationshipDomain_d3bcd9ea-11d1-43c4-84cc-377b2d050074_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_e3030c31-4680-4331-b22d-9298d1663fb8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_d3bcd9ea-11d1-43c4-84cc-377b2d050074" xlink:to="loc_us-gaap_HedgingRelationshipDomain_e3030c31-4680-4331-b22d-9298d1663fb8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_b3645733-bcae-4c6d-8bb4-87f44dcad344" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_e3030c31-4680-4331-b22d-9298d1663fb8" xlink:to="loc_us-gaap_CashFlowHedgingMember_b3645733-bcae-4c6d-8bb4-87f44dcad344" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationAxis_0d613ff7-00d6-4a05-8241-9a787080d263" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ff9843e8-bb6c-4551-8d18-524fbd578865" xlink:to="loc_us-gaap_HedgingDesignationAxis_0d613ff7-00d6-4a05-8241-9a787080d263" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_0d613ff7-00d6-4a05-8241-9a787080d263_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_0d613ff7-00d6-4a05-8241-9a787080d263" xlink:to="loc_us-gaap_HedgingDesignationDomain_0d613ff7-00d6-4a05-8241-9a787080d263_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain_7de41a2b-4017-4dcf-a77a-82b45f843e0f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_0d613ff7-00d6-4a05-8241-9a787080d263" xlink:to="loc_us-gaap_HedgingDesignationDomain_7de41a2b-4017-4dcf-a77a-82b45f843e0f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_ec133da8-88e7-4868-8e80-5e1f9b4be743" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DesignatedAsHedgingInstrumentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_7de41a2b-4017-4dcf-a77a-82b45f843e0f" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_ec133da8-88e7-4868-8e80-5e1f9b4be743" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NondesignatedMember_a8573ca6-ea54-4d58-a237-f26e9784fecf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NondesignatedMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_7de41a2b-4017-4dcf-a77a-82b45f843e0f" xlink:to="loc_us-gaap_NondesignatedMember_a8573ca6-ea54-4d58-a237-f26e9784fecf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_f193e211-a2a7-4594-9ca6-0bb86c3acfb4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipByIncomeStatementLocationByDerivativeInstrumentRiskTable_ff9843e8-bb6c-4551-8d18-524fbd578865" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_f193e211-a2a7-4594-9ca6-0bb86c3acfb4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_f193e211-a2a7-4594-9ca6-0bb86c3acfb4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_f193e211-a2a7-4594-9ca6-0bb86c3acfb4" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_f193e211-a2a7-4594-9ca6-0bb86c3acfb4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_1e4faa49-0b45-4950-a507-769cd325afe9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_f193e211-a2a7-4594-9ca6-0bb86c3acfb4" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_1e4faa49-0b45-4950-a507-769cd325afe9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_ef8fef12-3f19-4cf2-af93-d242ae3784da" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_1e4faa49-0b45-4950-a507-769cd325afe9" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_ef8fef12-3f19-4cf2-af93-d242ae3784da" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryLockMember_bbf114b0-c77a-4a57-b4ca-0b4521c8f73e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryLockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_1e4faa49-0b45-4950-a507-769cd325afe9" xlink:to="loc_us-gaap_TreasuryLockMember_bbf114b0-c77a-4a57-b4ca-0b4521c8f73e" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsFairValueHierarchyofFinancialInstrumentsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsFairValueHierarchyofFinancialInstrumentsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsFairValueHierarchyofFinancialInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_806f1a41-db97-4bdb-af7b-330a300c2261" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_2ed157da-7842-435a-9a75-6e7c788edf0b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_806f1a41-db97-4bdb-af7b-330a300c2261" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_2ed157da-7842-435a-9a75-6e7c788edf0b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFairValueOfDerivativeNet_18c4fe16-93c8-46fc-abac-b2e9d2104ebc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeFairValueOfDerivativeNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_806f1a41-db97-4bdb-af7b-330a300c2261" xlink:to="loc_us-gaap_DerivativeFairValueOfDerivativeNet_18c4fe16-93c8-46fc-abac-b2e9d2104ebc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_53f4ea2c-a5a5-4f66-a179-87eae85c84d9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_806f1a41-db97-4bdb-af7b-330a300c2261" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_53f4ea2c-a5a5-4f66-a179-87eae85c84d9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_c2bf73a4-6374-48f3-9d37-102c4a10cc08" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_53f4ea2c-a5a5-4f66-a179-87eae85c84d9" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_c2bf73a4-6374-48f3-9d37-102c4a10cc08" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_c2bf73a4-6374-48f3-9d37-102c4a10cc08_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_c2bf73a4-6374-48f3-9d37-102c4a10cc08" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_c2bf73a4-6374-48f3-9d37-102c4a10cc08_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9f47085b-1208-4a58-ab4e-2d9438a49a44" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_c2bf73a4-6374-48f3-9d37-102c4a10cc08" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9f47085b-1208-4a58-ab4e-2d9438a49a44" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_877a9af7-9d0e-43c4-be0c-12a74946a828" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9f47085b-1208-4a58-ab4e-2d9438a49a44" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_877a9af7-9d0e-43c4-be0c-12a74946a828" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_64128396-f9ef-4d95-8e7d-9a2cbc388f8c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9f47085b-1208-4a58-ab4e-2d9438a49a44" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_64128396-f9ef-4d95-8e7d-9a2cbc388f8c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_ef959dbe-206c-453f-83e8-9999b5ea4d1b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_9f47085b-1208-4a58-ab4e-2d9438a49a44" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_ef959dbe-206c-453f-83e8-9999b5ea4d1b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_89f3ff1c-e27c-4ceb-94d5-090accc78cd1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_53f4ea2c-a5a5-4f66-a179-87eae85c84d9" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_89f3ff1c-e27c-4ceb-94d5-090accc78cd1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_89f3ff1c-e27c-4ceb-94d5-090accc78cd1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_89f3ff1c-e27c-4ceb-94d5-090accc78cd1" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_89f3ff1c-e27c-4ceb-94d5-090accc78cd1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_1e7dd0df-373a-46d7-9834-ae7bebb49d7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_89f3ff1c-e27c-4ceb-94d5-090accc78cd1" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_1e7dd0df-373a-46d7-9834-ae7bebb49d7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_167c0a09-0729-4d82-8665-bc0bebaf971c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_1e7dd0df-373a-46d7-9834-ae7bebb49d7d" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_167c0a09-0729-4d82-8665-bc0bebaf971c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CrossCurrencyInterestRateContractMember_e0c56c9d-2e8c-4959-a29f-b05e10851ae5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CrossCurrencyInterestRateContractMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_1e7dd0df-373a-46d7-9834-ae7bebb49d7d" xlink:to="loc_us-gaap_CrossCurrencyInterestRateContractMember_e0c56c9d-2e8c-4959-a29f-b05e10851ae5" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsEquityInvestmentWithoutReadilyDeterminableFairValueNarrativeDetails" xlink:type="simple" xlink:href="see-20230930.xsd#FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsEquityInvestmentWithoutReadilyDeterminableFairValueNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsEquityInvestmentWithoutReadilyDeterminableFairValueNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_129a94c7-d466-4abc-84a0-418b4b50a24b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_129a94c7-d466-4abc-84a0-418b4b50a24b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireInvestments_6f433bdd-0c45-4f4a-a941-30e70ecd1619" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:to="loc_us-gaap_PaymentsToAcquireInvestments_6f433bdd-0c45-4f4a-a941-30e70ecd1619" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount_c6ee008e-1f11-4775-9ad7-98e475aa5b42" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentAnnualAmount_c6ee008e-1f11-4775-9ad7-98e475aa5b42" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount_309a07c3-ff16-4776-9883-c2654b8933cf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentAnnualAmount_309a07c3-ff16-4776-9883-c2654b8933cf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount_ab989b8c-512f-4b4a-909f-d7701f851aac" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmount_ab989b8c-512f-4b4a-909f-d7701f851aac" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount_f1223e6b-c103-423b-a312-80582357adcb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueDownwardPriceAdjustmentCumulativeAmount_f1223e6b-c103-423b-a312-80582357adcb" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmountNetOfDownwardAdjustments_503d2f8e-826b-4f63-b0f9-21a16b433347" xlink:href="see-20230930.xsd#see_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmountNetOfDownwardAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:to="loc_see_EquitySecuritiesWithoutReadilyDeterminableFairValueUpwardPriceAdjustmentCumulativeAmountNetOfDownwardAdjustments_503d2f8e-826b-4f63-b0f9-21a16b433347" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_58236b45-f091-4a12-9040-2f8172a76097" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_4a875aa0-c478-4876-958a-07d476faa812" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_58236b45-f091-4a12-9040-2f8172a76097" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeAxis_ee0b509e-9568-408f-b744-23f61e41cdde" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_58236b45-f091-4a12-9040-2f8172a76097" xlink:to="loc_us-gaap_InvestmentTypeAxis_ee0b509e-9568-408f-b744-23f61e41cdde" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_ee0b509e-9568-408f-b744-23f61e41cdde_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_ee0b509e-9568-408f-b744-23f61e41cdde" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_ee0b509e-9568-408f-b744-23f61e41cdde_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_7f99200b-bb27-4c91-add0-f8da752f166a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentTypeCategorizationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_ee0b509e-9568-408f-b744-23f61e41cdde" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_7f99200b-bb27-4c91-add0-f8da752f166a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesMember_53d67720-d0aa-48bc-8494-035931e421df" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquitySecuritiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_7f99200b-bb27-4c91-add0-f8da752f166a" xlink:to="loc_us-gaap_EquitySecuritiesMember_53d67720-d0aa-48bc-8494-035931e421df" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsCarryingAmountsandEstimatedFairValuesofDebtDetails" xlink:type="simple" xlink:href="see-20230930.xsd#FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsCarryingAmountsandEstimatedFairValuesofDebtDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/FairValueMeasurementsEquityInvestmentsandOtherFinancialInstrumentsCarryingAmountsandEstimatedFairValuesofDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_e392fd3e-5e10-4310-9499-ab0b1aa86deb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_d55f3789-d6f1-4dd7-9a14-fad203b8eac7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_e392fd3e-5e10-4310-9499-ab0b1aa86deb" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_d55f3789-d6f1-4dd7-9a14-fad203b8eac7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableFairValueDisclosure_294e7a21-ba4f-4fa2-90ba-221cc65827c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayableFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_e392fd3e-5e10-4310-9499-ab0b1aa86deb" xlink:to="loc_us-gaap_NotesPayableFairValueDisclosure_294e7a21-ba4f-4fa2-90ba-221cc65827c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_OtherForeignLoansFairValueDisclosure_54366fa2-9781-4452-b4e6-1c5ccda32c92" xlink:href="see-20230930.xsd#see_OtherForeignLoansFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_e392fd3e-5e10-4310-9499-ab0b1aa86deb" xlink:to="loc_see_OtherForeignLoansFairValueDisclosure_54366fa2-9781-4452-b4e6-1c5ccda32c92" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_OtherDomesticLoansFairValueDisclosure_a1a25178-cb87-47f8-bc1c-4dc8f39f4e05" xlink:href="see-20230930.xsd#see_OtherDomesticLoansFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_e392fd3e-5e10-4310-9499-ab0b1aa86deb" xlink:to="loc_see_OtherDomesticLoansFairValueDisclosure_a1a25178-cb87-47f8-bc1c-4dc8f39f4e05" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_a3b09d3f-0288-450d-ad96-18b534ca7f84" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_e392fd3e-5e10-4310-9499-ab0b1aa86deb" xlink:to="loc_us-gaap_DebtInstrumentFairValue_a3b09d3f-0288-450d-ad96-18b534ca7f84" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_8bf84087-fb57-4c3a-a690-08e236cef134" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_e392fd3e-5e10-4310-9499-ab0b1aa86deb" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_8bf84087-fb57-4c3a-a690-08e236cef134" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_cdc73cdb-646b-4d79-857a-2ad3e296c18a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_8bf84087-fb57-4c3a-a690-08e236cef134" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_cdc73cdb-646b-4d79-857a-2ad3e296c18a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_cdc73cdb-646b-4d79-857a-2ad3e296c18a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_cdc73cdb-646b-4d79-857a-2ad3e296c18a" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_cdc73cdb-646b-4d79-857a-2ad3e296c18a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_3d39e06b-9c19-4482-8722-71ecdeacb92c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_cdc73cdb-646b-4d79-857a-2ad3e296c18a" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_3d39e06b-9c19-4482-8722-71ecdeacb92c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_d904dc9e-5de8-4405-b26d-e6bb490bd766" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_3d39e06b-9c19-4482-8722-71ecdeacb92c" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_d904dc9e-5de8-4405-b26d-e6bb490bd766" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_e707f74d-58af-4d69-ab27-fb42a314d43f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_d904dc9e-5de8-4405-b26d-e6bb490bd766" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_e707f74d-58af-4d69-ab27-fb42a314d43f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_174e30fd-019d-4368-9a53-ab558ed268ea" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_d904dc9e-5de8-4405-b26d-e6bb490bd766" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_174e30fd-019d-4368-9a53-ab558ed268ea" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_e2e75d69-3b5e-4e58-bc9f-16c45037b68e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_8bf84087-fb57-4c3a-a690-08e236cef134" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_e2e75d69-3b5e-4e58-bc9f-16c45037b68e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_e2e75d69-3b5e-4e58-bc9f-16c45037b68e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_e2e75d69-3b5e-4e58-bc9f-16c45037b68e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_e2e75d69-3b5e-4e58-bc9f-16c45037b68e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_bb625f6d-4b72-4d90-84f1-25874d1c3875" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_e2e75d69-3b5e-4e58-bc9f-16c45037b68e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_bb625f6d-4b72-4d90-84f1-25874d1c3875" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_TermLoanADueMarch2027Member_e96fab10-2ff9-4c4c-a398-1f4aeec8aafd" xlink:href="see-20230930.xsd#see_TermLoanADueMarch2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_bb625f6d-4b72-4d90-84f1-25874d1c3875" xlink:to="loc_see_TermLoanADueMarch2027Member_e96fab10-2ff9-4c4c-a398-1f4aeec8aafd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_b368acd8-894e-4b07-af5d-d824345db8d5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_8bf84087-fb57-4c3a-a690-08e236cef134" xlink:to="loc_us-gaap_DebtInstrumentAxis_b368acd8-894e-4b07-af5d-d824345db8d5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_b368acd8-894e-4b07-af5d-d824345db8d5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_b368acd8-894e-4b07-af5d-d824345db8d5" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_b368acd8-894e-4b07-af5d-d824345db8d5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_b368acd8-894e-4b07-af5d-d824345db8d5" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember_784dafaa-c9bc-49ca-980f-9058152a76d8" xlink:href="see-20230930.xsd#see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:to="loc_see_FourPointFivePercentSeniorNotesDueSeptemberTwoThousandAndTwentyThreeMember_784dafaa-c9bc-49ca-980f-9058152a76d8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FivePointOneTwoFivePercentageSeniorNotesDueDecemberTwoThousandAndTwentyFourMember_a672bcf4-e1b4-434c-ac3b-fe1a01a3d90f" xlink:href="see-20230930.xsd#see_FivePointOneTwoFivePercentageSeniorNotesDueDecemberTwoThousandAndTwentyFourMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:to="loc_see_FivePointOneTwoFivePercentageSeniorNotesDueDecemberTwoThousandAndTwentyFourMember_a672bcf4-e1b4-434c-ac3b-fe1a01a3d90f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FivePointFivePercentSeniorNotesDueSeptemberTwoThousandTwentyFiveMember_84fd064d-7c81-4e75-ac73-3c83ddfa2dc4" xlink:href="see-20230930.xsd#see_FivePointFivePercentSeniorNotesDueSeptemberTwoThousandTwentyFiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:to="loc_see_FivePointFivePercentSeniorNotesDueSeptemberTwoThousandTwentyFiveMember_84fd064d-7c81-4e75-ac73-3c83ddfa2dc4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A1573SeniorNotesDueOctober2026Member_f348cfd8-d7f1-46ae-8cd5-352a0b9f7d1c" xlink:href="see-20230930.xsd#see_A1573SeniorNotesDueOctober2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:to="loc_see_A1573SeniorNotesDueOctober2026Member_f348cfd8-d7f1-46ae-8cd5-352a0b9f7d1c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FourPointZeroZeroPercentSeniorNotesDueDecember2027Member_0f754611-8cff-4ea6-acb0-fd9e7732f802" xlink:href="see-20230930.xsd#see_FourPointZeroZeroPercentSeniorNotesDueDecember2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:to="loc_see_FourPointZeroZeroPercentSeniorNotesDueDecember2027Member_0f754611-8cff-4ea6-acb0-fd9e7732f802" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A6125SeniorNotesDue2028Member_075244af-3be7-45c6-a6be-bfd9563eadd2" xlink:href="see-20230930.xsd#see_A6125SeniorNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:to="loc_see_A6125SeniorNotesDue2028Member_075244af-3be7-45c6-a6be-bfd9563eadd2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A5000SeniorNotesDue2029Member_b26b1148-bcb7-4077-b08f-8cc688a174de" xlink:href="see-20230930.xsd#see_A5000SeniorNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:to="loc_see_A5000SeniorNotesDue2029Member_b26b1148-bcb7-4077-b08f-8cc688a174de" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_SixPointEightHundredSeventyFivePercentSeniorNotesDueJulyTwoThousandThirtyThreeMember_97e8322c-ceaa-48d3-9052-57ab5e2882e9" xlink:href="see-20230930.xsd#see_SixPointEightHundredSeventyFivePercentSeniorNotesDueJulyTwoThousandThirtyThreeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_46f4f6c0-dbe3-450d-b3e0-dd3ef967c75b" xlink:to="loc_see_SixPointEightHundredSeventyFivePercentSeniorNotesDueJulyTwoThousandThirtyThreeMember_97e8322c-ceaa-48d3-9052-57ab5e2882e9" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DefinedBenefitPensionPlansandOtherPostEmploymentBenefitPlansComponentsofNetPeriodicBenefitCostIncomeforDefinedBenefitPensionPlansDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DefinedBenefitPensionPlansandOtherPostEmploymentBenefitPlansComponentsofNetPeriodicBenefitCostIncomeforDefinedBenefitPensionPlansDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DefinedBenefitPensionPlansandOtherPostEmploymentBenefitPlansComponentsofNetPeriodicBenefitCostIncomeforDefinedBenefitPensionPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_684c7d67-762c-4dba-9548-fb60a437e78c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_684c7d67-762c-4dba-9548-fb60a437e78c" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_57e4fce9-73f7-468f-b08a-ed83fcb3a3e4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_57e4fce9-73f7-468f-b08a-ed83fcb3a3e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_d4ba98c5-41f1-47ba-ac7c-b4fa13a06de9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_d4ba98c5-41f1-47ba-ac7c-b4fa13a06de9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_d2006933-c7d5-4bdc-b252-f7c3bea81211" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_d2006933-c7d5-4bdc-b252-f7c3bea81211" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_88bfaa63-89b9-4e29-8635-e9afb09e0945" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_88bfaa63-89b9-4e29-8635-e9afb09e0945" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5f30c590-8fdf-483a-bb9e-e416ec675d88" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_5f30c590-8fdf-483a-bb9e-e416ec675d88" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_DefinedBenefitPlanNetPeriodicBenefitCostIncomeCreditExcludingSettlementsAndCurtailments_387f100b-ac37-4484-bc3f-2a5a7f3e03e7" xlink:href="see-20230930.xsd#see_DefinedBenefitPlanNetPeriodicBenefitCostIncomeCreditExcludingSettlementsAndCurtailments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:to="loc_see_DefinedBenefitPlanNetPeriodicBenefitCostIncomeCreditExcludingSettlementsAndCurtailments_387f100b-ac37-4484-bc3f-2a5a7f3e03e7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1_7bee865d-be79-4f3e-ae76-4b0b7db58367" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlementsAndCurtailments1_7bee865d-be79-4f3e-ae76-4b0b7db58367" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_508142ef-9f10-4532-8756-5836f1aaaccb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_56259e79-0279-49f3-ab9d-2118c6b86752" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_508142ef-9f10-4532-8756-5836f1aaaccb" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bde82b65-7996-408b-bd99-4bfde39529e7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_684c7d67-762c-4dba-9548-fb60a437e78c" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bde82b65-7996-408b-bd99-4bfde39529e7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationAxis_39050035-1c5a-4657-b137-ff4f2db30a6e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetirementPlanSponsorLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_bde82b65-7996-408b-bd99-4bfde39529e7" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationAxis_39050035-1c5a-4657-b137-ff4f2db30a6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_39050035-1c5a-4657-b137-ff4f2db30a6e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_39050035-1c5a-4657-b137-ff4f2db30a6e" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_39050035-1c5a-4657-b137-ff4f2db30a6e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_1fc787c5-bd12-4edb-8c5a-64e15835b28b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_39050035-1c5a-4657-b137-ff4f2db30a6e" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_1fc787c5-bd12-4edb-8c5a-64e15835b28b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticPlanMember_8272c332-cd71-4da4-893f-1453fc90044e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DomesticPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_1fc787c5-bd12-4edb-8c5a-64e15835b28b" xlink:to="loc_us-gaap_DomesticPlanMember_8272c332-cd71-4da4-893f-1453fc90044e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_51a754c1-bbd5-46c3-9344-ee47a038b014" xlink:href="https://xbrl.sec.gov/country/2023/country-2023.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DomesticPlanMember_8272c332-cd71-4da4-893f-1453fc90044e" xlink:to="loc_country_US_51a754c1-bbd5-46c3-9344-ee47a038b014" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignPlanMember_2228dfc1-b50d-4059-b790-1e027b93dc07" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_1fc787c5-bd12-4edb-8c5a-64e15835b28b" xlink:to="loc_us-gaap_ForeignPlanMember_2228dfc1-b50d-4059-b790-1e027b93dc07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_InternationalPlanMember_8feedffe-616b-4157-af47-5cecb2ad7295" xlink:href="see-20230930.xsd#see_InternationalPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignPlanMember_2228dfc1-b50d-4059-b790-1e027b93dc07" xlink:to="loc_see_InternationalPlanMember_8feedffe-616b-4157-af47-5cecb2ad7295" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/DefinedBenefitPensionPlansandOtherPostEmploymentBenefitPlansNetPeriodBenefitCostsIncomeforPostretirementEmployeeBenefitPlansDetails" xlink:type="simple" xlink:href="see-20230930.xsd#DefinedBenefitPensionPlansandOtherPostEmploymentBenefitPlansNetPeriodBenefitCostsIncomeforPostretirementEmployeeBenefitPlansDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/DefinedBenefitPensionPlansandOtherPostEmploymentBenefitPlansNetPeriodBenefitCostsIncomeforPostretirementEmployeeBenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_5ab40579-1acc-41e8-a1ef-92ce798c5a47" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_cb4ab262-d1d0-4199-ab24-988429ffac98" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_5ab40579-1acc-41e8-a1ef-92ce798c5a47" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_cb4ab262-d1d0-4199-ab24-988429ffac98" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_3ae806be-e919-4757-a032-92acf7c18e18" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_cb4ab262-d1d0-4199-ab24-988429ffac98" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_3ae806be-e919-4757-a032-92acf7c18e18" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_aaa79bb0-efc0-4b6b-bf51-07c726467c3b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_cb4ab262-d1d0-4199-ab24-988429ffac98" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_aaa79bb0-efc0-4b6b-bf51-07c726467c3b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_50a908a9-d397-43fb-81e2-fc70716716b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_cb4ab262-d1d0-4199-ab24-988429ffac98" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_50a908a9-d397-43fb-81e2-fc70716716b8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_DefinedBenefitPlanNetPeriodicBenefitCostIncomeCreditExcludingSettlementsAndCurtailments_aaa6bdfd-4000-4710-a778-43fc70bfe160" xlink:href="see-20230930.xsd#see_DefinedBenefitPlanNetPeriodicBenefitCostIncomeCreditExcludingSettlementsAndCurtailments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_cb4ab262-d1d0-4199-ab24-988429ffac98" xlink:to="loc_see_DefinedBenefitPlanNetPeriodicBenefitCostIncomeCreditExcludingSettlementsAndCurtailments_aaa6bdfd-4000-4710-a778-43fc70bfe160" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_94555bed-3ee0-4ed5-bfea-4c0c6ad655b5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlanDisclosureLineItems_5ab40579-1acc-41e8-a1ef-92ce798c5a47" xlink:to="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_94555bed-3ee0-4ed5-bfea-4c0c6ad655b5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_c1631536-6f6d-4a24-b1a3-9f2e89483d1c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetirementPlanTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_94555bed-3ee0-4ed5-bfea-4c0c6ad655b5" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_c1631536-6f6d-4a24-b1a3-9f2e89483d1c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_c1631536-6f6d-4a24-b1a3-9f2e89483d1c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetirementPlanTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_c1631536-6f6d-4a24-b1a3-9f2e89483d1c" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_c1631536-6f6d-4a24-b1a3-9f2e89483d1c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_3410ed09-96cf-4bef-9608-1ffa0e92924e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetirementPlanTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_c1631536-6f6d-4a24-b1a3-9f2e89483d1c" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_3410ed09-96cf-4bef-9608-1ffa0e92924e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_333c7f15-84b7-4b9c-8fac-b56f902f432e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_3410ed09-96cf-4bef-9608-1ffa0e92924e" xlink:to="loc_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_333c7f15-84b7-4b9c-8fac-b56f902f432e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/CommitmentsandContingenciesDetails" xlink:type="simple" xlink:href="see-20230930.xsd#CommitmentsandContingenciesDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/CommitmentsandContingenciesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_00536f4d-9152-42da-b3ad-bcf435206bf0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_00536f4d-9152-42da-b3ad-bcf435206bf0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_OriginalNumberOfSharesExpectToIssueUnderSettlementAgreementAdjusted_aef78cf6-a55c-4642-8812-8630a9348678" xlink:href="see-20230930.xsd#see_OriginalNumberOfSharesExpectToIssueUnderSettlementAgreementAdjusted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_see_OriginalNumberOfSharesExpectToIssueUnderSettlementAgreementAdjusted_aef78cf6-a55c-4642-8812-8630a9348678" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority_7e66b5b3-da16-4c03-ac6e-a823bc3d0dda" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_IncomeTaxExaminationLiabilityRefundAdjustmentFromSettlementWithTaxingAuthority_7e66b5b3-da16-4c03-ac6e-a823bc3d0dda" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExaminationIncreaseDecreaseInLiabilityFromPriorYear_df166b42-aef9-4da6-83fb-ddc6ab6749b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExaminationIncreaseDecreaseInLiabilityFromPriorYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_IncomeTaxExaminationIncreaseDecreaseInLiabilityFromPriorYear_df166b42-aef9-4da6-83fb-ddc6ab6749b4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PaymentForIncomeTaxExaminationEstimatedTaxLiability_aaa9d5e1-e899-4d5e-bfd8-d5dabdd26f8e" xlink:href="see-20230930.xsd#see_PaymentForIncomeTaxExaminationEstimatedTaxLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_see_PaymentForIncomeTaxExaminationEstimatedTaxLiability_aaa9d5e1-e899-4d5e-bfd8-d5dabdd26f8e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_IncomeTaxDeposit_c095404a-02be-44db-8304-88315b980bea" xlink:href="see-20230930.xsd#see_IncomeTaxDeposit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_see_IncomeTaxDeposit_c095404a-02be-44db-8304-88315b980bea" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNumberOfPlaintiffs_fb07f2a8-e220-47d9-a8f6-e54804e2c5b9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyNumberOfPlaintiffs"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_LossContingencyNumberOfPlaintiffs_fb07f2a8-e220-47d9-a8f6-e54804e2c5b9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_e48a3206-478a-461b-a271-f67a49a49f77" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LitigationSettlementAmountAwardedToOtherParty"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_e48a3206-478a-461b-a271-f67a49a49f77" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InsuranceSettlementsReceivableCurrent_32e23d54-ea8a-4baf-9c5a-78942ff3b64a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InsuranceSettlementsReceivableCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_InsuranceSettlementsReceivableCurrent_32e23d54-ea8a-4baf-9c5a-78942ff3b64a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LitigationReserveCurrent_db298156-7c7c-4f6f-b75a-680961287125" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LitigationReserveCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_LitigationReserveCurrent_db298156-7c7c-4f6f-b75a-680961287125" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossRelatedToLitigationSettlement_74c0f021-ff05-44ca-86ef-a37275689370" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossRelatedToLitigationSettlement"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_GainLossRelatedToLitigationSettlement_74c0f021-ff05-44ca-86ef-a37275689370" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8427a9b4-8f86-400c-873b-e92ab43e7c16" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_e913de6a-a507-43cf-a8d8-de34bee2af83" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8427a9b4-8f86-400c-873b-e92ab43e7c16" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_de5fcdd0-01e6-47df-b30e-1cb3b83cf8a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8427a9b4-8f86-400c-873b-e92ab43e7c16" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_de5fcdd0-01e6-47df-b30e-1cb3b83cf8a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_de5fcdd0-01e6-47df-b30e-1cb3b83cf8a8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_de5fcdd0-01e6-47df-b30e-1cb3b83cf8a8" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_de5fcdd0-01e6-47df-b30e-1cb3b83cf8a8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_c967f02c-1f4b-44d1-aced-e890d531a421" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_de5fcdd0-01e6-47df-b30e-1cb3b83cf8a8" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_c967f02c-1f4b-44d1-aced-e890d531a421" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_NorthAmericanFoamTraysAndAbsorbentPadsMember_fd6b429e-f0d2-4306-a4e3-1b6b5814f7b3" xlink:href="see-20230930.xsd#see_NorthAmericanFoamTraysAndAbsorbentPadsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_c967f02c-1f4b-44d1-aced-e890d531a421" xlink:to="loc_see_NorthAmericanFoamTraysAndAbsorbentPadsMember_fd6b429e-f0d2-4306-a4e3-1b6b5814f7b3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis_e8ec3862-d0cf-43eb-9fd2-c5061f71b891" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_LegalEntityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8427a9b4-8f86-400c-873b-e92ab43e7c16" xlink:to="loc_dei_LegalEntityAxis_e8ec3862-d0cf-43eb-9fd2-c5061f71b891" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_e8ec3862-d0cf-43eb-9fd2-c5061f71b891_default" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_e8ec3862-d0cf-43eb-9fd2-c5061f71b891" xlink:to="loc_dei_EntityDomain_e8ec3862-d0cf-43eb-9fd2-c5061f71b891_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain_c20bf350-9d04-4b30-a61e-f090abd0d7bc" xlink:href="https://xbrl.sec.gov/dei/2023/dei-2023.xsd#dei_EntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_e8ec3862-d0cf-43eb-9fd2-c5061f71b891" xlink:to="loc_dei_EntityDomain_c20bf350-9d04-4b30-a61e-f090abd0d7bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_WilliamRussellGraceAsbestosPiTrustAndWilliamRussellGraceAsbestosPdTrustMember_fd132bae-dfc1-4d57-8095-a0cf04952e12" xlink:href="see-20230930.xsd#see_WilliamRussellGraceAsbestosPiTrustAndWilliamRussellGraceAsbestosPdTrustMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_c20bf350-9d04-4b30-a61e-f090abd0d7bc" xlink:to="loc_see_WilliamRussellGraceAsbestosPiTrustAndWilliamRussellGraceAsbestosPdTrustMember_fd132bae-dfc1-4d57-8095-a0cf04952e12" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseAxis_e8020e95-b8b6-453a-abc1-7890b4200ecc" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_LitigationCaseAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_8427a9b4-8f86-400c-873b-e92ab43e7c16" xlink:to="loc_srt_LitigationCaseAxis_e8020e95-b8b6-453a-abc1-7890b4200ecc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_e8020e95-b8b6-453a-abc1-7890b4200ecc_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_e8020e95-b8b6-453a-abc1-7890b4200ecc" xlink:to="loc_srt_LitigationCaseTypeDomain_e8020e95-b8b6-453a-abc1-7890b4200ecc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_LitigationCaseTypeDomain_a0b583bf-fde1-4f8d-977a-ae0aa74ca46b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_LitigationCaseTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_e8020e95-b8b6-453a-abc1-7890b4200ecc" xlink:to="loc_srt_LitigationCaseTypeDomain_a0b583bf-fde1-4f8d-977a-ae0aa74ca46b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_UALocal13EmployersGroupInsuranceFundClassActionMember_2b87587c-66d6-4b17-ad30-a5fa739b911e" xlink:href="see-20230930.xsd#see_UALocal13EmployersGroupInsuranceFundClassActionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_a0b583bf-fde1-4f8d-977a-ae0aa74ca46b" xlink:to="loc_see_UALocal13EmployersGroupInsuranceFundClassActionMember_2b87587c-66d6-4b17-ad30-a5fa739b911e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/StockholdersEquityRepurchaseofCommonStockDetails" xlink:type="simple" xlink:href="see-20230930.xsd#StockholdersEquityRepurchaseofCommonStockDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/StockholdersEquityRepurchaseofCommonStockDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems_32e464ea-a819-4df1-a20a-0143a6618100" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityClassOfTreasuryStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_bc1a6cb8-1a0e-4969-8bdc-48069802bee1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_32e464ea-a819-4df1-a20a-0143a6618100" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_bc1a6cb8-1a0e-4969-8bdc-48069802bee1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_9120e5c1-56ac-4329-a95a-eaf4e9db1062" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_32e464ea-a819-4df1-a20a-0143a6618100" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_9120e5c1-56ac-4329-a95a-eaf4e9db1062" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_84347103-7ad4-469f-a398-676e89fc9d36" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_32e464ea-a819-4df1-a20a-0143a6618100" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_84347103-7ad4-469f-a398-676e89fc9d36" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_TreasuryStockValueAcquiredCostMethodExcludingCommissions_e8c278de-4b0f-4dd8-8a44-6416d00b3ad2" xlink:href="see-20230930.xsd#see_TreasuryStockValueAcquiredCostMethodExcludingCommissions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_32e464ea-a819-4df1-a20a-0143a6618100" xlink:to="loc_see_TreasuryStockValueAcquiredCostMethodExcludingCommissions_e8c278de-4b0f-4dd8-8a44-6416d00b3ad2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_b89fd8a6-4d22-4d22-89a1-e443f9397637" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_32e464ea-a819-4df1-a20a-0143a6618100" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_b89fd8a6-4d22-4d22-89a1-e443f9397637" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable_6d825e3e-f8a2-4d52-b4a1-db3888ed53b3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfTreasuryStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_32e464ea-a819-4df1-a20a-0143a6618100" xlink:to="loc_us-gaap_ClassOfTreasuryStockTable_6d825e3e-f8a2-4d52-b4a1-db3888ed53b3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramAxis_a5c0f101-8c1e-4166-8a84-7137160647c1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareRepurchaseProgramAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_6d825e3e-f8a2-4d52-b4a1-db3888ed53b3" xlink:to="loc_us-gaap_ShareRepurchaseProgramAxis_a5c0f101-8c1e-4166-8a84-7137160647c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_a5c0f101-8c1e-4166-8a84-7137160647c1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_a5c0f101-8c1e-4166-8a84-7137160647c1" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_a5c0f101-8c1e-4166-8a84-7137160647c1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareRepurchaseProgramDomain_5926b64b-8e81-4945-b91c-01a12da436ad" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareRepurchaseProgramAxis_a5c0f101-8c1e-4166-8a84-7137160647c1" xlink:to="loc_us-gaap_ShareRepurchaseProgramDomain_5926b64b-8e81-4945-b91c-01a12da436ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A2021ShareRepurchaseProgramMember_a29d44d4-bb5c-476f-b585-371103bbb0dd" xlink:href="see-20230930.xsd#see_A2021ShareRepurchaseProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareRepurchaseProgramDomain_5926b64b-8e81-4945-b91c-01a12da436ad" xlink:to="loc_see_A2021ShareRepurchaseProgramMember_a29d44d4-bb5c-476f-b585-371103bbb0dd" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/StockholdersEquityDividendsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#StockholdersEquityDividendsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/StockholdersEquityDividendsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableLineItems_b5526711-afa2-495e-b0e4-73eceba71fa9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DividendsPayableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_2eccdbc0-7660-4b55-851d-11a8c141650e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsPayableLineItems_b5526711-afa2-495e-b0e4-73eceba71fa9" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_2eccdbc0-7660-4b55-851d-11a8c141650e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_d3098041-b68b-4138-b7d9-fae9bc0f6033" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DividendsPayableLineItems_b5526711-afa2-495e-b0e4-73eceba71fa9" xlink:to="loc_us-gaap_DividendsCommonStockCash_d3098041-b68b-4138-b7d9-fae9bc0f6033" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableTable_07d5b19d-7f08-435d-860b-b58f3bbc0c95" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DividendsPayableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DividendsPayableLineItems_b5526711-afa2-495e-b0e4-73eceba71fa9" xlink:to="loc_us-gaap_DividendsPayableTable_07d5b19d-7f08-435d-860b-b58f3bbc0c95" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_9f5dc564-e6d6-43d9-9783-20969f0f18f9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DividendsPayableTable_07d5b19d-7f08-435d-860b-b58f3bbc0c95" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_9f5dc564-e6d6-43d9-9783-20969f0f18f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_9f5dc564-e6d6-43d9-9783-20969f0f18f9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_9f5dc564-e6d6-43d9-9783-20969f0f18f9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_9f5dc564-e6d6-43d9-9783-20969f0f18f9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_0159122a-3b25-43bf-8ae8-6699d798a19d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_9f5dc564-e6d6-43d9-9783-20969f0f18f9" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_0159122a-3b25-43bf-8ae8-6699d798a19d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_335a1f96-8b36-4333-9bb9-a9272e1985e7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_0159122a-3b25-43bf-8ae8-6699d798a19d" xlink:to="loc_us-gaap_SubsequentEventMember_335a1f96-8b36-4333-9bb9-a9272e1985e7" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/StockholdersEquitySharebasedCompensationOmnibusIncentivePlanDetails" xlink:type="simple" xlink:href="see-20230930.xsd#StockholdersEquitySharebasedCompensationOmnibusIncentivePlanDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/StockholdersEquitySharebasedCompensationOmnibusIncentivePlanDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_bb522a8c-cee3-4326-a54e-8c05f82422f1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_d932f4da-031b-4eb0-a5bf-399ee5fd02a1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_bb522a8c-cee3-4326-a54e-8c05f82422f1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_d932f4da-031b-4eb0-a5bf-399ee5fd02a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_a7ed4a6f-8434-420e-aada-fd8233c2c7df" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_bb522a8c-cee3-4326-a54e-8c05f82422f1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfAdditionalSharesAuthorized_a7ed4a6f-8434-420e-aada-fd8233c2c7df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a0563212-3fd7-4c5c-b469-eac6b2ff7a65" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_bb522a8c-cee3-4326-a54e-8c05f82422f1" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a0563212-3fd7-4c5c-b469-eac6b2ff7a65" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_7238039b-ab01-4d81-b483-24b0d551169c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_a0563212-3fd7-4c5c-b469-eac6b2ff7a65" xlink:to="loc_us-gaap_AwardTypeAxis_7238039b-ab01-4d81-b483-24b0d551169c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7238039b-ab01-4d81-b483-24b0d551169c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_7238039b-ab01-4d81-b483-24b0d551169c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_7238039b-ab01-4d81-b483-24b0d551169c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4bd14caa-b355-4ddd-bac1-8f16cb17eb13" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_7238039b-ab01-4d81-b483-24b0d551169c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4bd14caa-b355-4ddd-bac1-8f16cb17eb13" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_TwoThousandFourteenOmnibusIncentivePlanMember_09bae253-8238-4547-9195-92737caf9b5b" xlink:href="see-20230930.xsd#see_TwoThousandFourteenOmnibusIncentivePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_4bd14caa-b355-4ddd-bac1-8f16cb17eb13" xlink:to="loc_see_TwoThousandFourteenOmnibusIncentivePlanMember_09bae253-8238-4547-9195-92737caf9b5b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/StockholdersEquityPSUAwardsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#StockholdersEquityPSUAwardsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/StockholdersEquityPSUAwardsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PeriodInBeginningOfEachYearToAwardPerformanceShareUnit_519a5c4b-7e0c-4e5d-ab85-29e7690d0d49" xlink:href="see-20230930.xsd#see_PeriodInBeginningOfEachYearToAwardPerformanceShareUnit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PeriodInBeginningOfEachYearToAwardPerformanceShareUnit_519a5c4b-7e0c-4e5d-ab85-29e7690d0d49" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformancePeriod_bf8c98c6-42f2-41ea-86c3-758a677b9a5d" xlink:href="see-20230930.xsd#see_PerformancePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PerformancePeriod_bf8c98c6-42f2-41ea-86c3-758a677b9a5d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceStockUnitAwardPeriod_fa9b191f-af8b-4a2b-8958-051c20b57322" xlink:href="see-20230930.xsd#see_PerformanceStockUnitAwardPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PerformanceStockUnitAwardPeriod_fa9b191f-af8b-4a2b-8958-051c20b57322" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceGoalsCumulativeAverageGrowthRatePeriod_8ef008cf-9144-406c-a99d-d0cbf3f31e2f" xlink:href="see-20230930.xsd#see_PerformanceGoalsCumulativeAverageGrowthRatePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PerformanceGoalsCumulativeAverageGrowthRatePeriod_8ef008cf-9144-406c-a99d-d0cbf3f31e2f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PercentageOfWeightedAverageAdjustedEarningsBeforeInterestTaxesDepreciationandAmortization_1002d1a7-1d27-4e23-9803-fcea27d77660" xlink:href="see-20230930.xsd#see_PercentageOfWeightedAverageAdjustedEarningsBeforeInterestTaxesDepreciationandAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PercentageOfWeightedAverageAdjustedEarningsBeforeInterestTaxesDepreciationandAmortization_1002d1a7-1d27-4e23-9803-fcea27d77660" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PercentageOfWeightedAverageReturnOnCapital_a723176d-7a9c-4d4a-a13d-e1a545118082" xlink:href="see-20230930.xsd#see_PercentageOfWeightedAverageReturnOnCapital"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PercentageOfWeightedAverageReturnOnCapital_a723176d-7a9c-4d4a-a13d-e1a545118082" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceAchievementMaximumPercentageAdjustmentBasedOnResultsOfTotalShareholderReturnModifier_6c31ab4f-56b5-42f5-8769-802ca938a111" xlink:href="see-20230930.xsd#see_PerformanceAchievementMaximumPercentageAdjustmentBasedOnResultsOfTotalShareholderReturnModifier"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PerformanceAchievementMaximumPercentageAdjustmentBasedOnResultsOfTotalShareholderReturnModifier_6c31ab4f-56b5-42f5-8769-802ca938a111" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ShareholderReturnTopQuartileOfComparatorGroupIncreasesOverallAchievementOfPerformanceMetricsPercentage_078ba725-1665-48da-ba5a-0a241262e01f" xlink:href="see-20230930.xsd#see_ShareholderReturnTopQuartileOfComparatorGroupIncreasesOverallAchievementOfPerformanceMetricsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_ShareholderReturnTopQuartileOfComparatorGroupIncreasesOverallAchievementOfPerformanceMetricsPercentage_078ba725-1665-48da-ba5a-0a241262e01f" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ShareholderReturnBottomQuartileOfComparatorGroupDecreaseOverallAchievementOfPerformanceMetricsPercentage_e0cd2a8d-e2d4-4c0e-987b-b0fb8d5de7ed" xlink:href="see-20230930.xsd#see_ShareholderReturnBottomQuartileOfComparatorGroupDecreaseOverallAchievementOfPerformanceMetricsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_ShareholderReturnBottomQuartileOfComparatorGroupDecreaseOverallAchievementOfPerformanceMetricsPercentage_e0cd2a8d-e2d4-4c0e-987b-b0fb8d5de7ed" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_SharesToBeIssuedAsPercentageOfTargetSharesUnderPerformanceIncentivePlan_0ab69405-cc44-43a4-89d2-be10d314b4f3" xlink:href="see-20230930.xsd#see_SharesToBeIssuedAsPercentageOfTargetSharesUnderPerformanceIncentivePlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_SharesToBeIssuedAsPercentageOfTargetSharesUnderPerformanceIncentivePlan_0ab69405-cc44-43a4-89d2-be10d314b4f3" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PercentageOfTargetESGAwardsWeightedToSustainabilityGoals_cf29a7ad-3ad8-4ac2-89b6-0935bd8e2a82" xlink:href="see-20230930.xsd#see_PercentageOfTargetESGAwardsWeightedToSustainabilityGoals"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PercentageOfTargetESGAwardsWeightedToSustainabilityGoals_cf29a7ad-3ad8-4ac2-89b6-0935bd8e2a82" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PercentageOfTargetESGAwardsWeightedToSocialGoals_1c0ac6ac-a633-4d62-aae5-0b553f8ddf3a" xlink:href="see-20230930.xsd#see_PercentageOfTargetESGAwardsWeightedToSocialGoals"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_PercentageOfTargetESGAwardsWeightedToSocialGoals_1c0ac6ac-a633-4d62-aae5-0b553f8ddf3a" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_3e08f43f-5008-4c93-b944-b7a805527061" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_3e08f43f-5008-4c93-b944-b7a805527061" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_SharesToBeIssuedUnderPerformanceIncentivePlan_1282eccb-7042-425e-9093-8205a613ccec" xlink:href="see-20230930.xsd#see_SharesToBeIssuedUnderPerformanceIncentivePlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_SharesToBeIssuedUnderPerformanceIncentivePlan_1282eccb-7042-425e-9093-8205a613ccec" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_ead5f32b-abad-4c50-95d1-ab1446b79cc0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_ead5f32b-abad-4c50-95d1-ab1446b79cc0" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_ShareBasedPaymentArrangementSharesCashSettledAwards_af50766a-c582-4fdd-8cd0-ff2b047e2ed4" xlink:href="see-20230930.xsd#see_ShareBasedPaymentArrangementSharesCashSettledAwards"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_see_ShareBasedPaymentArrangementSharesCashSettledAwards_af50766a-c582-4fdd-8cd0-ff2b047e2ed4" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_ae2f0831-6f5f-4d67-bbe8-4cda9d027d08" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_ae2f0831-6f5f-4d67-bbe8-4cda9d027d08" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61c71275-9f3c-4a89-ae9b-22a8fd3d6b6c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_0af3560c-fcb9-42e5-9e34-6baf5066db94" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61c71275-9f3c-4a89-ae9b-22a8fd3d6b6c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_83d6f1b7-7efb-4e06-87a6-4304f830f3b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61c71275-9f3c-4a89-ae9b-22a8fd3d6b6c" xlink:to="loc_us-gaap_AwardTypeAxis_83d6f1b7-7efb-4e06-87a6-4304f830f3b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_83d6f1b7-7efb-4e06-87a6-4304f830f3b4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_83d6f1b7-7efb-4e06-87a6-4304f830f3b4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_83d6f1b7-7efb-4e06-87a6-4304f830f3b4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5066f90a-1bbe-4883-8ba6-3ac129111974" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_83d6f1b7-7efb-4e06-87a6-4304f830f3b4" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5066f90a-1bbe-4883-8ba6-3ac129111974" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A2023ThreeYearPerformanceShareUnitsAwardsMember_05fea292-5cf0-44ff-97e7-6050b04fe43c" xlink:href="see-20230930.xsd#see_A2023ThreeYearPerformanceShareUnitsAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5066f90a-1bbe-4883-8ba6-3ac129111974" xlink:to="loc_see_A2023ThreeYearPerformanceShareUnitsAwardsMember_05fea292-5cf0-44ff-97e7-6050b04fe43c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FiveYearEnvironmentalSocialGovernanceAwardsMember_85beac80-d7d0-408b-a1e9-684bf3ba53e7" xlink:href="see-20230930.xsd#see_FiveYearEnvironmentalSocialGovernanceAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5066f90a-1bbe-4883-8ba6-3ac129111974" xlink:to="loc_see_FiveYearEnvironmentalSocialGovernanceAwardsMember_85beac80-d7d0-408b-a1e9-684bf3ba53e7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A2020ThreeYearPerformanceShareUnitsAwardsMember_6616a192-c465-4b04-9508-391f29e07a1e" xlink:href="see-20230930.xsd#see_A2020ThreeYearPerformanceShareUnitsAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5066f90a-1bbe-4883-8ba6-3ac129111974" xlink:to="loc_see_A2020ThreeYearPerformanceShareUnitsAwardsMember_6616a192-c465-4b04-9508-391f29e07a1e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A20202023ThreeYearPerformanceShareUnitsAwardsMember_0b163159-484b-4bac-819d-fef4dcd3d7a1" xlink:href="see-20230930.xsd#see_A20202023ThreeYearPerformanceShareUnitsAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_5066f90a-1bbe-4883-8ba6-3ac129111974" xlink:to="loc_see_A20202023ThreeYearPerformanceShareUnitsAwardsMember_0b163159-484b-4bac-819d-fef4dcd3d7a1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_3c27000c-ef1b-41e9-a372-d5bfa56ef8d3" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_61c71275-9f3c-4a89-ae9b-22a8fd3d6b6c" xlink:to="loc_srt_RangeAxis_3c27000c-ef1b-41e9-a372-d5bfa56ef8d3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_3c27000c-ef1b-41e9-a372-d5bfa56ef8d3_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_3c27000c-ef1b-41e9-a372-d5bfa56ef8d3" xlink:to="loc_srt_RangeMember_3c27000c-ef1b-41e9-a372-d5bfa56ef8d3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_529e2114-3dd7-4863-a722-4acca9b4eb1d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_3c27000c-ef1b-41e9-a372-d5bfa56ef8d3" xlink:to="loc_srt_RangeMember_529e2114-3dd7-4863-a722-4acca9b4eb1d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_d6073143-795a-4bb5-a0a0-d2f7c4134657" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_529e2114-3dd7-4863-a722-4acca9b4eb1d" xlink:to="loc_srt_MinimumMember_d6073143-795a-4bb5-a0a0-d2f7c4134657" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_81eaaaf5-4208-42e2-8813-63253725f6c9" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_529e2114-3dd7-4863-a722-4acca9b4eb1d" xlink:to="loc_srt_MaximumMember_81eaaaf5-4208-42e2-8813-63253725f6c9" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/StockholdersEquityNumberofPSUsGrantedandGrantDateFairValueofPSUsDetails" xlink:type="simple" xlink:href="see-20230930.xsd#StockholdersEquityNumberofPSUsGrantedandGrantDateFairValueofPSUsDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/StockholdersEquityNumberofPSUsGrantedandGrantDateFairValueofPSUsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4df7c2f-9674-4561-88ac-446ad7c0305c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_23da8e4b-4fbf-4226-a018-e1dc16047f2f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4df7c2f-9674-4561-88ac-446ad7c0305c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_23da8e4b-4fbf-4226-a018-e1dc16047f2f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_cae540c2-4c78-4ac0-9235-dfea46273db3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4df7c2f-9674-4561-88ac-446ad7c0305c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_cae540c2-4c78-4ac0-9235-dfea46273db3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_17078af2-7d66-4d20-badd-93c0b274b839" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_c4df7c2f-9674-4561-88ac-446ad7c0305c" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_17078af2-7d66-4d20-badd-93c0b274b839" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_c766c0a1-f03b-4006-b905-7bcac8a9dac7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_17078af2-7d66-4d20-badd-93c0b274b839" xlink:to="loc_us-gaap_AwardTypeAxis_c766c0a1-f03b-4006-b905-7bcac8a9dac7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c766c0a1-f03b-4006-b905-7bcac8a9dac7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_c766c0a1-f03b-4006-b905-7bcac8a9dac7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c766c0a1-f03b-4006-b905-7bcac8a9dac7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bccf8e71-3744-471e-932a-a913ef0cc4ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_c766c0a1-f03b-4006-b905-7bcac8a9dac7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bccf8e71-3744-471e-932a-a913ef0cc4ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceShareUnitsReturnOnInvestedCapitalROICMember_96cbceaa-d9dd-4e56-b011-3d8f5588e00a" xlink:href="see-20230930.xsd#see_PerformanceShareUnitsReturnOnInvestedCapitalROICMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bccf8e71-3744-471e-932a-a913ef0cc4ef" xlink:to="loc_see_PerformanceShareUnitsReturnOnInvestedCapitalROICMember_96cbceaa-d9dd-4e56-b011-3d8f5588e00a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceStockUnitAdjustedEBITDACAGRMember_a5f9b67b-e0a3-47d7-8f18-52fe238d0c71" xlink:href="see-20230930.xsd#see_PerformanceStockUnitAdjustedEBITDACAGRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bccf8e71-3744-471e-932a-a913ef0cc4ef" xlink:to="loc_see_PerformanceStockUnitAdjustedEBITDACAGRMember_a5f9b67b-e0a3-47d7-8f18-52fe238d0c71" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceShareUnitsESGEnvironmentalGoalsMember_a808f4e6-56ee-4b23-973b-f144cc356735" xlink:href="see-20230930.xsd#see_PerformanceShareUnitsESGEnvironmentalGoalsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bccf8e71-3744-471e-932a-a913ef0cc4ef" xlink:to="loc_see_PerformanceShareUnitsESGEnvironmentalGoalsMember_a808f4e6-56ee-4b23-973b-f144cc356735" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceShareUnitsESGSocialGoalsMember_9992f482-5b9d-4e29-ab45-581a4832974e" xlink:href="see-20230930.xsd#see_PerformanceShareUnitsESGSocialGoalsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_bccf8e71-3744-471e-932a-a913ef0cc4ef" xlink:to="loc_see_PerformanceShareUnitsESGSocialGoalsMember_9992f482-5b9d-4e29-ab45-581a4832974e" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/StockholdersEquitySummaryofAssumptionsUsedtoCalculatetheGrantDateFairValueDetails" xlink:type="simple" xlink:href="see-20230930.xsd#StockholdersEquitySummaryofAssumptionsUsedtoCalculatetheGrantDateFairValueDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/StockholdersEquitySummaryofAssumptionsUsedtoCalculatetheGrantDateFairValueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_83c23599-a1e6-42c3-81e5-e9026c92f2e0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_42f22ab8-f3a6-4310-b381-5001d41da4d1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_83c23599-a1e6-42c3-81e5-e9026c92f2e0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_42f22ab8-f3a6-4310-b381-5001d41da4d1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_33a2a4a0-4d88-4e36-9a84-3e48abe9260f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_83c23599-a1e6-42c3-81e5-e9026c92f2e0" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_33a2a4a0-4d88-4e36-9a84-3e48abe9260f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_fdccdcd1-a70d-4a72-9ed9-66806c651677" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_83c23599-a1e6-42c3-81e5-e9026c92f2e0" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_fdccdcd1-a70d-4a72-9ed9-66806c651677" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_6c79faa3-b7d0-4cbb-99b8-23f2cdd8c60c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_fdccdcd1-a70d-4a72-9ed9-66806c651677" xlink:to="loc_us-gaap_AwardTypeAxis_6c79faa3-b7d0-4cbb-99b8-23f2cdd8c60c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_6c79faa3-b7d0-4cbb-99b8-23f2cdd8c60c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_6c79faa3-b7d0-4cbb-99b8-23f2cdd8c60c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_6c79faa3-b7d0-4cbb-99b8-23f2cdd8c60c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_cd941915-b9cf-473f-a927-023829f543f1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_6c79faa3-b7d0-4cbb-99b8-23f2cdd8c60c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_cd941915-b9cf-473f-a927-023829f543f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember_27ae626d-c4b0-4751-b629-01ffbc9d14d4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_cd941915-b9cf-473f-a927-023829f543f1" xlink:to="loc_us-gaap_PerformanceSharesMember_27ae626d-c4b0-4751-b629-01ffbc9d14d4" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/AccumulatedOtherComprehensiveLossDetailsofComprehensiveIncomeLossDetails" xlink:type="simple" xlink:href="see-20230930.xsd#AccumulatedOtherComprehensiveLossDetailsofComprehensiveIncomeLossDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/AccumulatedOtherComprehensiveLossDetailsofComprehensiveIncomeLossDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_718106f2-d291-4fda-8de1-b1882d3748e1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_f9a9f0e4-56e5-4e50-a6a5-8e34867ddb7f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AOCIAttributableToParentNetOfTaxRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_718106f2-d291-4fda-8de1-b1882d3748e1" xlink:to="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_f9a9f0e4-56e5-4e50-a6a5-8e34867ddb7f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_e8c82f7b-7e67-4c0b-990f-20ff7e1318fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_f9a9f0e4-56e5-4e50-a6a5-8e34867ddb7f" xlink:to="loc_us-gaap_StockholdersEquity_e8c82f7b-7e67-4c0b-990f-20ff7e1318fe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_78322498-0f4e-49a5-8d75-086db1836157" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_f9a9f0e4-56e5-4e50-a6a5-8e34867ddb7f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_78322498-0f4e-49a5-8d75-086db1836157" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_4c7d86b8-a215-4a9a-bc5f-970359d3d1bf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_f9a9f0e4-56e5-4e50-a6a5-8e34867ddb7f" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_4c7d86b8-a215-4a9a-bc5f-970359d3d1bf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6c49583e-a30e-4430-96b0-718685ad24ae" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_f9a9f0e4-56e5-4e50-a6a5-8e34867ddb7f" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_6c49583e-a30e-4430-96b0-718685ad24ae" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_b2de99f7-b3d4-4cfa-85b8-fb86471ecfc1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_f91434e2-40c8-4ce2-952b-535091d12666" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_f9a9f0e4-56e5-4e50-a6a5-8e34867ddb7f" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax_f91434e2-40c8-4ce2-952b-535091d12666" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_c7d9d624-4a13-4dec-9942-19db154d869f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_718106f2-d291-4fda-8de1-b1882d3748e1" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_c7d9d624-4a13-4dec-9942-19db154d869f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_a94df230-3f2c-4636-b258-11dc785428b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_c7d9d624-4a13-4dec-9942-19db154d869f" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_a94df230-3f2c-4636-b258-11dc785428b4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a94df230-3f2c-4636-b258-11dc785428b4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a94df230-3f2c-4636-b258-11dc785428b4" xlink:to="loc_us-gaap_EquityComponentDomain_a94df230-3f2c-4636-b258-11dc785428b4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_586a740f-dad2-45dc-abda-1c8d888dda92" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a94df230-3f2c-4636-b258-11dc785428b4" xlink:to="loc_us-gaap_EquityComponentDomain_586a740f-dad2-45dc-abda-1c8d888dda92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_4d9649e1-899c-4a65-a3d7-ad8b434cdd14" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_586a740f-dad2-45dc-abda-1c8d888dda92" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_4d9649e1-899c-4a65-a3d7-ad8b434cdd14" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_5473685a-f736-4884-93b8-5303b2e7169f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_586a740f-dad2-45dc-abda-1c8d888dda92" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_5473685a-f736-4884-93b8-5303b2e7169f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_5bdf33ea-6b9a-4331-8bb6-415c8d64988a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_586a740f-dad2-45dc-abda-1c8d888dda92" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_5bdf33ea-6b9a-4331-8bb6-415c8d64988a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_65656a0b-df8d-45e3-a2b5-1ac12dff8dcf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_586a740f-dad2-45dc-abda-1c8d888dda92" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_65656a0b-df8d-45e3-a2b5-1ac12dff8dcf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_0166fe34-e17b-40df-8c12-c2b2b2c102c5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_c7d9d624-4a13-4dec-9942-19db154d869f" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_0166fe34-e17b-40df-8c12-c2b2b2c102c5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_0166fe34-e17b-40df-8c12-c2b2b2c102c5_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_0166fe34-e17b-40df-8c12-c2b2b2c102c5" xlink:to="loc_us-gaap_HedgingRelationshipDomain_0166fe34-e17b-40df-8c12-c2b2b2c102c5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingRelationshipDomain_7285dcdf-66cb-4238-a6de-70b29f132c91" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_HedgingRelationshipDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_0166fe34-e17b-40df-8c12-c2b2b2c102c5" xlink:to="loc_us-gaap_HedgingRelationshipDomain_7285dcdf-66cb-4238-a6de-70b29f132c91" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetInvestmentHedgingMember_3a544b1c-f9f1-4bc3-943e-1070f009a4ff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetInvestmentHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_7285dcdf-66cb-4238-a6de-70b29f132c91" xlink:to="loc_us-gaap_NetInvestmentHedgingMember_3a544b1c-f9f1-4bc3-943e-1070f009a4ff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashFlowHedgingMember_81e348f2-6498-40fb-bb55-95adc7cca0be" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashFlowHedgingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_7285dcdf-66cb-4238-a6de-70b29f132c91" xlink:to="loc_us-gaap_CashFlowHedgingMember_81e348f2-6498-40fb-bb55-95adc7cca0be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_4bb50361-2662-4c94-8614-c06864756881" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_c7d9d624-4a13-4dec-9942-19db154d869f" xlink:to="loc_srt_ConsolidationItemsAxis_4bb50361-2662-4c94-8614-c06864756881" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_4bb50361-2662-4c94-8614-c06864756881_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_4bb50361-2662-4c94-8614-c06864756881" xlink:to="loc_srt_ConsolidationItemsDomain_4bb50361-2662-4c94-8614-c06864756881_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_a21e7a87-f7fc-45cf-884b-965e6a9d1735" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_4bb50361-2662-4c94-8614-c06864756881" xlink:to="loc_srt_ConsolidationItemsDomain_a21e7a87-f7fc-45cf-884b-965e6a9d1735" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationEliminationsMember_912dd60e-1b9e-40da-b253-74f4a7209981" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidationEliminationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_a21e7a87-f7fc-45cf-884b-965e6a9d1735" xlink:to="loc_srt_ConsolidationEliminationsMember_912dd60e-1b9e-40da-b253-74f4a7209981" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.sealedair.com/role/AccumulatedOtherComprehensiveLossDetailsofAmountReclassifiedfromAOCLDetails" xlink:type="simple" xlink:href="see-20230930.xsd#AccumulatedOtherComprehensiveLossDetailsofAmountReclassifiedfromAOCLDetails"/>
  <link:definitionLink xlink:role="http://www.sealedair.com/role/AccumulatedOtherComprehensiveLossDetailsofAmountReclassifiedfromAOCLDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_ea828aef-79b6-4485-970f-2a3918fb525f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_ea828aef-79b6-4485-970f-2a3918fb525f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfRevenue_f24b5a09-db92-4f6d-86a7-6629178f7caf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfRevenue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:to="loc_us-gaap_CostOfRevenue_f24b5a09-db92-4f6d-86a7-6629178f7caf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNet_b054344a-c8ae-4c09-8526-11fd669a3e10" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestIncomeExpenseNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:to="loc_us-gaap_InterestIncomeExpenseNet_b054344a-c8ae-4c09-8526-11fd669a3e10" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_45129d8d-8c9c-4dd5-bc11-bfe020875b1e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_45129d8d-8c9c-4dd5-bc11-bfe020875b1e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_f42c4956-2f58-404b-93b5-d8cb10cd1923" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_f42c4956-2f58-404b-93b5-d8cb10cd1923" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_a0c6e94d-b7ba-49ee-8c02-6471452d257c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperations_a0c6e94d-b7ba-49ee-8c02-6471452d257c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_a6b1cdd3-230f-4447-b96d-b9dd3dbb4f31" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:to="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_a6b1cdd3-230f-4447-b96d-b9dd3dbb4f31" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_e86dda94-2c55-4313-9ff5-fb1737f50728" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_2155324f-18c1-4900-9384-fdb4086a08ce" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_e86dda94-2c55-4313-9ff5-fb1737f50728" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_3825eb24-34a8-4202-81f3-7d6a3fc159bc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_e86dda94-2c55-4313-9ff5-fb1737f50728" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_3825eb24-34a8-4202-81f3-7d6a3fc159bc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_3825eb24-34a8-4202-81f3-7d6a3fc159bc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_3825eb24-34a8-4202-81f3-7d6a3fc159bc" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_3825eb24-34a8-4202-81f3-7d6a3fc159bc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_e8a81dfb-5461-4371-beb2-8bf6fd168632" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeAxis_3825eb24-34a8-4202-81f3-7d6a3fc159bc" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_e8a81dfb-5461-4371-beb2-8bf6fd168632" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_ea4a43e0-62dc-456b-bf96-8003bee29086" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeDomain_e8a81dfb-5461-4371-beb2-8bf6fd168632" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeMember_ea4a43e0-62dc-456b-bf96-8003bee29086" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_a6f59354-7d3f-4c32-af6d-e0c4c96fb9d1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_e86dda94-2c55-4313-9ff5-fb1737f50728" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_a6f59354-7d3f-4c32-af6d-e0c4c96fb9d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a6f59354-7d3f-4c32-af6d-e0c4c96fb9d1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a6f59354-7d3f-4c32-af6d-e0c4c96fb9d1" xlink:to="loc_us-gaap_EquityComponentDomain_a6f59354-7d3f-4c32-af6d-e0c4c96fb9d1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_fa585b5c-4d37-4132-bae7-1cb901551e7d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a6f59354-7d3f-4c32-af6d-e0c4c96fb9d1" xlink:to="loc_us-gaap_EquityComponentDomain_fa585b5c-4d37-4132-bae7-1cb901551e7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_AccumulatedDefinedBenefitPlansAdjustmentSettlementAttributableToParentMember_cb8b3753-05f5-4d78-abf0-fb4ee7a937fe" xlink:href="see-20230930.xsd#see_AccumulatedDefinedBenefitPlansAdjustmentSettlementAttributableToParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_fa585b5c-4d37-4132-bae7-1cb901551e7d" xlink:to="loc_see_AccumulatedDefinedBenefitPlansAdjustmentSettlementAttributableToParentMember_cb8b3753-05f5-4d78-abf0-fb4ee7a937fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember_7151a1d8-648c-4105-9ae3-c92c773682e2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_fa585b5c-4d37-4132-bae7-1cb901551e7d" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetPriorServiceCostCreditMember_7151a1d8-648c-4105-9ae3-c92c773682e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember_ad325f80-22bb-4471-a506-5cb95a28a54d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_fa585b5c-4d37-4132-bae7-1cb901551e7d" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentNetUnamortizedGainLossMember_ad325f80-22bb-4471-a506-5cb95a28a54d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_98fe6a98-6d1e-40d7-8d76-5bda8d14bd01" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_fa585b5c-4d37-4132-bae7-1cb901551e7d" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_98fe6a98-6d1e-40d7-8d76-5bda8d14bd01" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_93844258-5a74-4d5a-b8e9-43d64ebb62f7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_fa585b5c-4d37-4132-bae7-1cb901551e7d" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_93844258-5a74-4d5a-b8e9-43d64ebb62f7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_a995b3bd-22c3-41c9-9136-4729e7ddaf28" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_e86dda94-2c55-4313-9ff5-fb1737f50728" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_a995b3bd-22c3-41c9-9136-4729e7ddaf28" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_a995b3bd-22c3-41c9-9136-4729e7ddaf28_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_a995b3bd-22c3-41c9-9136-4729e7ddaf28" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_a995b3bd-22c3-41c9-9136-4729e7ddaf28_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_6c6fd3b0-3abd-4b01-99bd-19f99e57e79e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeContractTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_a995b3bd-22c3-41c9-9136-4729e7ddaf28" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_6c6fd3b0-3abd-4b01-99bd-19f99e57e79e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_348e433f-2392-4eeb-9afc-e79f6a3dacca" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ForeignExchangeForwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_6c6fd3b0-3abd-4b01-99bd-19f99e57e79e" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_348e433f-2392-4eeb-9afc-e79f6a3dacca" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryLockMember_c059e584-0d10-4e69-a4fe-1153efea7547" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryLockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_6c6fd3b0-3abd-4b01-99bd-19f99e57e79e" xlink:to="loc_us-gaap_TreasuryLockMember_c059e584-0d10-4e69-a4fe-1153efea7547" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2023/ecd-2023.xsd#AwardTypeOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/ecd/AwardTypeOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_TwoThousandFourteenOmnibusIncentivePlanMember_512dd663-cab1-4edc-85e3-b49850868fa9" xlink:href="see-20230930.xsd#see_TwoThousandFourteenOmnibusIncentivePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_TwoThousandFourteenOmnibusIncentivePlanMember_512dd663-cab1-4edc-85e3-b49850868fa9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A2023ThreeYearPerformanceShareUnitsAwardsMember_96931a22-c72f-42c2-9529-608dc130548c" xlink:href="see-20230930.xsd#see_A2023ThreeYearPerformanceShareUnitsAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_A2023ThreeYearPerformanceShareUnitsAwardsMember_96931a22-c72f-42c2-9529-608dc130548c" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceShareUnitsReturnOnInvestedCapitalROICMember_2922cbce-8571-42d2-87a9-6fec8bfd5e16" xlink:href="see-20230930.xsd#see_PerformanceShareUnitsReturnOnInvestedCapitalROICMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_PerformanceShareUnitsReturnOnInvestedCapitalROICMember_2922cbce-8571-42d2-87a9-6fec8bfd5e16" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceStockUnitAdjustedEBITDACAGRMember_d92ebc98-f903-421f-8c0c-1332354efa9d" xlink:href="see-20230930.xsd#see_PerformanceStockUnitAdjustedEBITDACAGRMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_PerformanceStockUnitAdjustedEBITDACAGRMember_d92ebc98-f903-421f-8c0c-1332354efa9d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PerformanceSharesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PerformanceSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_us-gaap_PerformanceSharesMember" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_FiveYearEnvironmentalSocialGovernanceAwardsMember_e9890bfc-58a6-48c3-80c0-d71a52ccb95f" xlink:href="see-20230930.xsd#see_FiveYearEnvironmentalSocialGovernanceAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_FiveYearEnvironmentalSocialGovernanceAwardsMember_e9890bfc-58a6-48c3-80c0-d71a52ccb95f" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceShareUnitsESGEnvironmentalGoalsMember_2638bc92-f2fe-4583-a7f7-5b88cc8a50da" xlink:href="see-20230930.xsd#see_PerformanceShareUnitsESGEnvironmentalGoalsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_PerformanceShareUnitsESGEnvironmentalGoalsMember_2638bc92-f2fe-4583-a7f7-5b88cc8a50da" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_PerformanceShareUnitsESGSocialGoalsMember_25ffde5b-1b3c-4603-b4bf-496129333895" xlink:href="see-20230930.xsd#see_PerformanceShareUnitsESGSocialGoalsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_PerformanceShareUnitsESGSocialGoalsMember_25ffde5b-1b3c-4603-b4bf-496129333895" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A2020ThreeYearPerformanceShareUnitsAwardsMember_d853264a-80cd-456e-abfb-0fc2ea576d7b" xlink:href="see-20230930.xsd#see_A2020ThreeYearPerformanceShareUnitsAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_A2020ThreeYearPerformanceShareUnitsAwardsMember_d853264a-80cd-456e-abfb-0fc2ea576d7b" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_see_A20202023ThreeYearPerformanceShareUnitsAwardsMember_c5098237-415a-47e6-bbfd-f09f9a622033" xlink:href="see-20230930.xsd#see_A20202023ThreeYearPerformanceShareUnitsAwardsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:to="loc_see_A20202023ThreeYearPerformanceShareUnitsAwardsMember_c5098237-415a-47e6-bbfd-f09f9a622033" xlink:type="arc" order="13"/>
  </link:definitionLink>
</link:linkbase>
