<?xml version="1.0" encoding="US-ASCII"?>
<!--XBRL Document Created with Wdesk from Workiva-->
<!-- -->
<link:linkbase xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <link:roleRef roleURI="http://www.interface.com/role/AcquisitionOfNora" xlink:href="tile-20190929.xsd#AcquisitionOfNora" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/AcquisitionOfNoraNarrativeDetails" xlink:href="tile-20190929.xsd#AcquisitionOfNoraNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/AcquisitionOfNoraProFormaInformationDetails" xlink:href="tile-20190929.xsd#AcquisitionOfNoraProFormaInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/AcquisitionOfNoraScheduleOfAssetsAcquiredAndLiabilitiesAssumedDetails" xlink:href="tile-20190929.xsd#AcquisitionOfNoraScheduleOfAssetsAcquiredAndLiabilitiesAssumedDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/AcquisitionOfNoraTables" xlink:href="tile-20190929.xsd#AcquisitionOfNoraTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ConsolidatedCondensedBalanceSheetsCurrentPeriodUnaudited" xlink:href="tile-20190929.xsd#ConsolidatedCondensedBalanceSheetsCurrentPeriodUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ConsolidatedCondensedStatementsOfCashFlowsUnaudited" xlink:href="tile-20190929.xsd#ConsolidatedCondensedStatementsOfCashFlowsUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ConsolidatedCondensedStatementsOfOperationsUnaudited" xlink:href="tile-20190929.xsd#ConsolidatedCondensedStatementsOfOperationsUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:href="tile-20190929.xsd#ConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/DerivativeInstruments" xlink:href="tile-20190929.xsd#DerivativeInstruments" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/DerivativeInstrumentsCashFlowHedgesIncludedInAccumulatedOtherComprehensiveIncomeLossDetails" xlink:href="tile-20190929.xsd#DerivativeInstrumentsCashFlowHedgesIncludedInAccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/DerivativeInstrumentsFairValueOfDerivativeInstrumentsDetails" xlink:href="tile-20190929.xsd#DerivativeInstrumentsFairValueOfDerivativeInstrumentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/DerivativeInstrumentsNarrativeDetails" xlink:href="tile-20190929.xsd#DerivativeInstrumentsNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/DerivativeInstrumentsTables" xlink:href="tile-20190929.xsd#DerivativeInstrumentsTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/DocumentAndEntityInformation" xlink:href="tile-20190929.xsd#DocumentAndEntityInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/EarningsPerShare" xlink:href="tile-20190929.xsd#EarningsPerShare" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/EarningsPerShareCalculationOfIncomeLossPerSharesDetails" xlink:href="tile-20190929.xsd#EarningsPerShareCalculationOfIncomeLossPerSharesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/EarningsPerShareDistributedAndUndistributedEarningsDetails" xlink:href="tile-20190929.xsd#EarningsPerShareDistributedAndUndistributedEarningsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/EarningsPerShareNarrativeDetails" xlink:href="tile-20190929.xsd#EarningsPerShareNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/EarningsPerShareTables" xlink:href="tile-20190929.xsd#EarningsPerShareTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/EmployeeBenefitPlans" xlink:href="tile-20190929.xsd#EmployeeBenefitPlans" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/EmployeeBenefitPlansNetPeriodicBenefitCostDetails" xlink:href="tile-20190929.xsd#EmployeeBenefitPlansNetPeriodicBenefitCostDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/EmployeeBenefitPlansTables" xlink:href="tile-20190929.xsd#EmployeeBenefitPlansTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/IncomeTaxesIncomeTaxes" xlink:href="tile-20190929.xsd#IncomeTaxesIncomeTaxes" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/IncomeTaxesNarrativeDetails" xlink:href="tile-20190929.xsd#IncomeTaxesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/Inventories" xlink:href="tile-20190929.xsd#Inventories" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/InventoriesDetails" xlink:href="tile-20190929.xsd#InventoriesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/InventoriesTables" xlink:href="tile-20190929.xsd#InventoriesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ItemsReclassifiedFromOtherComprehensiveIncome" xlink:href="tile-20190929.xsd#ItemsReclassifiedFromOtherComprehensiveIncome" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ItemsReclassifiedFromOtherComprehensiveIncomeDetails" xlink:href="tile-20190929.xsd#ItemsReclassifiedFromOtherComprehensiveIncomeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/Leases" xlink:href="tile-20190929.xsd#Leases" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/LeasesBalanceSheetInformationDetails" xlink:href="tile-20190929.xsd#LeasesBalanceSheetInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/LeasesLeaseCostsDetails" xlink:href="tile-20190929.xsd#LeasesLeaseCostsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/LeasesMaturityOfLeasePaymentsDetails" xlink:href="tile-20190929.xsd#LeasesMaturityOfLeasePaymentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/LeasesMinimumRentCommitmentsUnderOperatingLeasesDetails" xlink:href="tile-20190929.xsd#LeasesMinimumRentCommitmentsUnderOperatingLeasesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/LeasesNarrativeDetails" xlink:href="tile-20190929.xsd#LeasesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/LeasesTables" xlink:href="tile-20190929.xsd#LeasesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/LongTermDebt" xlink:href="tile-20190929.xsd#LongTermDebt" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/LongTermDebtNarrativeDetails" xlink:href="tile-20190929.xsd#LongTermDebtNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/RestructuringAndAssetImpairmentCharges" xlink:href="tile-20190929.xsd#RestructuringAndAssetImpairmentCharges" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/RestructuringAndAssetImpairmentChargesNarrativeDetails" xlink:href="tile-20190929.xsd#RestructuringAndAssetImpairmentChargesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/RestructuringAndAssetImpairmentChargesRestructuringActivitiesDetails" xlink:href="tile-20190929.xsd#RestructuringAndAssetImpairmentChargesRestructuringActivitiesDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/RestructuringAndAssetImpairmentChargesTables" xlink:href="tile-20190929.xsd#RestructuringAndAssetImpairmentChargesTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/RevenueRecognition" xlink:href="tile-20190929.xsd#RevenueRecognition" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/RevenueRecognitionDisaggregationOfRevenueDetails" xlink:href="tile-20190929.xsd#RevenueRecognitionDisaggregationOfRevenueDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/RevenueRecognitionNarrativeDetails" xlink:href="tile-20190929.xsd#RevenueRecognitionNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/RevenueRecognitionTables" xlink:href="tile-20190929.xsd#RevenueRecognitionTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SegmentInformation" xlink:href="tile-20190929.xsd#SegmentInformation" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SegmentInformationNarrativeDetails" xlink:href="tile-20190929.xsd#SegmentInformationNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SegmentInformationOperatingSegmentsDepreciationAmortizationAndAssetsDetails" xlink:href="tile-20190929.xsd#SegmentInformationOperatingSegmentsDepreciationAmortizationAndAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SegmentInformationOperatingSegmentsDetails" xlink:href="tile-20190929.xsd#SegmentInformationOperatingSegmentsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SegmentInformationReconciliationOfSegmentAssetsDetails" xlink:href="tile-20190929.xsd#SegmentInformationReconciliationOfSegmentAssetsDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SegmentInformationTables" xlink:href="tile-20190929.xsd#SegmentInformationTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ShareholdersEquity" xlink:href="tile-20190929.xsd#ShareholdersEquity" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ShareholdersEquityActivityInShareholdersEquityDetails" xlink:href="tile-20190929.xsd#ShareholdersEquityActivityInShareholdersEquityDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ShareholdersEquityNarrativeDetails" xlink:href="tile-20190929.xsd#ShareholdersEquityNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ShareholdersEquityPerformanceSharesOutstandingDetails" xlink:href="tile-20190929.xsd#ShareholdersEquityPerformanceSharesOutstandingDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ShareholdersEquityRestrictedStockOutstandingDetails" xlink:href="tile-20190929.xsd#ShareholdersEquityRestrictedStockOutstandingDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/ShareholdersEquityTables" xlink:href="tile-20190929.xsd#ShareholdersEquityTables" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SignificantAccountingPoliciesPolicies" xlink:href="tile-20190929.xsd#SignificantAccountingPoliciesPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SummaryOfSignificantAccountingPolicies" xlink:href="tile-20190929.xsd#SummaryOfSignificantAccountingPolicies" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:href="tile-20190929.xsd#SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SupplementalCashFlowInformationDetails" xlink:href="tile-20190929.xsd#SupplementalCashFlowInformationDetails" xlink:type="simple" />
  <link:roleRef roleURI="http://www.interface.com/role/SupplementalCashFlowInformationSupplementalCashFlowInformation" xlink:href="tile-20190929.xsd#SupplementalCashFlowInformationSupplementalCashFlowInformation" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" />
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" />
  <link:definitionLink xlink:role="http://www.interface.com/role/AcquisitionOfNora" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/AcquisitionOfNoraNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_49B5549F6956BAA3ED1D13E86555E0B4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_49B5549F6956BAA3ED1D13E86555E0B4" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_AFEB6AD373635B2057F713E86555EBB5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_49B5549F6956BAA3ED1D13E86555E0B4" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_AFEB6AD373635B2057F713E86555EBB5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_59E77CDABD30D01C7BA813E86555A00F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_AFEB6AD373635B2057F713E86555EBB5" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_59E77CDABD30D01C7BA813E86555A00F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_59E77CDABD30D01C7BA813E86555A00F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_AFEB6AD373635B2057F713E86555EBB5" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_59E77CDABD30D01C7BA813E86555A00F" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_NoraMember" xlink:label="loc_tile_NoraMember_411E4643029B2F9FB48E13E865565E1E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_59E77CDABD30D01C7BA813E86555A00F" xlink:to="loc_tile_NoraMember_411E4643029B2F9FB48E13E865565E1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_0AEA6D34CDFA34AF03E813E865562109" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_49B5549F6956BAA3ED1D13E86555E0B4" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_0AEA6D34CDFA34AF03E813E865562109" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_8350DAD03A008300AF1313E86556D026_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_0AEA6D34CDFA34AF03E813E865562109" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_8350DAD03A008300AF1313E86556D026_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_8350DAD03A008300AF1313E86556D026" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_0AEA6D34CDFA34AF03E813E865562109" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_8350DAD03A008300AF1313E86556D026" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TrademarksAndTradeNamesMember" xlink:label="loc_us-gaap_TrademarksAndTradeNamesMember_88C6642761AECD36950713E8655601FC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_8350DAD03A008300AF1313E86556D026" xlink:to="loc_us-gaap_TrademarksAndTradeNamesMember_88C6642761AECD36950713E8655601FC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_B52B6ED387F37F96196113E8655CE7BE" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_49B5549F6956BAA3ED1D13E86555E0B4" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_B52B6ED387F37F96196113E8655CE7BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_E05AB6A3A1B5E3DDC25B13E8655C7F0F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_B52B6ED387F37F96196113E8655CE7BE" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_E05AB6A3A1B5E3DDC25B13E8655C7F0F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_E05AB6A3A1B5E3DDC25B13E8655C7F0F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_B52B6ED387F37F96196113E8655CE7BE" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_E05AB6A3A1B5E3DDC25B13E8655C7F0F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DevelopedTechnologyRightsMember" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_91FCBF932535D155C63E13E8655CE22B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_E05AB6A3A1B5E3DDC25B13E8655C7F0F" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_91FCBF932535D155C63E13E8655CE22B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OrderOrProductionBacklogMember" xlink:label="loc_us-gaap_OrderOrProductionBacklogMember_D4E51CEBACF09CA7A1D113E8655DD9B4" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_E05AB6A3A1B5E3DDC25B13E8655C7F0F" xlink:to="loc_us-gaap_OrderOrProductionBacklogMember_D4E51CEBACF09CA7A1D113E8655DD9B4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_09D76F5062C78A55430C13E8655D80DB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_09D76F5062C78A55430C13E8655D80DB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashAcquiredFromAcquisition" xlink:label="loc_us-gaap_CashAcquiredFromAcquisition_C40C4F42B1EE8453214013E8655DD2FA" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_us-gaap_CashAcquiredFromAcquisition_C40C4F42B1EE8453214013E8655DD2FA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_42A4A37276368E6FF83913E8655D2177" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_42A4A37276368E6FF83913E8655D2177" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities" xlink:label="loc_tile_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities_FF10CE5D23A25DAC251113E8655D6781" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_tile_BusinessCombinationProvisionalInformationInitialAccountingIncompleteAdjustmentDeferredTaxLiabilities_FF10CE5D23A25DAC251113E8655D6781" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_GoodwillPurchaseAccountingAdjustments" xlink:label="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_AE5E6794E88F2DF3786F13E8655DD91A" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_us-gaap_GoodwillPurchaseAccountingAdjustments_AE5E6794E88F2DF3786F13E8655DD91A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_7D1D850C094FEB6A51DF13E8655E8B8B" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_7D1D850C094FEB6A51DF13E8655E8B8B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_4A23865C8F149EA29FE213E8655E0FA6" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_4A23865C8F149EA29FE213E8655E0FA6" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedStepupOfInventory" xlink:label="loc_tile_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedStepupOfInventory_412361186213050E843F13E8655E4702" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_3296C471B6E2C6E3F15A13E8655D40BF" xlink:to="loc_tile_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedStepupOfInventory_412361186213050E843F13E8655E4702" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/AcquisitionOfNoraProFormaInformationDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_22FC87287062A497DE6713E8653A506C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_9DD7DEEA91A0151F709E13E86539577A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_22FC87287062A497DE6713E8653A506C" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_9DD7DEEA91A0151F709E13E86539577A" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_B1C9B54E1E882DAEEF6213E86539E78D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_9DD7DEEA91A0151F709E13E86539577A" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_B1C9B54E1E882DAEEF6213E86539E78D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A06F8C256942FEEB95C13E8653ACE1A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_B1C9B54E1E882DAEEF6213E86539E78D" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A06F8C256942FEEB95C13E8653ACE1A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A06F8C256942FEEB95C13E8653ACE1A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_B1C9B54E1E882DAEEF6213E86539E78D" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A06F8C256942FEEB95C13E8653ACE1A" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_NoraMember" xlink:label="loc_tile_NoraMember_E912FE3DC62EA7EF395013E8653A5CFA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_8A06F8C256942FEEB95C13E8653ACE1A" xlink:to="loc_tile_NoraMember_E912FE3DC62EA7EF395013E8653A5CFA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaRevenue" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_92B72DC5443C8B5E0B1913E8653A533A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_22FC87287062A497DE6713E8653A506C" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaRevenue_92B72DC5443C8B5E0B1913E8653A533A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss" xlink:label="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_9C4796060E12A018B5BE13E8653BC384" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_22FC87287062A497DE6713E8653A506C" xlink:to="loc_us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss_9C4796060E12A018B5BE13E8653BC384" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/AcquisitionOfNoraScheduleOfAssetsAcquiredAndLiabilitiesAssumedDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_9EFD227DC8A660B1269913E865450EDB" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5D2AA97C3EB2BDCDAC7A13E865449FCE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_9EFD227DC8A660B1269913E865450EDB" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5D2AA97C3EB2BDCDAC7A13E865449FCE" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_2052D36898249C83609F13E865445DEF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_5D2AA97C3EB2BDCDAC7A13E865449FCE" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_2052D36898249C83609F13E865445DEF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_251FC4A7C5CB5DEDCD7F13E865441BB1_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2052D36898249C83609F13E865445DEF" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_251FC4A7C5CB5DEDCD7F13E865441BB1_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_251FC4A7C5CB5DEDCD7F13E865441BB1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2052D36898249C83609F13E865445DEF" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_251FC4A7C5CB5DEDCD7F13E865441BB1" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_NoraMember" xlink:label="loc_tile_NoraMember_DD80118BD7D897EE1AE013E86544D42A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_251FC4A7C5CB5DEDCD7F13E865441BB1" xlink:to="loc_tile_NoraMember_DD80118BD7D897EE1AE013E86544D42A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_7D71FE949F59285A407913E8654AE6ED" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_9EFD227DC8A660B1269913E865450EDB" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_7D71FE949F59285A407913E8654AE6ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_020D92B5F1791F0DB4FA13E8654A8152" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_9EFD227DC8A660B1269913E865450EDB" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities_020D92B5F1791F0DB4FA13E8654A8152" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E59B081BB98235AB12413E8654A9C09" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_9EFD227DC8A660B1269913E865450EDB" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_5E59B081BB98235AB12413E8654A9C09" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_DDF0792880A9D4FCB89813E8654B881F" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_9EFD227DC8A660B1269913E865450EDB" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_DDF0792880A9D4FCB89813E8654B881F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_7EC1FDCBBBD74F38252713E8654BDD30" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_9EFD227DC8A660B1269913E865450EDB" xlink:to="loc_us-gaap_Goodwill_7EC1FDCBBBD74F38252713E8654BDD30" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/AcquisitionOfNoraTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/ConsolidatedCondensedBalanceSheetsCurrentPeriodUnaudited" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/ConsolidatedCondensedStatementsOfCashFlowsUnaudited" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/ConsolidatedCondensedStatementsOfOperationsUnaudited" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/ConsolidatedStatementsOfComprehensiveIncomeUnaudited" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/DerivativeInstruments" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/DerivativeInstrumentsCashFlowHedgesIncludedInAccumulatedOtherComprehensiveIncomeLossDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_20D9EEA47761E3DED99436FD4D554C64" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_18ED95467973C982F9BF36FD4D53D8F6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_20D9EEA47761E3DED99436FD4D554C64" xlink:to="loc_us-gaap_DerivativeTable_18ED95467973C982F9BF36FD4D53D8F6" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_A108AC6400F6C19A665F36FD4D5300ED" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_18ED95467973C982F9BF36FD4D53D8F6" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_A108AC6400F6C19A665F36FD4D5300ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_15AC77FC7D3930A10EC936FD4D5393FE_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_A108AC6400F6C19A665F36FD4D5300ED" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_15AC77FC7D3930A10EC936FD4D5393FE_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_15AC77FC7D3930A10EC936FD4D5393FE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_A108AC6400F6C19A665F36FD4D5300ED" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_15AC77FC7D3930A10EC936FD4D5393FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignExchangeForwardMember" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_3CB2DED69DD0690EA82236FD4D533560" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_15AC77FC7D3930A10EC936FD4D5393FE" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_3CB2DED69DD0690EA82236FD4D533560" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_10F3C16CFA4D0586FACE36FD4D54DA39" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_15AC77FC7D3930A10EC936FD4D5393FE" xlink:to="loc_us-gaap_InterestRateSwapMember_10F3C16CFA4D0586FACE36FD4D54DA39" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_83DAE059C0D661B00D1236FD4D549B91" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_18ED95467973C982F9BF36FD4D53D8F6" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_83DAE059C0D661B00D1236FD4D549B91" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_7C56A35B348ED1F7C78C36FD4D549E69_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_83DAE059C0D661B00D1236FD4D549B91" xlink:to="loc_us-gaap_HedgingRelationshipDomain_7C56A35B348ED1F7C78C36FD4D549E69_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_7C56A35B348ED1F7C78C36FD4D549E69" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_83DAE059C0D661B00D1236FD4D549B91" xlink:to="loc_us-gaap_HedgingRelationshipDomain_7C56A35B348ED1F7C78C36FD4D549E69" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowHedgingMember" xlink:label="loc_us-gaap_CashFlowHedgingMember_9BF5FDE34022FFB71AE236FD4D541D67" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_7C56A35B348ED1F7C78C36FD4D549E69" xlink:to="loc_us-gaap_CashFlowHedgingMember_9BF5FDE34022FFB71AE236FD4D541D67" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationAxis" xlink:label="loc_us-gaap_HedgingDesignationAxis_07D689CA5DEFD5E27E7C36FD4D5403F2" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_18ED95467973C982F9BF36FD4D53D8F6" xlink:to="loc_us-gaap_HedgingDesignationAxis_07D689CA5DEFD5E27E7C36FD4D5403F2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationDomain" xlink:label="loc_us-gaap_HedgingDesignationDomain_4B8C8CB1A299C3C4D5B636FD4D55E71B_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_07D689CA5DEFD5E27E7C36FD4D5403F2" xlink:to="loc_us-gaap_HedgingDesignationDomain_4B8C8CB1A299C3C4D5B636FD4D55E71B_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationDomain" xlink:label="loc_us-gaap_HedgingDesignationDomain_4B8C8CB1A299C3C4D5B636FD4D55E71B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_07D689CA5DEFD5E27E7C36FD4D5403F2" xlink:to="loc_us-gaap_HedgingDesignationDomain_4B8C8CB1A299C3C4D5B636FD4D55E71B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DesignatedAsHedgingInstrumentMember" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_A27184C03EC1BEBF6A8236FD4D555730" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_4B8C8CB1A299C3C4D5B636FD4D55E71B" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_A27184C03EC1BEBF6A8236FD4D555730" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_77EE3840AF94A177744136FD4D5505BA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_20D9EEA47761E3DED99436FD4D554C64" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAndTax_77EE3840AF94A177744136FD4D5505BA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_5D741C62D498F1C5EFCC36FD4D567606" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_20D9EEA47761E3DED99436FD4D554C64" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationBeforeTax_5D741C62D498F1C5EFCC36FD4D567606" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/DerivativeInstrumentsFairValueOfDerivativeInstrumentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_DECDC58DD239E39D351FF06086FE7FD2" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_EBDE30E99537C832128DF06086FA710A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_DECDC58DD239E39D351FF06086FE7FD2" xlink:to="loc_us-gaap_DerivativeTable_EBDE30E99537C832128DF06086FA710A" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_D034674665B3D3167FEBF06086FA0BE2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_EBDE30E99537C832128DF06086FA710A" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_D034674665B3D3167FEBF06086FA0BE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_110704061C8EC7DB85CEF06086FA090C_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_D034674665B3D3167FEBF06086FA0BE2" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_110704061C8EC7DB85CEF06086FA090C_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_110704061C8EC7DB85CEF06086FA090C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_D034674665B3D3167FEBF06086FA0BE2" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_110704061C8EC7DB85CEF06086FA090C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignExchangeForwardMember" xlink:label="loc_us-gaap_ForeignExchangeForwardMember_32380FFD9DC12F59C203F06086FA18D6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_110704061C8EC7DB85CEF06086FA090C" xlink:to="loc_us-gaap_ForeignExchangeForwardMember_32380FFD9DC12F59C203F06086FA18D6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_705711E4462A8D706321F06086FAEB87" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_110704061C8EC7DB85CEF06086FA090C" xlink:to="loc_us-gaap_InterestRateSwapMember_705711E4462A8D706321F06086FAEB87" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationAxis" xlink:label="loc_us-gaap_HedgingDesignationAxis_61EE4EE48AFD82ED9133F06086FE3270" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_EBDE30E99537C832128DF06086FA710A" xlink:to="loc_us-gaap_HedgingDesignationAxis_61EE4EE48AFD82ED9133F06086FE3270" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationDomain" xlink:label="loc_us-gaap_HedgingDesignationDomain_F32E07CBC80F31B52563F06086FE052A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_HedgingDesignationAxis_61EE4EE48AFD82ED9133F06086FE3270" xlink:to="loc_us-gaap_HedgingDesignationDomain_F32E07CBC80F31B52563F06086FE052A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingDesignationDomain" xlink:label="loc_us-gaap_HedgingDesignationDomain_F32E07CBC80F31B52563F06086FE052A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_HedgingDesignationAxis_61EE4EE48AFD82ED9133F06086FE3270" xlink:to="loc_us-gaap_HedgingDesignationDomain_F32E07CBC80F31B52563F06086FE052A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DesignatedAsHedgingInstrumentMember" xlink:label="loc_us-gaap_DesignatedAsHedgingInstrumentMember_E8922372294DDB7AF7D6F06086FEBB85" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingDesignationDomain_F32E07CBC80F31B52563F06086FE052A" xlink:to="loc_us-gaap_DesignatedAsHedgingInstrumentMember_E8922372294DDB7AF7D6F06086FEBB85" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationAxis" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_AB2CE9832E9F4E216FFEF06086FE7158" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_EBDE30E99537C832128DF06086FA710A" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_AB2CE9832E9F4E216FFEF06086FE7158" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_8BDB30C7A3D32F2B9B9AF06086FEAEF0_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_AB2CE9832E9F4E216FFEF06086FE7158" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_8BDB30C7A3D32F2B9B9AF06086FEAEF0_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_BalanceSheetLocationDomain" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_8BDB30C7A3D32F2B9B9AF06086FEAEF0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_AB2CE9832E9F4E216FFEF06086FE7158" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_8BDB30C7A3D32F2B9B9AF06086FEAEF0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCurrentAssetsMember" xlink:label="loc_us-gaap_OtherCurrentAssetsMember_5973EC804CBA2393F135F06086FEA8EF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8BDB30C7A3D32F2B9B9AF06086FEAEF0" xlink:to="loc_us-gaap_OtherCurrentAssetsMember_5973EC804CBA2393F135F06086FEA8EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountsPayableAndAccruedLiabilitiesMember" xlink:label="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_D787ED5825F5FE2DF580F06086FEA1F6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8BDB30C7A3D32F2B9B9AF06086FEAEF0" xlink:to="loc_us-gaap_AccountsPayableAndAccruedLiabilitiesMember_D787ED5825F5FE2DF580F06086FEA1F6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherCurrentLiabilitiesMember" xlink:label="loc_us-gaap_OtherCurrentLiabilitiesMember_65E7CA597F9A40A2D608F06086FED2E5" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_8BDB30C7A3D32F2B9B9AF06086FEAEF0" xlink:to="loc_us-gaap_OtherCurrentLiabilitiesMember_65E7CA597F9A40A2D608F06086FED2E5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_E1314349C7614D212452F06086FE2AD1" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_EBDE30E99537C832128DF06086FA710A" xlink:to="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_E1314349C7614D212452F06086FE2AD1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_D9C4449DF5B8E1226A6DF06086FEF47D_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_E1314349C7614D212452F06086FE2AD1" xlink:to="loc_us-gaap_HedgingRelationshipDomain_D9C4449DF5B8E1226A6DF06086FEF47D_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_HedgingRelationshipDomain" xlink:label="loc_us-gaap_HedgingRelationshipDomain_D9C4449DF5B8E1226A6DF06086FEF47D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_E1314349C7614D212452F06086FE2AD1" xlink:to="loc_us-gaap_HedgingRelationshipDomain_D9C4449DF5B8E1226A6DF06086FEF47D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CashFlowHedgingMember" xlink:label="loc_us-gaap_CashFlowHedgingMember_CA56C34662B0FBC0CD25F06086FEA393" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_HedgingRelationshipDomain_D9C4449DF5B8E1226A6DF06086FEF47D" xlink:to="loc_us-gaap_CashFlowHedgingMember_CA56C34662B0FBC0CD25F06086FEA393" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeAssets" xlink:label="loc_us-gaap_DerivativeAssets_487142F8DE2A4AE7F923F06086FEF56A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_DECDC58DD239E39D351FF06086FE7FD2" xlink:to="loc_us-gaap_DerivativeAssets_487142F8DE2A4AE7F923F06086FEF56A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLiabilities" xlink:label="loc_us-gaap_DerivativeLiabilities_23667B8EA33B544A7417F06086FEE62D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_DECDC58DD239E39D351FF06086FE7FD2" xlink:to="loc_us-gaap_DerivativeLiabilities_23667B8EA33B544A7417F06086FEE62D" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/DerivativeInstrumentsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeLineItems" xlink:label="loc_us-gaap_DerivativeLineItems_79D7975F7CF73A3D9445F0608706C6D8" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeTable" xlink:label="loc_us-gaap_DerivativeTable_8B3DD74F58582CA7DA90F06087021D55" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DerivativeLineItems_79D7975F7CF73A3D9445F0608706C6D8" xlink:to="loc_us-gaap_DerivativeTable_8B3DD74F58582CA7DA90F06087021D55" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeInstrumentRiskAxis" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis_87E9D39D45BDB6D03C09F0608702E610" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DerivativeTable_8B3DD74F58582CA7DA90F06087021D55" xlink:to="loc_us-gaap_DerivativeInstrumentRiskAxis_87E9D39D45BDB6D03C09F0608702E610" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_89E0B4A825458D0046AAF0608702F165_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_87E9D39D45BDB6D03C09F0608702E610" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_89E0B4A825458D0046AAF0608702F165_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeContractTypeDomain" xlink:label="loc_us-gaap_DerivativeContractTypeDomain_89E0B4A825458D0046AAF0608702F165" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis_87E9D39D45BDB6D03C09F0608702E610" xlink:to="loc_us-gaap_DerivativeContractTypeDomain_89E0B4A825458D0046AAF0608702F165" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_InterestRateSwap1Member" xlink:label="loc_tile_InterestRateSwap1Member_F6B057E6364AF0D9B2ADF060870225A5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_89E0B4A825458D0046AAF0608702F165" xlink:to="loc_tile_InterestRateSwap1Member_F6B057E6364AF0D9B2ADF060870225A5" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_InterestRateSwap2Member" xlink:label="loc_tile_InterestRateSwap2Member_2C112C3EE33F66A09EB1F0608702598E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_89E0B4A825458D0046AAF0608702F165" xlink:to="loc_tile_InterestRateSwap2Member_2C112C3EE33F66A09EB1F0608702598E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_InterestRateSwapMember" xlink:label="loc_us-gaap_InterestRateSwapMember_E30A29687B1239166A8DF0608706E06D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeContractTypeDomain_89E0B4A825458D0046AAF0608702F165" xlink:to="loc_us-gaap_InterestRateSwapMember_E30A29687B1239166A8DF0608706E06D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DerivativeNotionalAmount" xlink:label="loc_us-gaap_DerivativeNotionalAmount_D0AE3ECFB7E19385FC60F06087067D0D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DerivativeLineItems_79D7975F7CF73A3D9445F0608706C6D8" xlink:to="loc_us-gaap_DerivativeNotionalAmount_D0AE3ECFB7E19385FC60F06087067D0D" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/DerivativeInstrumentsTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/DocumentAndEntityInformation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/EarningsPerShare" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/EarningsPerShareCalculationOfIncomeLossPerSharesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EarningsPerShareDilutedLineItems" xlink:label="loc_us-gaap_EarningsPerShareDilutedLineItems_D0B8BC790992AD3A9E0113E866ADE40F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable" xlink:label="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_09B417749643EFD4470513E866AC7639" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D0B8BC790992AD3A9E0113E866ADE40F" xlink:to="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_09B417749643EFD4470513E866AC7639" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_EEC37C67882003D956A413E866AC8BDB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfEarningsPerShareDilutedByCommonClassTable_09B417749643EFD4470513E866AC7639" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_EEC37C67882003D956A413E866AC8BDB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_EB24A9BFB6AB8B871DEA13E866ADE0E3_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_EEC37C67882003D956A413E866AC8BDB" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_EB24A9BFB6AB8B871DEA13E866ADE0E3_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_EB24A9BFB6AB8B871DEA13E866ADE0E3" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_EEC37C67882003D956A413E866AC8BDB" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_EB24A9BFB6AB8B871DEA13E866ADE0E3" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_ParticipatingSecuritiesMember" xlink:label="loc_tile_ParticipatingSecuritiesMember_C4DDC1B6DAB4AC1A9B2513E866ADDBE9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_EB24A9BFB6AB8B871DEA13E866ADE0E3" xlink:to="loc_tile_ParticipatingSecuritiesMember_C4DDC1B6DAB4AC1A9B2513E866ADDBE9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_47C17655F7B85734939C13E866AD04EA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D0B8BC790992AD3A9E0113E866ADE40F" xlink:to="loc_us-gaap_NetIncomeLoss_47C17655F7B85734939C13E866AD04EA" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_WeightedAverageSharesOutstandingBasicExcludingParticipatingSecurities" xlink:label="loc_tile_WeightedAverageSharesOutstandingBasicExcludingParticipatingSecurities_132DA58852C9F10BDFB013E866AED043" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D0B8BC790992AD3A9E0113E866ADE40F" xlink:to="loc_tile_WeightedAverageSharesOutstandingBasicExcludingParticipatingSecurities_132DA58852C9F10BDFB013E866AED043" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_ParticipatingSecurities" xlink:label="loc_tile_ParticipatingSecurities_86E99252EC5E27DAABE213E866AE10EE" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D0B8BC790992AD3A9E0113E866ADE40F" xlink:to="loc_tile_ParticipatingSecurities_86E99252EC5E27DAABE213E866AE10EE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2AFA859B07A6BDD0991613E866AE87F0" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D0B8BC790992AD3A9E0113E866ADE40F" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_2AFA859B07A6BDD0991613E866AE87F0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_F2280D92E858E29BFB2E13E866AE5F74" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D0B8BC790992AD3A9E0113E866ADE40F" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_F2280D92E858E29BFB2E13E866AE5F74" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_860CEDA5C04C155E616113E866AE74FC" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareDilutedLineItems_D0B8BC790992AD3A9E0113E866ADE40F" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_860CEDA5C04C155E616113E866AE74FC" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/EarningsPerShareDistributedAndUndistributedEarningsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/EarningsPerShareNarrativeDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/EarningsPerShareTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/EmployeeBenefitPlans" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/EmployeeBenefitPlansNetPeriodicBenefitCostDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_77D01884031F2E441277381139632914" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable" xlink:label="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_8FA12BD8DD411B28B0E838113961DE21" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_77D01884031F2E441277381139632914" xlink:to="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_8FA12BD8DD411B28B0E838113961DE21" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanSponsorLocationAxis" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationAxis_EEC8B291045BFC48FDD4381139614D7A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_8FA12BD8DD411B28B0E838113961DE21" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationAxis_EEC8B291045BFC48FDD4381139614D7A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanSponsorLocationDomain" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_4ABA95A1CB65EE754E6238113961DBD9_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_EEC8B291045BFC48FDD4381139614D7A" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_4ABA95A1CB65EE754E6238113961DBD9_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanSponsorLocationDomain" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_4ABA95A1CB65EE754E6238113961DBD9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_EEC8B291045BFC48FDD4381139614D7A" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_4ABA95A1CB65EE754E6238113961DBD9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ForeignPlanMember" xlink:label="loc_us-gaap_ForeignPlanMember_1A151FD2574B0F92818A3811396159B2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_4ABA95A1CB65EE754E6238113961DBD9" xlink:to="loc_us-gaap_ForeignPlanMember_1A151FD2574B0F92818A3811396159B2" xlink:type="arc" />
    <link:loc xlink:href="https://xbrl.sec.gov/country/2017/country-2017-01-31.xsd#country_US" xlink:label="loc_country_US_1B0F6795C476518FB54338113962BDD7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_4ABA95A1CB65EE754E6238113961DBD9" xlink:to="loc_country_US_1B0F6795C476518FB54338113962BDD7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanTypeAxis" xlink:label="loc_us-gaap_RetirementPlanTypeAxis_2FA83CD3C81C1F432CF9381139626FD0" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansDisclosuresTable_8FA12BD8DD411B28B0E838113961DE21" xlink:to="loc_us-gaap_RetirementPlanTypeAxis_2FA83CD3C81C1F432CF9381139626FD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanTypeDomain" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_949F378AE31B9E76629F38113962D6E8_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_2FA83CD3C81C1F432CF9381139626FD0" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_949F378AE31B9E76629F38113962D6E8_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetirementPlanTypeDomain" xlink:label="loc_us-gaap_RetirementPlanTypeDomain_949F378AE31B9E76629F38113962D6E8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanTypeAxis_2FA83CD3C81C1F432CF9381139626FD0" xlink:to="loc_us-gaap_RetirementPlanTypeDomain_949F378AE31B9E76629F38113962D6E8" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_SalaryContinuationPlanMember" xlink:label="loc_tile_SalaryContinuationPlanMember_174B4F8ABBB3978D1637381139630CCB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_949F378AE31B9E76629F38113962D6E8" xlink:to="loc_tile_SalaryContinuationPlanMember_174B4F8ABBB3978D1637381139630CCB" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_NoraDefinedBenefitPlanMember" xlink:label="loc_tile_NoraDefinedBenefitPlanMember_4E8EB00D5BBAE96D9F2A38113963E694" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanTypeDomain_949F378AE31B9E76629F38113962D6E8" xlink:to="loc_tile_NoraDefinedBenefitPlanMember_4E8EB00D5BBAE96D9F2A38113963E694" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_DDFE9A646F3C1CC4104A381139634261" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_77D01884031F2E441277381139632914" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_DDFE9A646F3C1CC4104A381139634261" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_A93F4FF1F50FA1DCCCD638113968145D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_77D01884031F2E441277381139632914" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_A93F4FF1F50FA1DCCCD638113968145D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_85D80BDB5FB7BB3FA91D3811396874C1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_77D01884031F2E441277381139632914" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_85D80BDB5FB7BB3FA91D3811396874C1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_ED5AC46A784B927375A43811396829E4" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_77D01884031F2E441277381139632914" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_ED5AC46A784B927375A43811396829E4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_F74E2DA60F5BC6455E92381139686921" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_77D01884031F2E441277381139632914" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_F74E2DA60F5BC6455E92381139686921" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_128C46778E180088690E38113968B9E0" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems_77D01884031F2E441277381139632914" xlink:to="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_128C46778E180088690E38113968B9E0" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/EmployeeBenefitPlansTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/IncomeTaxesIncomeTaxes" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/Inventories" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/InventoriesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/InventoriesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/ItemsReclassifiedFromOtherComprehensiveIncome" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/ItemsReclassifiedFromOtherComprehensiveIncomeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems" xlink:label="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems_4E9C3E4B0435ABBFDCE713E864E0471B" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable" xlink:label="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_4A1BDFEB9FE71339E2A313E864DF5B0F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems_4E9C3E4B0435ABBFDCE713E864E0471B" xlink:to="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_4A1BDFEB9FE71339E2A313E864DF5B0F" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_F182BE3CE5CAC96CC8FC13E864DF19E0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ReclassificationOutOfAccumulatedOtherComprehensiveIncomeTable_4A1BDFEB9FE71339E2A313E864DF5B0F" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_F182BE3CE5CAC96CC8FC13E864DF19E0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_2BB7A86E5FD9BEF5490513E864DF084E_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_F182BE3CE5CAC96CC8FC13E864DF19E0" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_2BB7A86E5FD9BEF5490513E864DF084E_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_2BB7A86E5FD9BEF5490513E864DF084E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_F182BE3CE5CAC96CC8FC13E864DF19E0" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_2BB7A86E5FD9BEF5490513E864DF084E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherExpenseMember" xlink:label="loc_us-gaap_OtherExpenseMember_E1EDEC4E6B43965DA14913E864E0473C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_2BB7A86E5FD9BEF5490513E864DF084E" xlink:to="loc_us-gaap_OtherExpenseMember_E1EDEC4E6B43965DA14913E864E0473C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_BA22DD03A435DCE7106E13E864E084DE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReclassificationAdjustmentOutOfAccumulatedOtherComprehensiveIncomeOnDerivativesLineItems_4E9C3E4B0435ABBFDCE713E864E0471B" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIPensionAndOtherPostretirementBenefitPlansNetOfTax_BA22DD03A435DCE7106E13E864E084DE" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/Leases" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/LeasesBalanceSheetInformationDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/LeasesLeaseCostsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/LeasesMaturityOfLeasePaymentsDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/LeasesMinimumRentCommitmentsUnderOperatingLeasesDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/LeasesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionLineItems" xlink:label="loc_us-gaap_LesseeLeaseDescriptionLineItems_021209B5673220DFE3CA13E865DA61B4" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LesseeLeaseDescriptionTable" xlink:label="loc_us-gaap_LesseeLeaseDescriptionTable_0DE1714CAC4A79B2B6A813E865D8904A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_021209B5673220DFE3CA13E865DA61B4" xlink:to="loc_us-gaap_LesseeLeaseDescriptionTable_0DE1714CAC4A79B2B6A813E865D8904A" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_8B09058EE8707B4292D213E865D9E44B" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LesseeLeaseDescriptionTable_0DE1714CAC4A79B2B6A813E865D8904A" xlink:to="loc_srt_RangeAxis_8B09058EE8707B4292D213E865D9E44B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_4D54DECB3DB2351005DB13E865D90A15_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_8B09058EE8707B4292D213E865D9E44B" xlink:to="loc_srt_RangeMember_4D54DECB3DB2351005DB13E865D90A15_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_4D54DECB3DB2351005DB13E865D90A15" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_8B09058EE8707B4292D213E865D9E44B" xlink:to="loc_srt_RangeMember_4D54DECB3DB2351005DB13E865D90A15" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_0B367FAA58F08F8BC03013E865D9140D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_4D54DECB3DB2351005DB13E865D90A15" xlink:to="loc_srt_MinimumMember_0B367FAA58F08F8BC03013E865D9140D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_58B6304F600EBDD779DA13E865D9E358" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_4D54DECB3DB2351005DB13E865D90A15" xlink:to="loc_srt_MaximumMember_58B6304F600EBDD779DA13E865D9E358" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_LesseeLeaseTermOfContract" xlink:label="loc_tile_LesseeLeaseTermOfContract_DE3B2B254EB4F8CF3B6213E865DAC0D7" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_021209B5673220DFE3CA13E865DA61B4" xlink:to="loc_tile_LesseeLeaseTermOfContract_DE3B2B254EB4F8CF3B6213E865DAC0D7" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_LesseeLeaseRenewalTerm" xlink:label="loc_tile_LesseeLeaseRenewalTerm_C7125A22E8EC1BB5027913E865DA92BC" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LesseeLeaseDescriptionLineItems_021209B5673220DFE3CA13E865DA61B4" xlink:to="loc_tile_LesseeLeaseRenewalTerm_C7125A22E8EC1BB5027913E865DA92BC" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/LeasesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/LongTermDebt" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/LongTermDebtNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentLineItems" xlink:label="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentTable" xlink:label="loc_us-gaap_DebtInstrumentTable_9C8679162F33BC0A1D8E13E8668EC131" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_DebtInstrumentTable_9C8679162F33BC0A1D8E13E8668EC131" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentAxis" xlink:label="loc_us-gaap_DebtInstrumentAxis_410F0C0D60F9EF3F368B13E8668EDBB0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_9C8679162F33BC0A1D8E13E8668EC131" xlink:to="loc_us-gaap_DebtInstrumentAxis_410F0C0D60F9EF3F368B13E8668EDBB0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_F0CF044C46CA53FC1DD213E8668F3FB6_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_410F0C0D60F9EF3F368B13E8668EDBB0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_F0CF044C46CA53FC1DD213E8668F3FB6_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentNameDomain" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_F0CF044C46CA53FC1DD213E8668F3FB6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_410F0C0D60F9EF3F368B13E8668EDBB0" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_F0CF044C46CA53FC1DD213E8668F3FB6" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_SyndicatedFacilityAgreementMember" xlink:label="loc_tile_SyndicatedFacilityAgreementMember_9964A1B884736D40F38413E8668F2831" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_F0CF044C46CA53FC1DD213E8668F3FB6" xlink:to="loc_tile_SyndicatedFacilityAgreementMember_9964A1B884736D40F38413E8668F2831" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeAxis" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_302B1C27308F598CFA8F13E8668F8A98" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_9C8679162F33BC0A1D8E13E8668EC131" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_302B1C27308F598CFA8F13E8668F8A98" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_0DC6BF5305E50C7E373E13E8668FE196_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_302B1C27308F598CFA8F13E8668F8A98" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_0DC6BF5305E50C7E373E13E8668FE196_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtTypeDomain" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_0DC6BF5305E50C7E373E13E8668FE196" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_302B1C27308F598CFA8F13E8668F8A98" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_0DC6BF5305E50C7E373E13E8668FE196" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_TermLoanMember" xlink:label="loc_tile_TermLoanMember_9541F72A03B628966B3413E866900505" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_0DC6BF5305E50C7E373E13E8668FE196" xlink:to="loc_tile_TermLoanMember_9541F72A03B628966B3413E866900505" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityAxis" xlink:label="loc_us-gaap_CreditFacilityAxis_DEE9BF82C0F86899898113E86690C2E5" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_9C8679162F33BC0A1D8E13E8668EC131" xlink:to="loc_us-gaap_CreditFacilityAxis_DEE9BF82C0F86899898113E86690C2E5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_DA5406C14CA3E6A4ED7613E866901315_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_DEE9BF82C0F86899898113E86690C2E5" xlink:to="loc_us-gaap_CreditFacilityDomain_DA5406C14CA3E6A4ED7613E866901315_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CreditFacilityDomain" xlink:label="loc_us-gaap_CreditFacilityDomain_DA5406C14CA3E6A4ED7613E866901315" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_DEE9BF82C0F86899898113E86690C2E5" xlink:to="loc_us-gaap_CreditFacilityDomain_DA5406C14CA3E6A4ED7613E866901315" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_OtherLineOfCreditMember" xlink:label="loc_tile_OtherLineOfCreditMember_13FC25BB65B44DE4B96D13E86690FE7D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_DA5406C14CA3E6A4ED7613E866901315" xlink:to="loc_tile_OtherLineOfCreditMember_13FC25BB65B44DE4B96D13E86690FE7D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_D2B7199A46EA5D47FD9813E86691E66D" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_9C8679162F33BC0A1D8E13E8668EC131" xlink:to="loc_srt_RangeAxis_D2B7199A46EA5D47FD9813E86691E66D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_FD01B3CAC474326D9C9013E866911189_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_D2B7199A46EA5D47FD9813E86691E66D" xlink:to="loc_srt_RangeMember_FD01B3CAC474326D9C9013E866911189_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_FD01B3CAC474326D9C9013E866911189" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_D2B7199A46EA5D47FD9813E86691E66D" xlink:to="loc_srt_RangeMember_FD01B3CAC474326D9C9013E866911189" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_9806CDC8F35B1BD088D913E8669170EF" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_FD01B3CAC474326D9C9013E866911189" xlink:to="loc_srt_MinimumMember_9806CDC8F35B1BD088D913E8669170EF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_CDC8BA668BEFF0D866EC13E866914C3B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_FD01B3CAC474326D9C9013E866911189" xlink:to="loc_srt_MaximumMember_CDC8BA668BEFF0D866EC13E866914C3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_2F08DF1DFDE4FAE13F0213E86692659E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_2F08DF1DFDE4FAE13F0213E86692659E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_4605238D858EA1F7720D13E866923A1D" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumNet_4605238D858EA1F7720D13E866923A1D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongTermDebt" xlink:label="loc_us-gaap_LongTermDebt_B70ED5FA97D23F8C943E13E866929069" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_LongTermDebt_B70ED5FA97D23F8C943E13E866929069" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCredit" xlink:label="loc_us-gaap_LineOfCredit_E77B9C8DFA409F3741C613E8669268D9" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_LineOfCredit_E77B9C8DFA409F3741C613E8669268D9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LettersOfCreditOutstandingAmount" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount_09A2CC5BD0BB0A15EA9D13E8669274C5" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_LettersOfCreditOutstandingAmount_09A2CC5BD0BB0A15EA9D13E8669274C5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LongtermDebtWeightedAverageInterestRate" xlink:label="loc_us-gaap_LongtermDebtWeightedAverageInterestRate_BA56490D8A2F52AB0A8813E866929808" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_LongtermDebtWeightedAverageInterestRate_BA56490D8A2F52AB0A8813E866929808" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_8612FFE22D3A27ECFD3713E86693E91B" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_8612FFE22D3A27ECFD3713E86693E91B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_LineOfCreditFacilityInterestRateDuringPeriod" xlink:label="loc_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_62702235C6C799D7E2FF13E86693A7FA" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_9C465853B65B387967E913E866910254" xlink:to="loc_us-gaap_LineOfCreditFacilityInterestRateDuringPeriod_62702235C6C799D7E2FF13E86693A7FA" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/RestructuringAndAssetImpairmentCharges" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/RestructuringAndAssetImpairmentChargesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveLineItems" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_A300629E431C1619D9361D842DF73570" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_A300629E431C1619D9361D842DF73570" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_7C8B2319A9CB99FE5FAD1D842DF84025" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_A300629E431C1619D9361D842DF73570" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_7C8B2319A9CB99FE5FAD1D842DF84025" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_E2C2FE42594DEAC910271D842DF843C2_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_7C8B2319A9CB99FE5FAD1D842DF84025" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_E2C2FE42594DEAC910271D842DF843C2_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_E2C2FE42594DEAC910271D842DF843C2" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_7C8B2319A9CB99FE5FAD1D842DF84025" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_E2C2FE42594DEAC910271D842DF843C2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeSeveranceMember" xlink:label="loc_us-gaap_EmployeeSeveranceMember_6C69BA6BC274FF6B0AFD1D842DF908BB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_E2C2FE42594DEAC910271D842DF843C2" xlink:to="loc_us-gaap_EmployeeSeveranceMember_6C69BA6BC274FF6B0AFD1D842DF908BB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated" xlink:label="loc_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated_E6A18CFF04B60EDF17DE1D842DF9A028" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated_E6A18CFF04B60EDF17DE1D842DF9A028" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostsAndAssetImpairmentCharges" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_84653860B9E9F92CB3BD1D842DFAD4D3" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_84653860B9E9F92CB3BD1D842DFAD4D3" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SeveranceCosts1" xlink:label="loc_us-gaap_SeveranceCosts1_14B844C77D884DB76AEE1D842DFA4B27" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_us-gaap_SeveranceCosts1_14B844C77D884DB76AEE1D842DFA4B27" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AssetImpairmentCharges" xlink:label="loc_us-gaap_AssetImpairmentCharges_3C635FB06C48E8099AB01D842DFAC364" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_us-gaap_AssetImpairmentCharges_3C635FB06C48E8099AB01D842DFAC364" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherRestructuringCosts" xlink:label="loc_us-gaap_OtherRestructuringCosts_0D3270471BFDBBCE8C3E1D842DFA3D76" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_us-gaap_OtherRestructuringCosts_0D3270471BFDBBCE8C3E1D842DFA3D76" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_ECAA2B0662028F252A751D842DFA8987" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCostRemaining1_ECAA2B0662028F252A751D842DFA8987" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_RestructuringExpectedSavings" xlink:label="loc_tile_RestructuringExpectedSavings_F56F8DC5F57726DD88B91D842DFA5245" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_tile_RestructuringExpectedSavings_F56F8DC5F57726DD88B91D842DFA5245" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_B412CD528806C52F04BF1D842DFB1212" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_6B8ED2B791CBD49EEF9C1D842DF9F713" xlink:to="loc_us-gaap_RestructuringCharges_B412CD528806C52F04BF1D842DFB1212" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/RestructuringAndAssetImpairmentChargesRestructuringActivitiesDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_FFB02E89551DA404238B41FC6199A26C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_644EA973932DAD7F83BB41FC61931AD8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_FFB02E89551DA404238B41FC6199A26C" xlink:to="loc_us-gaap_StatementTable_644EA973932DAD7F83BB41FC61931AD8" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanAxis" xlink:label="loc_us-gaap_RestructuringPlanAxis_184FDE7DB46980DB2F2941FC6194F787" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_644EA973932DAD7F83BB41FC61931AD8" xlink:to="loc_us-gaap_RestructuringPlanAxis_184FDE7DB46980DB2F2941FC6194F787" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_46D00BEA2E9A83DA6E0741FC6195659A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_184FDE7DB46980DB2F2941FC6194F787" xlink:to="loc_us-gaap_RestructuringPlanDomain_46D00BEA2E9A83DA6E0741FC6195659A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringPlanDomain" xlink:label="loc_us-gaap_RestructuringPlanDomain_46D00BEA2E9A83DA6E0741FC6195659A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_184FDE7DB46980DB2F2941FC6194F787" xlink:to="loc_us-gaap_RestructuringPlanDomain_46D00BEA2E9A83DA6E0741FC6195659A" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_A2018RestructuringPlanMember" xlink:label="loc_tile_A2018RestructuringPlanMember_49C17C63C08B67D0E8E141FC6195CA3D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_46D00BEA2E9A83DA6E0741FC6195659A" xlink:to="loc_tile_A2018RestructuringPlanMember_49C17C63C08B67D0E8E141FC6195CA3D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCostAndReserveAxis" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_CFD952F94E33D0EB252D41FC61955EF7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_644EA973932DAD7F83BB41FC61931AD8" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_CFD952F94E33D0EB252D41FC61955EF7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_5552A1C08102C139DAAD41FC6196684D_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_CFD952F94E33D0EB252D41FC61955EF7" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_5552A1C08102C139DAAD41FC6196684D_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfRestructuringDomain" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_5552A1C08102C139DAAD41FC6196684D" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_CFD952F94E33D0EB252D41FC61955EF7" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_5552A1C08102C139DAAD41FC6196684D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeSeveranceMember" xlink:label="loc_us-gaap_EmployeeSeveranceMember_CACAD1D782C2EDCDEBD441FC6196C017" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_5552A1C08102C139DAAD41FC6196684D" xlink:to="loc_us-gaap_EmployeeSeveranceMember_CACAD1D782C2EDCDEBD441FC6196C017" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherRestructuringMember" xlink:label="loc_us-gaap_OtherRestructuringMember_45BDF6CAEB91EBE94B4A41FC61999C3B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_5552A1C08102C139DAAD41FC6196684D" xlink:to="loc_us-gaap_OtherRestructuringMember_45BDF6CAEB91EBE94B4A41FC61999C3B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserveRollForward" xlink:label="loc_us-gaap_RestructuringReserveRollForward_0876E0B5985389BC40DA41FC61999D10" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_FFB02E89551DA404238B41FC6199A26C" xlink:to="loc_us-gaap_RestructuringReserveRollForward_0876E0B5985389BC40DA41FC61999D10" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringReserve" xlink:label="loc_us-gaap_RestructuringReserve_7473FC167636427882BC41FC6199C290" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_0876E0B5985389BC40DA41FC61999D10" xlink:to="loc_us-gaap_RestructuringReserve_7473FC167636427882BC41FC6199C290" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PaymentsForRestructuring" xlink:label="loc_us-gaap_PaymentsForRestructuring_EB1F6A398F520FB07BDA41FC619A23D7" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_0876E0B5985389BC40DA41FC61999D10" xlink:to="loc_us-gaap_PaymentsForRestructuring_EB1F6A398F520FB07BDA41FC619A23D7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestructuringCharges" xlink:label="loc_us-gaap_RestructuringCharges_21D83D8ACB8C8E1B91DF41FC619A6806" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_0876E0B5985389BC40DA41FC61999D10" xlink:to="loc_us-gaap_RestructuringCharges_21D83D8ACB8C8E1B91DF41FC619A6806" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/RestructuringAndAssetImpairmentChargesTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/RevenueRecognition" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/RevenueRecognitionDisaggregationOfRevenueDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_D62FA9D4CEADDE1C1C5113E866E699AF" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_0E0C5C1C385911DA258313E866E50CA9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_D62FA9D4CEADDE1C1C5113E866E699AF" xlink:to="loc_us-gaap_StatementTable_0E0C5C1C385911DA258313E866E50CA9" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_E384D032B21BBCEDBA2213E866E5154E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_0E0C5C1C385911DA258313E866E50CA9" xlink:to="loc_srt_StatementGeographicalAxis_E384D032B21BBCEDBA2213E866E5154E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_145044E168C1C8574CF313E866E55982_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_E384D032B21BBCEDBA2213E866E5154E" xlink:to="loc_srt_SegmentGeographicalDomain_145044E168C1C8574CF313E866E55982_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_145044E168C1C8574CF313E866E55982" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_E384D032B21BBCEDBA2213E866E5154E" xlink:to="loc_srt_SegmentGeographicalDomain_145044E168C1C8574CF313E866E55982" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AmericasMember" xlink:label="loc_srt_AmericasMember_0B1C865C1FA78EDFBDB913E866E5F994" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_145044E168C1C8574CF313E866E55982" xlink:to="loc_srt_AmericasMember_0B1C865C1FA78EDFBDB913E866E5F994" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_EuropeMember" xlink:label="loc_srt_EuropeMember_E6DF2C2BBD4A09D77AD713E866E68812" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_145044E168C1C8574CF313E866E55982" xlink:to="loc_srt_EuropeMember_E6DF2C2BBD4A09D77AD713E866E68812" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AsiaPacificMember" xlink:label="loc_srt_AsiaPacificMember_AD5471B016BF505F253513E866E6A684" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_145044E168C1C8574CF313E866E55982" xlink:to="loc_srt_AsiaPacificMember_AD5471B016BF505F253513E866E6A684" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_PercentOfRevenueDueToSalesToCustomers" xlink:label="loc_tile_PercentOfRevenueDueToSalesToCustomers_72662F58911CD9BCDAC313E866E64414" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_D62FA9D4CEADDE1C1C5113E866E699AF" xlink:to="loc_tile_PercentOfRevenueDueToSalesToCustomers_72662F58911CD9BCDAC313E866E64414" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/RevenueRecognitionNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_715F1F819E134D6EEEB513E866F0CE9C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_3BC965EFEB6DAA2CF40A13E866EE9ADE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_715F1F819E134D6EEEB513E866F0CE9C" xlink:to="loc_us-gaap_StatementTable_3BC965EFEB6DAA2CF40A13E866EE9ADE" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srt_ProductOrServiceAxis_1C753AAB16C4EBB12B9913E866EF61F1" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_3BC965EFEB6DAA2CF40A13E866EE9ADE" xlink:to="loc_srt_ProductOrServiceAxis_1C753AAB16C4EBB12B9913E866EF61F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_E843D143392A74A785DA13E866EF0974_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_1C753AAB16C4EBB12B9913E866EF61F1" xlink:to="loc_srt_ProductsAndServicesDomain_E843D143392A74A785DA13E866EF0974_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_E843D143392A74A785DA13E866EF0974" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_1C753AAB16C4EBB12B9913E866EF61F1" xlink:to="loc_srt_ProductsAndServicesDomain_E843D143392A74A785DA13E866EF0974" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_CarpetModularResilientFlooringAndRelatedProductsMember" xlink:label="loc_tile_CarpetModularResilientFlooringAndRelatedProductsMember_54C098FD026F9115997213E866EF4453" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_E843D143392A74A785DA13E866EF0974" xlink:to="loc_tile_CarpetModularResilientFlooringAndRelatedProductsMember_54C098FD026F9115997213E866EF4453" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_InstallationOfCarpetAndOtherFlooringRelatedMaterialMember" xlink:label="loc_tile_InstallationOfCarpetAndOtherFlooringRelatedMaterialMember_7E7FC779DDBAD9D47DEE13E866F0C461" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_E843D143392A74A785DA13E866EF0974" xlink:to="loc_tile_InstallationOfCarpetAndOtherFlooringRelatedMaterialMember_7E7FC779DDBAD9D47DEE13E866F0C461" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_PercentOfRevenueDueToContractsWithCustomers" xlink:label="loc_tile_PercentOfRevenueDueToContractsWithCustomers_97B3D4F0E9C8D61B1C1F13E866F075AC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_715F1F819E134D6EEEB513E866F0CE9C" xlink:to="loc_tile_PercentOfRevenueDueToContractsWithCustomers_97B3D4F0E9C8D61B1C1F13E866F075AC" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/RevenueRecognitionTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/SegmentInformation" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/SegmentInformationNarrativeDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/SegmentInformationOperatingSegmentsDepreciationAmortizationAndAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_666DF71EB0D22298240413E8650D1E88" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_09A172FB5B76C51CA6CA13E8650C5D14" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_666DF71EB0D22298240413E8650D1E88" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_09A172FB5B76C51CA6CA13E8650C5D14" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsAxis" xlink:label="loc_srt_ConsolidationItemsAxis_48D387A91B542C7540C713E8650CDC3F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_09A172FB5B76C51CA6CA13E8650C5D14" xlink:to="loc_srt_ConsolidationItemsAxis_48D387A91B542C7540C713E8650CDC3F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="loc_srt_ConsolidationItemsDomain_BD9A1A00F2B325EB8F1F13E8650D65B5_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_48D387A91B542C7540C713E8650CDC3F" xlink:to="loc_srt_ConsolidationItemsDomain_BD9A1A00F2B325EB8F1F13E8650D65B5_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="loc_srt_ConsolidationItemsDomain_BD9A1A00F2B325EB8F1F13E8650D65B5" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_48D387A91B542C7540C713E8650CDC3F" xlink:to="loc_srt_ConsolidationItemsDomain_BD9A1A00F2B325EB8F1F13E8650D65B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_A6AC841F9313E61AFE0C13E8650D4AC9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_BD9A1A00F2B325EB8F1F13E8650D65B5" xlink:to="loc_us-gaap_OperatingSegmentsMember_A6AC841F9313E61AFE0C13E8650D4AC9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_C767A41110B93F9ADB4A13E8650DF088" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_BD9A1A00F2B325EB8F1F13E8650D65B5" xlink:to="loc_us-gaap_CorporateNonSegmentMember_C767A41110B93F9ADB4A13E8650DF088" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_4C00354030C0D0723EF813E8650D8F19" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_666DF71EB0D22298240413E8650D1E88" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_4C00354030C0D0723EF813E8650D8F19" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/SegmentInformationOperatingSegmentsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_BD4EA3A486DDD885460013E8651ECB8C" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_00B374C71759D322AF1C13E8651BF9F8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_BD4EA3A486DDD885460013E8651ECB8C" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_00B374C71759D322AF1C13E8651BF9F8" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_StatementGeographicalAxis" xlink:label="loc_srt_StatementGeographicalAxis_C2AA643842BD6DDC9C7C13E8651CC565" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_00B374C71759D322AF1C13E8651BF9F8" xlink:to="loc_srt_StatementGeographicalAxis_C2AA643842BD6DDC9C7C13E8651CC565" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_1080C6AAF44AA03917EA13E8651CE897_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_C2AA643842BD6DDC9C7C13E8651CC565" xlink:to="loc_srt_SegmentGeographicalDomain_1080C6AAF44AA03917EA13E8651CE897_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_SegmentGeographicalDomain" xlink:label="loc_srt_SegmentGeographicalDomain_1080C6AAF44AA03917EA13E8651CE897" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_C2AA643842BD6DDC9C7C13E8651CC565" xlink:to="loc_srt_SegmentGeographicalDomain_1080C6AAF44AA03917EA13E8651CE897" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AmericasMember" xlink:label="loc_srt_AmericasMember_41F58F643A681677355D13E8651CB2A8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_1080C6AAF44AA03917EA13E8651CE897" xlink:to="loc_srt_AmericasMember_41F58F643A681677355D13E8651CB2A8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_EuropeMember" xlink:label="loc_srt_EuropeMember_17932C6392FA716774F813E8651C4425" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_1080C6AAF44AA03917EA13E8651CE897" xlink:to="loc_srt_EuropeMember_17932C6392FA716774F813E8651C4425" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_AsiaPacificMember" xlink:label="loc_srt_AsiaPacificMember_BBFEFA406AC9B5923A5113E8651D010D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_1080C6AAF44AA03917EA13E8651CE897" xlink:to="loc_srt_AsiaPacificMember_BBFEFA406AC9B5923A5113E8651D010D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsAxis" xlink:label="loc_srt_ConsolidationItemsAxis_C68A039ED18B8714118413E8651D0F78" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_00B374C71759D322AF1C13E8651BF9F8" xlink:to="loc_srt_ConsolidationItemsAxis_C68A039ED18B8714118413E8651D0F78" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="loc_srt_ConsolidationItemsDomain_42CFBA8CE8A8947DCE6F13E8651D678F_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_C68A039ED18B8714118413E8651D0F78" xlink:to="loc_srt_ConsolidationItemsDomain_42CFBA8CE8A8947DCE6F13E8651D678F_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="loc_srt_ConsolidationItemsDomain_42CFBA8CE8A8947DCE6F13E8651D678F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_C68A039ED18B8714118413E8651D0F78" xlink:to="loc_srt_ConsolidationItemsDomain_42CFBA8CE8A8947DCE6F13E8651D678F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_C19EB2FAD0E05804434C13E8651D875F" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_42CFBA8CE8A8947DCE6F13E8651D678F" xlink:to="loc_us-gaap_OperatingSegmentsMember_C19EB2FAD0E05804434C13E8651D875F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_0C52EDE9288741EA966C13E8651EA3CB" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_BD4EA3A486DDD885460013E8651ECB8C" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax_0C52EDE9288741EA966C13E8651EA3CB" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_5157847190EAEFB05DD713E8651E8E0B" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_BD4EA3A486DDD885460013E8651ECB8C" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_5157847190EAEFB05DD713E8651E8E0B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_03810B4F42EC034842B513E8651EA1CA" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_BD4EA3A486DDD885460013E8651ECB8C" xlink:to="loc_us-gaap_Assets_03810B4F42EC034842B513E8651EA1CA" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/SegmentInformationReconciliationOfSegmentAssetsDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_CE73DE987ACE7C0022DB1D18E76C153F" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_FC42AADB18F8008D0F4F1D18E76B4CDA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_CE73DE987ACE7C0022DB1D18E76C153F" xlink:to="loc_us-gaap_StatementTable_FC42AADB18F8008D0F4F1D18E76B4CDA" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsAxis" xlink:label="loc_srt_ConsolidationItemsAxis_6149F03DD905266932291D18E76B66BE" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_FC42AADB18F8008D0F4F1D18E76B4CDA" xlink:to="loc_srt_ConsolidationItemsAxis_6149F03DD905266932291D18E76B66BE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="loc_srt_ConsolidationItemsDomain_B09F8805029483A4AE581D18E76CF34A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_6149F03DD905266932291D18E76B66BE" xlink:to="loc_srt_ConsolidationItemsDomain_B09F8805029483A4AE581D18E76CF34A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationItemsDomain" xlink:label="loc_srt_ConsolidationItemsDomain_B09F8805029483A4AE581D18E76CF34A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_6149F03DD905266932291D18E76B66BE" xlink:to="loc_srt_ConsolidationItemsDomain_B09F8805029483A4AE581D18E76CF34A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingSegmentsMember" xlink:label="loc_us-gaap_OperatingSegmentsMember_C6B419F4B9FB49E684771D18E76C7ECD" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_B09F8805029483A4AE581D18E76CF34A" xlink:to="loc_us-gaap_OperatingSegmentsMember_C6B419F4B9FB49E684771D18E76C7ECD" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CorporateNonSegmentMember" xlink:label="loc_us-gaap_CorporateNonSegmentMember_08AE5713C09955763E011D18E76CCEAA" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_B09F8805029483A4AE581D18E76CF34A" xlink:to="loc_us-gaap_CorporateNonSegmentMember_08AE5713C09955763E011D18E76CCEAA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_ConsolidationEliminationsMember" xlink:label="loc_srt_ConsolidationEliminationsMember_119C25001411A88D5CC41D25A063A62D" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_B09F8805029483A4AE581D18E76CF34A" xlink:to="loc_srt_ConsolidationEliminationsMember_119C25001411A88D5CC41D25A063A62D" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaap_Assets_83D2DA33FF905C9985DE1D18E76C7538" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_CE73DE987ACE7C0022DB1D18E76C153F" xlink:to="loc_us-gaap_Assets_83D2DA33FF905C9985DE1D18E76C7538" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/SegmentInformationTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/ShareholdersEquity" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/ShareholdersEquityActivityInShareholdersEquityDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_845EA5DAAF6FE81BFCB036FD4D458381" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_08200DDEC8B2ACBBF08036FD4D43F28A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_845EA5DAAF6FE81BFCB036FD4D458381" xlink:to="loc_us-gaap_StatementTable_08200DDEC8B2ACBBF08036FD4D43F28A" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_3D438A34D20B5256E5F336FD4D43E5D4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_08200DDEC8B2ACBBF08036FD4D43F28A" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_3D438A34D20B5256E5F336FD4D43E5D4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3D438A34D20B5256E5F336FD4D43E5D4" xlink:to="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_3D438A34D20B5256E5F336FD4D43E5D4" xlink:to="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_DBA278080293C3D168FF36FD4D446F93" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311" xlink:to="loc_us-gaap_CommonStockMember_DBA278080293C3D168FF36FD4D446F93" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_153B587B978E49B70EED36FD4D44161A" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_153B587B978E49B70EED36FD4D44161A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_A21B52DD54295EDDBDCF36FD4D44E1B7" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311" xlink:to="loc_us-gaap_RetainedEarningsMember_A21B52DD54295EDDBDCF36FD4D44E1B7" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_C096604CF83B9AF5A1A836FD4D4417FE" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_C096604CF83B9AF5A1A836FD4D4417FE" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedTranslationAdjustmentMember" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_7F01C02D3B35CF0DB55836FD4D441EA8" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_7F01C02D3B35CF0DB55836FD4D441EA8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_F0FC3E0589A16D0FF28936FD4D4591C8" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_990A4AF4093657E3D95636FD4D435311" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_F0FC3E0589A16D0FF28936FD4D4591C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_845EA5DAAF6FE81BFCB036FD4D458381" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharesOutstanding" xlink:label="loc_us-gaap_SharesOutstanding_50302F7B2E0DA90EFE7236FD4D45B1AA" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_SharesOutstanding_50302F7B2E0DA90EFE7236FD4D45B1AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaap_StockholdersEquity_476F8CA6522A2180E50636FD4D459D45" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_StockholdersEquity_476F8CA6522A2180E50636FD4D459D45" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaap_NetIncomeLoss_38B26A8E9BF61DD1D38A36FD4D4544C9" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_NetIncomeLoss_38B26A8E9BF61DD1D38A36FD4D4544C9" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_2ADA80897FB1555AA88C36FD4D465431" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation_2ADA80897FB1555AA88C36FD4D465431" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_393C65DE6CA2A541E5EB36FD4D467D5C" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueShareBasedCompensation_393C65DE6CA2A541E5EB36FD4D467D5C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesOther" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesOther_30401CC741F1BCA99C1C36FD4D46471A" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesOther_30401CC741F1BCA99C1C36FD4D46471A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodValueOther" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueOther_66B7E3D7FEA0569D388236FD4D46B333" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueOther_66B7E3D7FEA0569D388236FD4D46B333" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRestrictedStockUnitOrRestrictedStockAwardDecrease" xlink:label="loc_tile_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRestrictedStockUnitOrRestrictedStockAwardDecrease_7D0073816B8CE326EDE136FD4D4603E1" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_tile_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRestrictedStockUnitOrRestrictedStockAwardDecrease_7D0073816B8CE326EDE136FD4D4603E1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_DividendsCommonStockCash" xlink:label="loc_us-gaap_DividendsCommonStockCash_B1CBAF6CC66730B524F936FD4D46B289" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_DividendsCommonStockCash_B1CBAF6CC66730B524F936FD4D46B289" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_ForfeituresAndCompensationExpenseRelatedToStockAwardsShares" xlink:label="loc_tile_ForfeituresAndCompensationExpenseRelatedToStockAwardsShares_9398A13C86DF013392A236FD4D47A23A" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_tile_ForfeituresAndCompensationExpenseRelatedToStockAwardsShares_9398A13C86DF013392A236FD4D47A23A" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_ForfeituresAndCompensationExpenseRelatedToStockAwardsValue" xlink:label="loc_tile_ForfeituresAndCompensationExpenseRelatedToStockAwardsValue_9C189558C0C5EFE5622536FD4D47E03E" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_tile_ForfeituresAndCompensationExpenseRelatedToStockAwardsValue_9C189558C0C5EFE5622536FD4D47E03E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodShares" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_FF62DC1F62CEEC0622DB36FD4D47ACCF" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodShares_FF62DC1F62CEEC0622DB36FD4D47ACCF" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_904E7A2B37D69FCE947C36FD4D47B01C" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_904E7A2B37D69FCE947C36FD4D47B01C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_B1156ABB314A93E381F736FD4D47DA33" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_B1156ABB314A93E381F736FD4D47DA33" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_7B43A8374129E1401E9436FD4D47080F" xlink:type="locator" />
    <link:definitionArc order="15" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_7B43A8374129E1401E9436FD4D47080F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent_0A8DA59E26C91D251ECC36FD4D48F9C5" xlink:type="locator" />
    <link:definitionArc order="16" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_14CDF38AD163C378514936FD4D45A0C4" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent_0A8DA59E26C91D251ECC36FD4D48F9C5" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/ShareholdersEquityNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_118F7770EB90498174AF38113A7AF438" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_StatementTable_118F7770EB90498174AF38113A7AF438" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_8A1A96F3A95649A4BF7E38113A7E5794" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_118F7770EB90498174AF38113A7AF438" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_8A1A96F3A95649A4BF7E38113A7E5794" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_40CEA85DA08CBA3CA22438113A7EE6C8_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_8A1A96F3A95649A4BF7E38113A7E5794" xlink:to="loc_us-gaap_EquityComponentDomain_40CEA85DA08CBA3CA22438113A7EE6C8_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_40CEA85DA08CBA3CA22438113A7EE6C8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_8A1A96F3A95649A4BF7E38113A7E5794" xlink:to="loc_us-gaap_EquityComponentDomain_40CEA85DA08CBA3CA22438113A7EE6C8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_6A4BBEA5FA1BA638387B38113A7EA8DC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_40CEA85DA08CBA3CA22438113A7EE6C8" xlink:to="loc_us-gaap_CommonStockMember_6A4BBEA5FA1BA638387B38113A7EA8DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_C35D19459A995A8CBD2C38113A7EAE25" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_118F7770EB90498174AF38113A7AF438" xlink:to="loc_us-gaap_AwardTypeAxis_C35D19459A995A8CBD2C38113A7EAE25" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_86320A256A6883D4BADD38113A7EB082_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_C35D19459A995A8CBD2C38113A7EAE25" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_86320A256A6883D4BADD38113A7EB082_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_86320A256A6883D4BADD38113A7EB082" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_C35D19459A995A8CBD2C38113A7EAE25" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_86320A256A6883D4BADD38113A7EB082" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeStockOptionMember" xlink:label="loc_us-gaap_EmployeeStockOptionMember_7B60C28FF1CFD9D7910738113A7E4B2C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_86320A256A6883D4BADD38113A7EB082" xlink:to="loc_us-gaap_EmployeeStockOptionMember_7B60C28FF1CFD9D7910738113A7E4B2C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_07C988E608A23B37A50F38113A7E26B6" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_86320A256A6883D4BADD38113A7EB082" xlink:to="loc_us-gaap_RestrictedStockMember_07C988E608A23B37A50F38113A7E26B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_22C2138D3439E41EA6D238113A7E23E5" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_86320A256A6883D4BADD38113A7EB082" xlink:to="loc_us-gaap_PerformanceSharesMember_22C2138D3439E41EA6D238113A7E23E5" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_RestrictedStockAndPerformanceSharesMember" xlink:label="loc_tile_RestrictedStockAndPerformanceSharesMember_B0B36E3679778BFF38E438113A7E6451" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_86320A256A6883D4BADD38113A7EB082" xlink:to="loc_tile_RestrictedStockAndPerformanceSharesMember_B0B36E3679778BFF38E438113A7E6451" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeAxis" xlink:label="loc_srt_RangeAxis_5C5C436520F43C72D1A238113A7E18B5" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_118F7770EB90498174AF38113A7AF438" xlink:to="loc_srt_RangeAxis_5C5C436520F43C72D1A238113A7E18B5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_EFC02C2B3711FB1725FB38113A7E6918_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_5C5C436520F43C72D1A238113A7E18B5" xlink:to="loc_srt_RangeMember_EFC02C2B3711FB1725FB38113A7E6918_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_RangeMember" xlink:label="loc_srt_RangeMember_EFC02C2B3711FB1725FB38113A7E6918" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_5C5C436520F43C72D1A238113A7E18B5" xlink:to="loc_srt_RangeMember_EFC02C2B3711FB1725FB38113A7E6918" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MinimumMember" xlink:label="loc_srt_MinimumMember_4C55E43BA68E6836986138113A7E6863" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_EFC02C2B3711FB1725FB38113A7E6918" xlink:to="loc_srt_MinimumMember_4C55E43BA68E6836986138113A7E6863" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/srt/2019/elts/srt-2019-01-31.xsd#srt_MaximumMember" xlink:label="loc_srt_MaximumMember_1368F1F4747AAC4A0F7838113A835213" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_EFC02C2B3711FB1725FB38113A7E6918" xlink:to="loc_srt_MaximumMember_1368F1F4747AAC4A0F7838113A835213" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchaseProgramAuthorizedAmount1" xlink:label="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_7581F039457BE2F8716E38113A8834B8" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_StockRepurchaseProgramAuthorizedAmount1_7581F039457BE2F8716E38113A8834B8" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockRepurchasedAndRetiredDuringPeriodValue" xlink:label="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_D24836BC4C17C87E82C838113A88930E" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_StockRepurchasedAndRetiredDuringPeriodValue_D24836BC4C17C87E82C838113A88930E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AllocatedShareBasedCompensationExpense" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_C54813C4BE37DE365AB138113A88F210" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_C54813C4BE37DE365AB138113A88F210" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_86E2AE83F1AF7F5B455538113A894644" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber_86E2AE83F1AF7F5B455538113A894644" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit" xlink:label="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_F0FE200F38A980A6B1F438113A898EBC" xlink:type="locator" />
    <link:definitionArc order="5" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeUpperRangeLimit_F0FE200F38A980A6B1F438113A898EBC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_7C7085D864DC41B3A62638113A8AD7A4" xlink:type="locator" />
    <link:definitionArc order="6" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross_7C7085D864DC41B3A62638113A8AD7A4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7B28CA67F9A705BD695F38113A8AD248" xlink:type="locator" />
    <link:definitionArc order="7" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised_7B28CA67F9A705BD695F38113A8AD248" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_E2A811FFC8E4384D2DA838113A8ADEC4" xlink:type="locator" />
    <link:definitionArc order="8" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresAndExpirationsInPeriod_E2A811FFC8E4384D2DA838113A8ADEC4" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_12215FE3EF99206E092F38113A8A76B6" xlink:type="locator" />
    <link:definitionArc order="9" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_12215FE3EF99206E092F38113A8A76B6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_DB16C17B09D6ABF58C0C38113A8A8F6F" xlink:type="locator" />
    <link:definitionArc order="10" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_DB16C17B09D6ABF58C0C38113A8A8F6F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_1E58431EFC41FF2EC1D238113A8B4219" xlink:type="locator" />
    <link:definitionArc order="11" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions_1E58431EFC41FF2EC1D238113A8B4219" xlink:type="arc" />
    <link:loc xlink:href="tile-20190929.xsd#tile_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesIssuedDuringExerciseOfInstrumentUpperLimitPercentage" xlink:label="loc_tile_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesIssuedDuringExerciseOfInstrumentUpperLimitPercentage_F4000B50DAD62BBDF47B38113A8B814A" xlink:type="locator" />
    <link:definitionArc order="12" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_tile_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsSharesIssuedDuringExerciseOfInstrumentUpperLimitPercentage_F4000B50DAD62BBDF47B38113A8B814A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DBE52E907501FD38081238113A8BF2ED" xlink:type="locator" />
    <link:definitionArc order="13" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_DBE52E907501FD38081238113A8BF2ED" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_34FA02F52D24C2C78ADF38113A8B83FE" xlink:type="locator" />
    <link:definitionArc order="14" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_D8ECF8CEB02DF233B05238113A834952" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense_34FA02F52D24C2C78ADF38113A8B83FE" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/ShareholdersEquityPerformanceSharesOutstandingDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5102DE1EB9D56F564DFFCAE4E5E1CCE1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_F2BBF3634AB41A5ABBDCCAE4E5D1B2A9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5102DE1EB9D56F564DFFCAE4E5E1CCE1" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_F2BBF3634AB41A5ABBDCCAE4E5D1B2A9" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_51996E560C1D66F6399BCAB5643CCA8C" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_F2BBF3634AB41A5ABBDCCAE4E5D1B2A9" xlink:to="loc_us-gaap_AwardTypeAxis_51996E560C1D66F6399BCAB5643CCA8C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_362A4DF3ACBCC057F343CAB5643CCD2A_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_51996E560C1D66F6399BCAB5643CCA8C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_362A4DF3ACBCC057F343CAB5643CCD2A_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_362A4DF3ACBCC057F343CAB5643CCD2A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_51996E560C1D66F6399BCAB5643CCA8C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_362A4DF3ACBCC057F343CAB5643CCD2A" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_PerformanceSharesMember" xlink:label="loc_us-gaap_PerformanceSharesMember_F60746DAD910B3C0D830CAB56440E909" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_362A4DF3ACBCC057F343CAB5643CCD2A" xlink:to="loc_us-gaap_PerformanceSharesMember_F60746DAD910B3C0D830CAB56440E909" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_8A0B910212D2D19559FBCAE577211CE6" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5102DE1EB9D56F564DFFCAE4E5E1CCE1" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_8A0B910212D2D19559FBCAE577211CE6" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_40DBE461C668E118CA03CAB56442E374" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_8A0B910212D2D19559FBCAE577211CE6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_40DBE461C668E118CA03CAB56442E374" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_5CCF8070FC28F9AA37B0CAB564431CE2" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_8A0B910212D2D19559FBCAE577211CE6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_5CCF8070FC28F9AA37B0CAB564431CE2" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_79A0F67809C73DE768F4CAB564440A51" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_8A0B910212D2D19559FBCAE577211CE6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_79A0F67809C73DE768F4CAB564440A51" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_FBDD92716C211CF17E34CAB5644439A5" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedNumberOfSharesRollForward_8A0B910212D2D19559FBCAE577211CE6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_FBDD92716C211CF17E34CAB5644439A5" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_4C7BF42B1165B4C8F298CAE60D86675C" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_5102DE1EB9D56F564DFFCAE4E5E1CCE1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_4C7BF42B1165B4C8F298CAE60D86675C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_EFAC288C04A110F449FDCAB564435989" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_4C7BF42B1165B4C8F298CAE60D86675C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_EFAC288C04A110F449FDCAB564435989" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_4EB2F59DAD009EE9F670CAB56443D206" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_4C7BF42B1165B4C8F298CAE60D86675C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_4EB2F59DAD009EE9F670CAB56443D206" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_1AB4DFE4A8063D153F1BCAB56444BADC" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_4C7BF42B1165B4C8F298CAE60D86675C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_1AB4DFE4A8063D153F1BCAB56444BADC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_44A209A5C76E37ADCCAACAB56444CE8D" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePriceRollforward_4C7BF42B1165B4C8F298CAE60D86675C" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_44A209A5C76E37ADCCAACAB56444CE8D" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/ShareholdersEquityRestrictedStockOutstandingDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_92B9F332E607EB027FC3CADE8C335EF1" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FDC6F2A5EBC33EF17267CADE8C1871F9" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_92B9F332E607EB027FC3CADE8C335EF1" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FDC6F2A5EBC33EF17267CADE8C1871F9" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AwardTypeAxis" xlink:label="loc_us-gaap_AwardTypeAxis_83DE03E2384BB7190AC3CAB559742F1E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_FDC6F2A5EBC33EF17267CADE8C1871F9" xlink:to="loc_us-gaap_AwardTypeAxis_83DE03E2384BB7190AC3CAB559742F1E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2A785D7B4CC08EDE5113CAB559747988_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_83DE03E2384BB7190AC3CAB559742F1E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2A785D7B4CC08EDE5113CAB559747988_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2A785D7B4CC08EDE5113CAB559747988" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_83DE03E2384BB7190AC3CAB559742F1E" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2A785D7B4CC08EDE5113CAB559747988" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_RestrictedStockMember" xlink:label="loc_us-gaap_RestrictedStockMember_1FB8A80AD75792FA2CB7CAB5597462DC" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_2A785D7B4CC08EDE5113CAB559747988" xlink:to="loc_us-gaap_RestrictedStockMember_1FB8A80AD75792FA2CB7CAB5597462DC" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_E1BF48F9DEC148AB6D0BCAD8E0017C90" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_92B9F332E607EB027FC3CADE8C335EF1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_E1BF48F9DEC148AB6D0BCAD8E0017C90" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_9CD39888DD28B955C2F4CAB559760DD0" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_E1BF48F9DEC148AB6D0BCAD8E0017C90" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_9CD39888DD28B955C2F4CAB559760DD0" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_DB334CDC9C340B87D52CCAB55976E281" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_E1BF48F9DEC148AB6D0BCAD8E0017C90" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_DB334CDC9C340B87D52CCAB55976E281" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_4D623F607FEFC3C8509DCAB55976491B" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_E1BF48F9DEC148AB6D0BCAD8E0017C90" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_4D623F607FEFC3C8509DCAB55976491B" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_2E61D51EB324B2EF1754CAB55976E33C" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_E1BF48F9DEC148AB6D0BCAD8E0017C90" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_2E61D51EB324B2EF1754CAB55976E33C" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_0DF43559375E19E61145CADB450E836F" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_92B9F332E607EB027FC3CADE8C335EF1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_0DF43559375E19E61145CADB450E836F" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_15D9F00957095C2BD67CCAB559764525" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_0DF43559375E19E61145CADB450E836F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_15D9F00957095C2BD67CCAB559764525" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_CC3A86716A59951A8569CAB559763158" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_0DF43559375E19E61145CADB450E836F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_CC3A86716A59951A8569CAB559763158" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_8178748ABCEE35A659B9CAB55976B8F1" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_0DF43559375E19E61145CADB450E836F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_8178748ABCEE35A659B9CAB55976B8F1" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_133F4317C94E1683701ACAB559763955" xlink:type="locator" />
    <link:definitionArc order="4" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_0DF43559375E19E61145CADB450E836F" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_133F4317C94E1683701ACAB559763955" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/ShareholdersEquityTables" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/SignificantAccountingPoliciesPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/SummaryOfSignificantAccountingPolicies" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/SummaryOfSignificantAccountingPoliciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_D7DED498719FF1F57F111DD2C7A0AE6A" xlink:type="locator" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_C6E73FACB5ED1B0045701DD2C79F639A" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_D7DED498719FF1F57F111DD2C7A0AE6A" xlink:to="loc_us-gaap_StatementTable_C6E73FACB5ED1B0045701DD2C79F639A" xlink:type="arc" xbrldt:closed="true" xbrldt:contextElement="segment" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AdjustmentsForNewAccountingPronouncementsAxis" xlink:label="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_06288963E7B9F686FCE61DD2C79F626E" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_C6E73FACB5ED1B0045701DD2C79F639A" xlink:to="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_06288963E7B9F686FCE61DD2C79F626E" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfAdoptionMember" xlink:label="loc_us-gaap_TypeOfAdoptionMember_60CD4F32D6C11EB5E0E71DD2C79F3513_default" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_06288963E7B9F686FCE61DD2C79F626E" xlink:to="loc_us-gaap_TypeOfAdoptionMember_60CD4F32D6C11EB5E0E71DD2C79F3513_default" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_TypeOfAdoptionMember" xlink:label="loc_us-gaap_TypeOfAdoptionMember_60CD4F32D6C11EB5E0E71DD2C79F3513" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AdjustmentsForNewAccountingPronouncementsAxis_06288963E7B9F686FCE61DD2C79F626E" xlink:to="loc_us-gaap_TypeOfAdoptionMember_60CD4F32D6C11EB5E0E71DD2C79F3513" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_AccountingStandardsUpdate201602Member" xlink:label="loc_us-gaap_AccountingStandardsUpdate201602Member_76F2974B5DC63180FD8D1DD2C7A0AA10" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfAdoptionMember_60CD4F32D6C11EB5E0E71DD2C79F3513" xlink:to="loc_us-gaap_AccountingStandardsUpdate201602Member_76F2974B5DC63180FD8D1DD2C7A0AA10" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseRightOfUseAsset" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_65926DF0E188FD07307B1DD2C7A00569" xlink:type="locator" />
    <link:definitionArc order="1" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_D7DED498719FF1F57F111DD2C7A0AE6A" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_65926DF0E188FD07307B1DD2C7A00569" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_OperatingLeaseLiability" xlink:label="loc_us-gaap_OperatingLeaseLiability_EDDF99BCC0AAB8A9F6CE1DD2C7A0A6AA" xlink:type="locator" />
    <link:definitionArc order="2" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_D7DED498719FF1F57F111DD2C7A0AE6A" xlink:to="loc_us-gaap_OperatingLeaseLiability_EDDF99BCC0AAB8A9F6CE1DD2C7A0A6AA" xlink:type="arc" />
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2019/elts/us-gaap-2019-01-31.xsd#us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1" xlink:label="loc_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1_0B8F9F5F3BDE3E5DC1E71E0B9A65D485" xlink:type="locator" />
    <link:definitionArc order="3" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_D7DED498719FF1F57F111DD2C7A0AE6A" xlink:to="loc_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1_0B8F9F5F3BDE3E5DC1E71E0B9A65D485" xlink:type="arc" />
  </link:definitionLink>
  <link:definitionLink xlink:role="http://www.interface.com/role/SupplementalCashFlowInformationDetails" xlink:type="extended" />
  <link:definitionLink xlink:role="http://www.interface.com/role/SupplementalCashFlowInformationSupplementalCashFlowInformation" xlink:type="extended" />
</link:linkbase>
