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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2024 Workiva-->
<!--r:6a1eb5d0-3b2d-46a4-805b-db6c213754b8,g:2d50769c-7660-4b59-a956-f5096e5a80bb-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://www.smartsand.com/role/CONDENSEDCONSOLIDATEDINCOMESTATEMENTSUNAUDITED" xlink:type="simple" xlink:href="snd-20240630.xsd#CONDENSEDCONSOLIDATEDINCOMESTATEMENTSUNAUDITED"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/CONDENSEDCONSOLIDATEDINCOMESTATEMENTSUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_64e6e207-f589-4d9b-95d0-007bec347e05" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_StatementTable_64e6e207-f589-4d9b-95d0-007bec347e05" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_fa328b73-26c4-41e4-a20c-0a6ef9ff1826" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_64e6e207-f589-4d9b-95d0-007bec347e05" xlink:to="loc_srt_ProductOrServiceAxis_fa328b73-26c4-41e4-a20c-0a6ef9ff1826" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_fa328b73-26c4-41e4-a20c-0a6ef9ff1826_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_fa328b73-26c4-41e4-a20c-0a6ef9ff1826" xlink:to="loc_srt_ProductsAndServicesDomain_fa328b73-26c4-41e4-a20c-0a6ef9ff1826_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_0f11b035-8b20-4095-8e47-825c30591691" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_fa328b73-26c4-41e4-a20c-0a6ef9ff1826" xlink:to="loc_srt_ProductsAndServicesDomain_0f11b035-8b20-4095-8e47-825c30591691" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_SandMember_b72b8f58-8589-4bc2-9015-357448ed2b58" xlink:href="snd-20240630.xsd#snd_SandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0f11b035-8b20-4095-8e47-825c30591691" xlink:to="loc_snd_SandMember_b72b8f58-8589-4bc2-9015-357448ed2b58" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_SmartSystemsMember_e6e3c9a1-ef9c-4eea-988f-71101e0363c5" xlink:href="snd-20240630.xsd#snd_SmartSystemsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0f11b035-8b20-4095-8e47-825c30591691" xlink:to="loc_snd_SmartSystemsMember_e6e3c9a1-ef9c-4eea-988f-71101e0363c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_c53eccea-7ceb-4643-8b96-9c653b25ac99" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Revenues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_Revenues_c53eccea-7ceb-4643-8b96-9c653b25ac99" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_1b0d0a9e-38b0-4037-9e09-0dc24ceb3b9b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_1b0d0a9e-38b0-4037-9e09-0dc24ceb3b9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GrossProfit_1157c4a7-061f-49fe-a1f5-89d08c09a84d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GrossProfit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_GrossProfit_1157c4a7-061f-49fe-a1f5-89d08c09a84d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpensesAbstract_7dcac642-179f-4c19-ab2a-18fe6cd87957" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpensesAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_OperatingExpensesAbstract_7dcac642-179f-4c19-ab2a-18fe6cd87957" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpense_85b091c8-e252-47ca-b8a7-42b0cf1d4001" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingGeneralAndAdministrativeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_7dcac642-179f-4c19-ab2a-18fe6cd87957" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpense_85b091c8-e252-47ca-b8a7-42b0cf1d4001" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationAndAmortization_24e61daa-5fe7-432f-9c75-a82a637c7afb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_7dcac642-179f-4c19-ab2a-18fe6cd87957" xlink:to="loc_us-gaap_DepreciationAndAmortization_24e61daa-5fe7-432f-9c75-a82a637c7afb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_baace67d-e1d5-4d3d-8226-5481acbcbf2b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_7dcac642-179f-4c19-ab2a-18fe6cd87957" xlink:to="loc_us-gaap_GainLossOnSaleOfPropertyPlantEquipment_baace67d-e1d5-4d3d-8226-5481acbcbf2b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenses_01b1d2f2-6580-4b1f-a55a-989282808cc4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OperatingExpensesAbstract_7dcac642-179f-4c19-ab2a-18fe6cd87957" xlink:to="loc_us-gaap_OperatingExpenses_01b1d2f2-6580-4b1f-a55a-989282808cc4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_f698280f-c338-4920-9f56-499abf258afa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_OperatingIncomeLoss_f698280f-c338-4920-9f56-499abf258afa" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_279aa70f-547c-415b-a328-7e307bf895a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_279aa70f-547c-415b-a328-7e307bf895a8" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncome_aadd3b2d-b712-4e8f-bb50-4e54156ffa60" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherIncome"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_OtherIncome_aadd3b2d-b712-4e8f-bb50-4e54156ffa60" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_17afe775-4e1e-4f84-a522-34bd04f593fd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_17afe775-4e1e-4f84-a522-34bd04f593fd" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a1bc7f0b-11d4-4bc4-b559-001fd4c8c8b9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_a1bc7f0b-11d4-4bc4-b559-001fd4c8c8b9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_2f3a9529-4f6c-46c1-b80b-5b6f82697f18" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_2f3a9529-4f6c-46c1-b80b-5b6f82697f18" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_137d4a04-eaec-49aa-84a3-0bf570147cab" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_NetIncomeLoss_137d4a04-eaec-49aa-84a3-0bf570147cab" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareAbstract_6849a3fa-fedb-4602-acdd-538e78a9c6cb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_EarningsPerShareAbstract_6849a3fa-fedb-4602-acdd-538e78a9c6cb" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_1c8f54c5-e671-444a-9a8a-514dc7591e78" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6849a3fa-fedb-4602-acdd-538e78a9c6cb" xlink:to="loc_us-gaap_EarningsPerShareBasic_1c8f54c5-e671-444a-9a8a-514dc7591e78" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_94ed5624-0e68-47c6-a194-f7f4c2f5b6bd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EarningsPerShareAbstract_6849a3fa-fedb-4602-acdd-538e78a9c6cb" xlink:to="loc_us-gaap_EarningsPerShareDiluted_94ed5624-0e68-47c6-a194-f7f4c2f5b6bd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_70d008fd-f588-4aba-9636-706e9df90f4c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_70d008fd-f588-4aba-9636-706e9df90f4c" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_dd680e24-18d6-4e6c-a380-4f96195d957f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_70d008fd-f588-4aba-9636-706e9df90f4c" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_dd680e24-18d6-4e6c-a380-4f96195d957f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_242671c3-0ac5-4a27-bf41-ce3abde012d7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_70d008fd-f588-4aba-9636-706e9df90f4c" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_242671c3-0ac5-4a27-bf41-ce3abde012d7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_38129d11-9d9d-4978-82fd-8b638839858e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_846db034-a79c-4753-bae3-28ebf91ca2a0" xlink:to="loc_us-gaap_GainsLossesOnExtinguishmentOfDebt_38129d11-9d9d-4978-82fd-8b638839858e" xlink:type="arc" order="13"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITYUNAUDITED" xlink:type="simple" xlink:href="snd-20240630.xsd#CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITYUNAUDITED"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFCHANGESINSTOCKHOLDERSEQUITYUNAUDITED" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_e3b1259a-5989-46da-85a7-d70edc4115b2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_850416fe-3bd5-40cd-8234-a311ad3f3564" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_e3b1259a-5989-46da-85a7-d70edc4115b2" xlink:to="loc_us-gaap_StatementTable_850416fe-3bd5-40cd-8234-a311ad3f3564" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_a8f4d3fa-71d0-402e-95d4-5814cf9a9e4e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_850416fe-3bd5-40cd-8234-a311ad3f3564" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_a8f4d3fa-71d0-402e-95d4-5814cf9a9e4e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_a8f4d3fa-71d0-402e-95d4-5814cf9a9e4e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a8f4d3fa-71d0-402e-95d4-5814cf9a9e4e" xlink:to="loc_us-gaap_EquityComponentDomain_a8f4d3fa-71d0-402e-95d4-5814cf9a9e4e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_d5551692-b094-4af5-b39e-63c490a9ba9b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_a8f4d3fa-71d0-402e-95d4-5814cf9a9e4e" xlink:to="loc_us-gaap_EquityComponentDomain_d5551692-b094-4af5-b39e-63c490a9ba9b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_2d3fa1d7-43c7-401b-ba20-66ff234ca315" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_d5551692-b094-4af5-b39e-63c490a9ba9b" xlink:to="loc_us-gaap_CommonStockMember_2d3fa1d7-43c7-401b-ba20-66ff234ca315" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_90363864-01a7-4e58-b465-8cd369976b8d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_d5551692-b094-4af5-b39e-63c490a9ba9b" xlink:to="loc_us-gaap_TreasuryStockCommonMember_90363864-01a7-4e58-b465-8cd369976b8d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_dfe5f261-8176-4791-836f-685d665c0ed1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_d5551692-b094-4af5-b39e-63c490a9ba9b" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_dfe5f261-8176-4791-836f-685d665c0ed1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_50f7acf8-451e-4d13-8f68-b77ed093a98e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_d5551692-b094-4af5-b39e-63c490a9ba9b" xlink:to="loc_us-gaap_RetainedEarningsMember_50f7acf8-451e-4d13-8f68-b77ed093a98e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_38d7cfcf-4fee-424a-8fe1-dfe361f2b068" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_d5551692-b094-4af5-b39e-63c490a9ba9b" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_38d7cfcf-4fee-424a-8fe1-dfe361f2b068" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_33381128-39c4-45e9-85ce-f10b19f41ff7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_850416fe-3bd5-40cd-8234-a311ad3f3564" xlink:to="loc_us-gaap_AwardTypeAxis_33381128-39c4-45e9-85ce-f10b19f41ff7" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_33381128-39c4-45e9-85ce-f10b19f41ff7_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_33381128-39c4-45e9-85ce-f10b19f41ff7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_33381128-39c4-45e9-85ce-f10b19f41ff7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e53f8b0d-2b8a-4963-b3a8-04a6234945f8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_33381128-39c4-45e9-85ce-f10b19f41ff7" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e53f8b0d-2b8a-4963-b3a8-04a6234945f8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_0f35f8e7-280a-4d29-9862-3d744379d68a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_e53f8b0d-2b8a-4963-b3a8-04a6234945f8" xlink:to="loc_us-gaap_RestrictedStockMember_0f35f8e7-280a-4d29-9862-3d744379d68a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_e3b1259a-5989-46da-85a7-d70edc4115b2" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_6907491a-19e2-4cd2-91c4-2c7db4e79a65" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_6907491a-19e2-4cd2-91c4-2c7db4e79a65" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_1cfcecfe-b10a-482d-8e9c-9515795ccf91" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_StockholdersEquity_1cfcecfe-b10a-482d-8e9c-9515795ccf91" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_27d43f3c-04b0-436f-a8d8-67df3b938c07" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockCommonShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_TreasuryStockCommonShares_27d43f3c-04b0-436f-a8d8-67df3b938c07" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_93641a91-29a3-4e19-b023-93386cc3e2c2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPortionAttributableToParent_93641a91-29a3-4e19-b023-93386cc3e2c2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_a711ffb0-7403-4663-88e7-c3f2143ab9d7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_a711ffb0-7403-4663-88e7-c3f2143ab9d7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_b83f8cb8-80af-4415-9194-618fe58f64b9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition_b83f8cb8-80af-4415-9194-618fe58f64b9" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition_f937ee1d-ced0-4bd4-803b-251fe136ab2a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationEmployeeStockPurchaseProgramRequisiteServicePeriodRecognition_f937ee1d-ced0-4bd4-803b-251fe136ab2a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_4ea0fc35-dc5b-4a0f-9790-c748e13881cc" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans_4ea0fc35-dc5b-4a0f-9790-c748e13881cc" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_9df3c7e9-8a88-4e3f-be1d-022a5d2044b4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueEmployeeStockPurchasePlan_9df3c7e9-8a88-4e3f-be1d-022a5d2044b4" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_1d79aca5-1635-4486-b9be-9cc5af7204cd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_1d79aca5-1635-4486-b9be-9cc5af7204cd" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_822038c1-dc20-4cf0-9ea5-dba33ad2938c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_822038c1-dc20-4cf0-9ea5-dba33ad2938c" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_27aa7df1-2939-4b7f-ada5-0cb848a9ef3f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_2cc95260-3fed-4758-8a3d-b84d754868e5" xlink:to="loc_us-gaap_NetIncomeLoss_27aa7df1-2939-4b7f-ada5-0cb848a9ef3f" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_c144161e-e204-4e26-92d4-b0814f95945d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_853c6636-4714-425e-a1d3-aaed60caa294" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonShares_8eca3802-f875-4721-8a35-2ec193144391" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockCommonShares"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/OrganizationandNatureofBusinessDetail" xlink:type="simple" xlink:href="snd-20240630.xsd#OrganizationandNatureofBusinessDetail"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/OrganizationandNatureofBusinessDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_eeb59db6-e468-4df8-8a1b-2d1b42e109ff" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_ddb29398-52df-4d0c-976c-0fdf4aee9788" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_eeb59db6-e468-4df8-8a1b-2d1b42e109ff" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_ddb29398-52df-4d0c-976c-0fdf4aee9788" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_25a1571d-9716-47bc-9d3b-a2fefa686dc9" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_ddb29398-52df-4d0c-976c-0fdf4aee9788" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_25a1571d-9716-47bc-9d3b-a2fefa686dc9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_25a1571d-9716-47bc-9d3b-a2fefa686dc9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_25a1571d-9716-47bc-9d3b-a2fefa686dc9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_25a1571d-9716-47bc-9d3b-a2fefa686dc9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_080cd815-4b1c-4784-acd9-1840b63b437a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_25a1571d-9716-47bc-9d3b-a2fefa686dc9" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_080cd815-4b1c-4784-acd9-1840b63b437a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UticaMember_b2bf8834-b4f8-47f5-be75-ff4a530211c6" xlink:href="snd-20240630.xsd#snd_UticaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_080cd815-4b1c-4784-acd9-1840b63b437a" xlink:to="loc_snd_UticaMember_b2bf8834-b4f8-47f5-be75-ff4a530211c6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionAxis_b44094f5-0d45-4c92-8a2f-9797cd8bad0b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_ddb29398-52df-4d0c-976c-0fdf4aee9788" xlink:to="loc_us-gaap_AssetAcquisitionAxis_b44094f5-0d45-4c92-8a2f-9797cd8bad0b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_b44094f5-0d45-4c92-8a2f-9797cd8bad0b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_b44094f5-0d45-4c92-8a2f-9797cd8bad0b" xlink:to="loc_us-gaap_AssetAcquisitionDomain_b44094f5-0d45-4c92-8a2f-9797cd8bad0b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetAcquisitionDomain_6c317c6e-1969-46d2-8d58-166ad697fa80" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_b44094f5-0d45-4c92-8a2f-9797cd8bad0b" xlink:to="loc_us-gaap_AssetAcquisitionDomain_6c317c6e-1969-46d2-8d58-166ad697fa80" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_BlairMember_911f0c71-ce8d-44bf-9937-948e2bbea22a" xlink:href="snd-20240630.xsd#snd_BlairMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_6c317c6e-1969-46d2-8d58-166ad697fa80" xlink:to="loc_snd_BlairMember_911f0c71-ce8d-44bf-9937-948e2bbea22a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_CurrentAnnualProcessingCapacity_b81f2fc2-8810-4e1d-8e14-1075ca811ed1" xlink:href="snd-20240630.xsd#snd_CurrentAnnualProcessingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_eeb59db6-e468-4df8-8a1b-2d1b42e109ff" xlink:to="loc_snd_CurrentAnnualProcessingCapacity_b81f2fc2-8810-4e1d-8e14-1075ca811ed1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_NumberOfMinesAndRelatedFacilitiesAcquired_2775c78a-a7b4-4b49-84b6-b31d189616fc" xlink:href="snd-20240630.xsd#snd_NumberOfMinesAndRelatedFacilitiesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_eeb59db6-e468-4df8-8a1b-2d1b42e109ff" xlink:to="loc_snd_NumberOfMinesAndRelatedFacilitiesAcquired_2775c78a-a7b4-4b49-84b6-b31d189616fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_AssetAcquisitionAnnualProcessingCapacityOnceOperational_c063e349-c7c8-45e8-ba04-c4ef87d0f474" xlink:href="snd-20240630.xsd#snd_AssetAcquisitionAnnualProcessingCapacityOnceOperational"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_eeb59db6-e468-4df8-8a1b-2d1b42e109ff" xlink:to="loc_snd_AssetAcquisitionAnnualProcessingCapacityOnceOperational_c063e349-c7c8-45e8-ba04-c4ef87d0f474" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/SummaryofSignificantAccountingPoliciesAdditionalInformationDetail" xlink:type="simple" xlink:href="snd-20240630.xsd#SummaryofSignificantAccountingPoliciesAdditionalInformationDetail"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/SummaryofSignificantAccountingPoliciesAdditionalInformationDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_snd_AccountingPoliciesLineItems_e46f8e44-f1c8-4833-be41-6297a35f01d2" xlink:href="snd-20240630.xsd#snd_AccountingPoliciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_AccountingPoliciesTable_7559b01b-12b1-4e42-802e-efb941faf17f" xlink:href="snd-20240630.xsd#snd_AccountingPoliciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_snd_AccountingPoliciesLineItems_e46f8e44-f1c8-4833-be41-6297a35f01d2" xlink:to="loc_snd_AccountingPoliciesTable_7559b01b-12b1-4e42-802e-efb941faf17f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_OtherRevenueDetailAxis_c167f5aa-370f-43a9-91a7-16876a76aae7" xlink:href="snd-20240630.xsd#snd_OtherRevenueDetailAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_snd_AccountingPoliciesTable_7559b01b-12b1-4e42-802e-efb941faf17f" xlink:to="loc_snd_OtherRevenueDetailAxis_c167f5aa-370f-43a9-91a7-16876a76aae7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_OtherRevenueDetailDomain_c167f5aa-370f-43a9-91a7-16876a76aae7_default" xlink:href="snd-20240630.xsd#snd_OtherRevenueDetailDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_snd_OtherRevenueDetailAxis_c167f5aa-370f-43a9-91a7-16876a76aae7" xlink:to="loc_snd_OtherRevenueDetailDomain_c167f5aa-370f-43a9-91a7-16876a76aae7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_OtherRevenueDetailDomain_61382ded-3d88-44ba-8860-e336f6e598c2" xlink:href="snd-20240630.xsd#snd_OtherRevenueDetailDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_snd_OtherRevenueDetailAxis_c167f5aa-370f-43a9-91a7-16876a76aae7" xlink:to="loc_snd_OtherRevenueDetailDomain_61382ded-3d88-44ba-8860-e336f6e598c2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_EmployeeRetentionCreditMember_a708e483-1b12-4679-a7cd-5217f2682de2" xlink:href="snd-20240630.xsd#snd_EmployeeRetentionCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_snd_OtherRevenueDetailDomain_61382ded-3d88-44ba-8860-e336f6e598c2" xlink:to="loc_snd_EmployeeRetentionCreditMember_a708e483-1b12-4679-a7cd-5217f2682de2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_a3ab702c-1e3c-45cd-b070-b2c90e60dadf" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_snd_AccountingPoliciesLineItems_e46f8e44-f1c8-4833-be41-6297a35f01d2" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_a3ab702c-1e3c-45cd-b070-b2c90e60dadf" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/InventoryScheduleofInventoriesDetail" xlink:type="simple" xlink:href="snd-20240630.xsd#InventoryScheduleofInventoriesDetail"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/InventoryScheduleofInventoriesDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryLineItems_e232f8fa-c210-4ab8-9d40-6fdc71aa22a8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryCurrentTable_3dc4763b-6163-4f07-b4c0-497add382428" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryCurrentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_InventoryLineItems_e232f8fa-c210-4ab8-9d40-6fdc71aa22a8" xlink:to="loc_us-gaap_InventoryCurrentTable_3dc4763b-6163-4f07-b4c0-497add382428" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesInventoryAxis_4889ecb9-a3fd-49d4-88e7-ad0aac357582" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PublicUtilitiesInventoryAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_InventoryCurrentTable_3dc4763b-6163-4f07-b4c0-497add382428" xlink:to="loc_us-gaap_PublicUtilitiesInventoryAxis_4889ecb9-a3fd-49d4-88e7-ad0aac357582" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_4889ecb9-a3fd-49d4-88e7-ad0aac357582_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PublicUtilitiesInventoryTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PublicUtilitiesInventoryAxis_4889ecb9-a3fd-49d4-88e7-ad0aac357582" xlink:to="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_4889ecb9-a3fd-49d4-88e7-ad0aac357582_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_7c516656-5907-420f-9a1f-7e06ed63e34e" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PublicUtilitiesInventoryTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PublicUtilitiesInventoryAxis_4889ecb9-a3fd-49d4-88e7-ad0aac357582" xlink:to="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_7c516656-5907-420f-9a1f-7e06ed63e34e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_SandMember_e012f16e-0c6a-45ac-9f0a-1492bb86cdda" xlink:href="snd-20240630.xsd#snd_SandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PublicUtilitiesInventoryTypeDomain_7c516656-5907-420f-9a1f-7e06ed63e34e" xlink:to="loc_snd_SandMember_e012f16e-0c6a-45ac-9f0a-1492bb86cdda" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_InventoryRawMaterialNet_15e5c190-a22f-48ff-b3f3-7c86a507871b" xlink:href="snd-20240630.xsd#snd_InventoryRawMaterialNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InventoryLineItems_e232f8fa-c210-4ab8-9d40-6fdc71aa22a8" xlink:to="loc_snd_InventoryRawMaterialNet_15e5c190-a22f-48ff-b3f3-7c86a507871b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_InventoryWorkInProcessNet_1178b9d1-7d80-405d-a3de-a853f779cb22" xlink:href="snd-20240630.xsd#snd_InventoryWorkInProcessNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InventoryLineItems_e232f8fa-c210-4ab8-9d40-6fdc71aa22a8" xlink:to="loc_snd_InventoryWorkInProcessNet_1178b9d1-7d80-405d-a3de-a853f779cb22" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_InventoryFinishedGoodsNet_9ce1397d-aeaa-4557-a6b2-e076187e9b94" xlink:href="snd-20240630.xsd#snd_InventoryFinishedGoodsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InventoryLineItems_e232f8fa-c210-4ab8-9d40-6fdc71aa22a8" xlink:to="loc_snd_InventoryFinishedGoodsNet_9ce1397d-aeaa-4557-a6b2-e076187e9b94" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_InventorySparePartsNet_be0e808f-e6d9-4c0e-ba48-eeba27708d24" xlink:href="snd-20240630.xsd#snd_InventorySparePartsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InventoryLineItems_e232f8fa-c210-4ab8-9d40-6fdc71aa22a8" xlink:to="loc_snd_InventorySparePartsNet_be0e808f-e6d9-4c0e-ba48-eeba27708d24" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet_29c3781d-0aa0-4fb1-94c9-d6765088ed82" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InventoryNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InventoryLineItems_e232f8fa-c210-4ab8-9d40-6fdc71aa22a8" xlink:to="loc_us-gaap_InventoryNet_29c3781d-0aa0-4fb1-94c9-d6765088ed82" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/PropertyPlantandEquipmentNetScheduleofNetPropertyPlantandEquipmentDetail" xlink:type="simple" xlink:href="snd-20240630.xsd#PropertyPlantandEquipmentNetScheduleofNetPropertyPlantandEquipmentDetail"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/PropertyPlantandEquipmentNetScheduleofNetPropertyPlantandEquipmentDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ae773144-498a-4a90-b729-b9495b29f7ea" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_fd389dc6-eada-4913-a903-ffc977ecdf64" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ae773144-498a-4a90-b729-b9495b29f7ea" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_fd389dc6-eada-4913-a903-ffc977ecdf64" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_a31a91de-2d15-4514-b8eb-38bb9d4c6a9a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_fd389dc6-eada-4913-a903-ffc977ecdf64" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_a31a91de-2d15-4514-b8eb-38bb9d4c6a9a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_a31a91de-2d15-4514-b8eb-38bb9d4c6a9a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_a31a91de-2d15-4514-b8eb-38bb9d4c6a9a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_a31a91de-2d15-4514-b8eb-38bb9d4c6a9a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_a31a91de-2d15-4514-b8eb-38bb9d4c6a9a" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_e355686e-1aa3-4e87-a1eb-9d383cd1d0fd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MachineryAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_e355686e-1aa3-4e87-a1eb-9d383cd1d0fd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_WellsiteStorageSolutionsMember_daf34bbd-8f75-4bda-9298-9b408e723419" xlink:href="snd-20240630.xsd#snd_WellsiteStorageSolutionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_snd_WellsiteStorageSolutionsMember_daf34bbd-8f75-4bda-9298-9b408e723419" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VehiclesMember_40cec1cc-4516-4680-a603-d21e346c81b8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VehiclesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_VehiclesMember_40cec1cc-4516-4680-a603-d21e346c81b8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_721976cd-64aa-48ba-b5fa-4843cc08d539" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_721976cd-64aa-48ba-b5fa-4843cc08d539" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_171e5469-6582-452f-a9e1-ea8103e5ba8f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_BuildingMember_171e5469-6582-452f-a9e1-ea8103e5ba8f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandMember_bc5fa5b6-21e5-432a-b481-588ed9aae269" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_LandMember_bc5fa5b6-21e5-432a-b481-588ed9aae269" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RailroadTransportationEquipmentMember_423c7a26-714d-4bc6-a88f-a582c532b402" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RailroadTransportationEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_RailroadTransportationEquipmentMember_423c7a26-714d-4bc6-a88f-a582c532b402" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAndLandImprovementsMember_f8d0387f-e5ea-4e06-835f-1923cd089781" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LandAndLandImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_LandAndLandImprovementsMember_f8d0387f-e5ea-4e06-835f-1923cd089781" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RemediationPropertyForSaleAbandonmentOrDisposalMember_6a212942-11e0-4529-80dd-1df50be69e2f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RemediationPropertyForSaleAbandonmentOrDisposalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_RemediationPropertyForSaleAbandonmentOrDisposalMember_6a212942-11e0-4529-80dd-1df50be69e2f" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MiningPropertiesAndMineralRightsMember_abf8dbf7-2436-4668-8222-667f184750d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MiningPropertiesAndMineralRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_MiningPropertiesAndMineralRightsMember_abf8dbf7-2436-4668-8222-667f184750d2" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MineDevelopmentMember_aa121865-d1a1-4b33-9e0c-da4ff7e05254" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MineDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_MineDevelopmentMember_aa121865-d1a1-4b33-9e0c-da4ff7e05254" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_df0101e2-3811-4bf3-8324-0f673a4a63e7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_ed93f919-1dad-4100-ba8a-91ccb98cddc6" xlink:to="loc_us-gaap_ConstructionInProgressMember_df0101e2-3811-4bf3-8324-0f673a4a63e7" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_3ff57ab9-6c85-4b1b-bc68-9b0c0ae99026" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ae773144-498a-4a90-b729-b9495b29f7ea" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_3ff57ab9-6c85-4b1b-bc68-9b0c0ae99026" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_45758142-0eaf-4ce6-a049-1f3fe34258ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ae773144-498a-4a90-b729-b9495b29f7ea" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_45758142-0eaf-4ce6-a049-1f3fe34258ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_093153e6-f6a2-452f-96f8-ad960d266069" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_ae773144-498a-4a90-b729-b9495b29f7ea" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_093153e6-f6a2-452f-96f8-ad960d266069" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/DebtDetails" xlink:type="simple" xlink:href="snd-20240630.xsd#DebtDetails"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/DebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_d7862176-62dd-4995-aa65-7950c6b58128" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_6fdc2a4d-654f-439e-b974-cce00d2d7e12" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_d7862176-62dd-4995-aa65-7950c6b58128" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_6fdc2a4d-654f-439e-b974-cce00d2d7e12" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_9a8a4286-79fc-44e9-bd95-85191f566804" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_6fdc2a4d-654f-439e-b974-cce00d2d7e12" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_9a8a4286-79fc-44e9-bd95-85191f566804" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_9a8a4286-79fc-44e9-bd95-85191f566804_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9a8a4286-79fc-44e9-bd95-85191f566804" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_9a8a4286-79fc-44e9-bd95-85191f566804_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_e5ec93fb-fe65-4aa8-98a3-32c156511430" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_9a8a4286-79fc-44e9-bd95-85191f566804" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_e5ec93fb-fe65-4aa8-98a3-32c156511430" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_20e55b49-29e2-47d5-8683-e407148dbbdb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_e5ec93fb-fe65-4aa8-98a3-32c156511430" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_20e55b49-29e2-47d5-8683-e407148dbbdb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_4f47901d-1e92-41cc-8533-16a3c2bfe21d" xlink:href="snd-20240630.xsd#snd_UsGaap_OakdaleEquipmentFinancingMemberMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_e5ec93fb-fe65-4aa8-98a3-32c156511430" xlink:to="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_4f47901d-1e92-41cc-8533-16a3c2bfe21d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableOtherPayablesMember_5e92ce60-ce94-4796-bdfb-81d5469ca8fd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayableOtherPayablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_e5ec93fb-fe65-4aa8-98a3-32c156511430" xlink:to="loc_us-gaap_NotesPayableOtherPayablesMember_5e92ce60-ce94-4796-bdfb-81d5469ca8fd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalLeaseObligationsMember_0b7dea41-4a50-437d-97b0-56f45597bbf5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalLeaseObligationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_e5ec93fb-fe65-4aa8-98a3-32c156511430" xlink:to="loc_us-gaap_CapitalLeaseObligationsMember_0b7dea41-4a50-437d-97b0-56f45597bbf5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_VFIEquipmentFinancingMember_0ded8157-28fd-4be6-be6b-22196305a737" xlink:href="snd-20240630.xsd#snd_UsGaap_VFIEquipmentFinancingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_e5ec93fb-fe65-4aa8-98a3-32c156511430" xlink:to="loc_snd_UsGaap_VFIEquipmentFinancingMember_0ded8157-28fd-4be6-be6b-22196305a737" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_102613a1-2524-435b-89d5-194d0de9c83c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_d7862176-62dd-4995-aa65-7950c6b58128" xlink:to="loc_us-gaap_LongTermDebtCurrent_102613a1-2524-435b-89d5-194d0de9c83c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_36aefebe-c40d-402d-837c-290447707fa5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_d7862176-62dd-4995-aa65-7950c6b58128" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_36aefebe-c40d-402d-837c-290447707fa5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_e93b7e81-d3cd-4f5a-bc82-95eacbfc9479" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_DebtInstrumentTable_e93b7e81-d3cd-4f5a-bc82-95eacbfc9479" xlink:type="arc" order="2" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_46c8b296-39df-4178-92e8-633a2a2a3111" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_e93b7e81-d3cd-4f5a-bc82-95eacbfc9479" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_46c8b296-39df-4178-92e8-633a2a2a3111" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_46c8b296-39df-4178-92e8-633a2a2a3111_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_d1849d80-5f74-45c9-be1f-5fcae3cec6b5" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_c159cd61-2d93-4c66-ada0-be8ca7255b97" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_920a5af5-d2be-4844-9562-53568a85b623" xlink:href="snd-20240630.xsd#snd_UsGaap_OakdaleEquipmentFinancingMemberMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableOtherPayablesMember_c410a6b1-cbb6-494b-ae77-ec110398790b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayableOtherPayablesMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalLeaseObligationsMember_1e175341-de9b-4232-9b1d-3e114c4ccd20" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalLeaseObligationsMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_VFIEquipmentFinancingMember_a85c96ed-8678-4e48-86d7-86f56e564704" xlink:href="snd-20240630.xsd#snd_UsGaap_VFIEquipmentFinancingMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_1574fc55-a4a9-49ec-afb0-d611b397dcb8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_e93b7e81-d3cd-4f5a-bc82-95eacbfc9479" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_1574fc55-a4a9-49ec-afb0-d611b397dcb8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_1574fc55-a4a9-49ec-afb0-d611b397dcb8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_1574fc55-a4a9-49ec-afb0-d611b397dcb8" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_1574fc55-a4a9-49ec-afb0-d611b397dcb8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_38587a8a-ab3b-41a7-99c3-bb4171114928" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_1574fc55-a4a9-49ec-afb0-d611b397dcb8" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_38587a8a-ab3b-41a7-99c3-bb4171114928" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_NexseerCapitalMember_45c6054d-8849-41ec-98cf-a8c01030720e" xlink:href="snd-20240630.xsd#snd_NexseerCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_38587a8a-ab3b-41a7-99c3-bb4171114928" xlink:to="loc_snd_NexseerCapitalMember_45c6054d-8849-41ec-98cf-a8c01030720e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_7b7d7e9c-8727-47f4-a3be-8df1098e9e4f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_e93b7e81-d3cd-4f5a-bc82-95eacbfc9479" xlink:to="loc_us-gaap_DebtInstrumentAxis_7b7d7e9c-8727-47f4-a3be-8df1098e9e4f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_7b7d7e9c-8727-47f4-a3be-8df1098e9e4f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_7b7d7e9c-8727-47f4-a3be-8df1098e9e4f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_7b7d7e9c-8727-47f4-a3be-8df1098e9e4f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_f8a0b1cb-2147-45dd-a265-da8527675775" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_7b7d7e9c-8727-47f4-a3be-8df1098e9e4f" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_f8a0b1cb-2147-45dd-a265-da8527675775" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_5333ef60-72f7-404f-b4c7-f08a37a21c81" xlink:href="snd-20240630.xsd#snd_UsGaap_OakdaleEquipmentFinancingMemberMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_f8a0b1cb-2147-45dd-a265-da8527675775" xlink:to="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_5333ef60-72f7-404f-b4c7-f08a37a21c81" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_e5e9e632-ad4a-427a-92ed-d9411d6a40fe" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_e5e9e632-ad4a-427a-92ed-d9411d6a40fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_f69ebe55-2da6-493d-a4d2-3895a2e473ef" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths_f69ebe55-2da6-493d-a4d2-3895a2e473ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_bf7ead0c-0f24-4e9b-b6b0-53c2df731d5a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo_bf7ead0c-0f24-4e9b-b6b0-53c2df731d5a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_777821fb-af98-47d6-a688-09dd713b09a1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree_777821fb-af98-47d6-a688-09dd713b09a1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_8c1dbdfc-7003-4af5-9e48-f00c34c49680" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour_8c1dbdfc-7003-4af5-9e48-f00c34c49680" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_LongTermDebtMaturityAfterYearFour_42b1ad15-69b3-4925-8eb8-1b7a88608bf0" xlink:href="snd-20240630.xsd#snd_LongTermDebtMaturityAfterYearFour"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_snd_LongTermDebtMaturityAfterYearFour_42b1ad15-69b3-4925-8eb8-1b7a88608bf0" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_05e43956-6471-4714-8df2-478f0eb8f885" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_LongTermDebt_05e43956-6471-4714-8df2-478f0eb8f885" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentPeriodicPaymentInterest_e2077287-37ac-44f6-8aac-55e542333d02" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentPeriodicPaymentInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_DebtInstrumentPeriodicPaymentInterest_e2077287-37ac-44f6-8aac-55e542333d02" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums_9d6375a5-f381-4815-91df-49bd986edfb8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums_9d6375a5-f381-4815-91df-49bd986edfb8" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_ade44924-a903-405a-8202-ba7662e6f8fa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_FinanceLeaseLiability_ade44924-a903-405a-8202-ba7662e6f8fa" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_5cfe55d0-8493-444d-a13f-7881e722fcfb" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_LongTermDebtCurrent_5cfe55d0-8493-444d-a13f-7881e722fcfb" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_740f8a07-eaf5-43c3-8eeb-ee40b639253c" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_39e7d8d7-6936-456d-b039-f2e788ca93b6" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_740f8a07-eaf5-43c3-8eeb-ee40b639253c" xlink:type="arc" order="11"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/DebtAdditionalInformationDetail" xlink:type="simple" xlink:href="snd-20240630.xsd#DebtAdditionalInformationDetail"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/DebtAdditionalInformationDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_a56fd00f-1b6e-4891-80ed-a1271f905373" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_a56fd00f-1b6e-4891-80ed-a1271f905373" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_01d172ce-7dcb-4ee3-9d84-6f0745cc54e8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a56fd00f-1b6e-4891-80ed-a1271f905373" xlink:to="loc_us-gaap_CreditFacilityAxis_01d172ce-7dcb-4ee3-9d84-6f0745cc54e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_01d172ce-7dcb-4ee3-9d84-6f0745cc54e8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_01d172ce-7dcb-4ee3-9d84-6f0745cc54e8" xlink:to="loc_us-gaap_CreditFacilityDomain_01d172ce-7dcb-4ee3-9d84-6f0745cc54e8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_742ddc93-a036-4269-8de5-1d8f0a033d61" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_01d172ce-7dcb-4ee3-9d84-6f0745cc54e8" xlink:to="loc_us-gaap_CreditFacilityDomain_742ddc93-a036-4269-8de5-1d8f0a033d61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_ABLRevolvingCreditFacilityMemberMember_4f07b483-36db-4a82-a30e-6106877f3b0d" xlink:href="snd-20240630.xsd#snd_ABLRevolvingCreditFacilityMemberMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_742ddc93-a036-4269-8de5-1d8f0a033d61" xlink:to="loc_snd_ABLRevolvingCreditFacilityMemberMember_4f07b483-36db-4a82-a30e-6106877f3b0d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_2cacb2d9-4d35-45d6-9cbf-9a9977d947d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a56fd00f-1b6e-4891-80ed-a1271f905373" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_2cacb2d9-4d35-45d6-9cbf-9a9977d947d2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_2cacb2d9-4d35-45d6-9cbf-9a9977d947d2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_2cacb2d9-4d35-45d6-9cbf-9a9977d947d2" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_2cacb2d9-4d35-45d6-9cbf-9a9977d947d2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_dbc037ef-7221-4334-8608-4c6ae0c3d170" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_2cacb2d9-4d35-45d6-9cbf-9a9977d947d2" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_dbc037ef-7221-4334-8608-4c6ae0c3d170" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_JeffriesFinanceLLCMember_10bfb8d3-6393-413c-b427-eb3fd47dd194" xlink:href="snd-20240630.xsd#snd_JeffriesFinanceLLCMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_dbc037ef-7221-4334-8608-4c6ae0c3d170" xlink:to="loc_snd_JeffriesFinanceLLCMember_10bfb8d3-6393-413c-b427-eb3fd47dd194" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_NexseerCapitalMember_e8f5d9a3-e44e-43d1-9b83-2d407ea8d199" xlink:href="snd-20240630.xsd#snd_NexseerCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_dbc037ef-7221-4334-8608-4c6ae0c3d170" xlink:to="loc_snd_NexseerCapitalMember_e8f5d9a3-e44e-43d1-9b83-2d407ea8d199" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_0362f26c-7e36-4e2b-8483-13ea23616f26" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a56fd00f-1b6e-4891-80ed-a1271f905373" xlink:to="loc_us-gaap_DebtInstrumentAxis_0362f26c-7e36-4e2b-8483-13ea23616f26" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_0362f26c-7e36-4e2b-8483-13ea23616f26_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_0362f26c-7e36-4e2b-8483-13ea23616f26" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_0362f26c-7e36-4e2b-8483-13ea23616f26_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_35ea8a3e-5042-45fa-bdc7-0f6c32472045" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_0362f26c-7e36-4e2b-8483-13ea23616f26" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_35ea8a3e-5042-45fa-bdc7-0f6c32472045" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_4559a3f3-0321-4d6a-9b28-1001ca15a2e1" xlink:href="snd-20240630.xsd#snd_UsGaap_OakdaleEquipmentFinancingMemberMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_35ea8a3e-5042-45fa-bdc7-0f6c32472045" xlink:to="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_4559a3f3-0321-4d6a-9b28-1001ca15a2e1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_VFIEquipmentFinancingMember_d25a4c8a-0959-4b6f-a024-164075030443" xlink:href="snd-20240630.xsd#snd_UsGaap_VFIEquipmentFinancingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_35ea8a3e-5042-45fa-bdc7-0f6c32472045" xlink:to="loc_snd_UsGaap_VFIEquipmentFinancingMember_d25a4c8a-0959-4b6f-a024-164075030443" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_f4476cd7-64a0-444b-973d-89ccb7df8398" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a56fd00f-1b6e-4891-80ed-a1271f905373" xlink:to="loc_srt_RangeAxis_f4476cd7-64a0-444b-973d-89ccb7df8398" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_f4476cd7-64a0-444b-973d-89ccb7df8398_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_f4476cd7-64a0-444b-973d-89ccb7df8398" xlink:to="loc_srt_RangeMember_f4476cd7-64a0-444b-973d-89ccb7df8398_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_4c3e144e-4781-4e7d-8d23-08d91623dbec" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_f4476cd7-64a0-444b-973d-89ccb7df8398" xlink:to="loc_srt_RangeMember_4c3e144e-4781-4e7d-8d23-08d91623dbec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_a87deb37-3fe3-4dda-bdee-e5e84d2f1bef" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_4c3e144e-4781-4e7d-8d23-08d91623dbec" xlink:to="loc_srt_MinimumMember_a87deb37-3fe3-4dda-bdee-e5e84d2f1bef" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_1ca7d102-2f17-432e-bfec-e1c008e34ed3" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_4c3e144e-4781-4e7d-8d23-08d91623dbec" xlink:to="loc_srt_MaximumMember_1ca7d102-2f17-432e-bfec-e1c008e34ed3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_e36f23c3-432a-4008-9127-45d8a5c9d571" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LineOfCreditFacilityTable_a56fd00f-1b6e-4891-80ed-a1271f905373" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_e36f23c3-432a-4008-9127-45d8a5c9d571" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_e36f23c3-432a-4008-9127-45d8a5c9d571_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_e36f23c3-432a-4008-9127-45d8a5c9d571" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_e36f23c3-432a-4008-9127-45d8a5c9d571_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_eda71887-6f71-4199-813a-fefcffe8858b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_e36f23c3-432a-4008-9127-45d8a5c9d571" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_eda71887-6f71-4199-813a-fefcffe8858b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_12c279ad-1979-47cf-a202-ff93952a4c14" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_eda71887-6f71-4199-813a-fefcffe8858b" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_12c279ad-1979-47cf-a202-ff93952a4c14" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_c4afef7e-8aea-448c-adef-b61776843036" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_c4afef7e-8aea-448c-adef-b61776843036" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityExpirationPeriod_9e00efb5-958a-423d-9cdc-18ce6db0067b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityExpirationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_LineOfCreditFacilityExpirationPeriod_9e00efb5-958a-423d-9cdc-18ce6db0067b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_34b0e438-3671-40e3-9f3e-8392440c2134" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity_34b0e438-3671-40e3-9f3e-8392440c2134" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_28a5ca88-6e51-4c42-b78e-1084fcb7aee2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalRemainderOfFiscalYear_28a5ca88-6e51-4c42-b78e-1084fcb7aee2" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_4d87155d-88df-4eb7-b45d-f0648efc53e4" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity_4d87155d-88df-4eb7-b45d-f0648efc53e4" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtWeightedAverageInterestRate_9b18d786-3ffe-4848-b676-248036e21b44" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_DebtWeightedAverageInterestRate_9b18d786-3ffe-4848-b676-248036e21b44" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSecuredNotesPayable_9d9b2e75-a0f4-4f8e-bf3f-c6ec952d8104" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSecuredNotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_ProceedsFromSecuredNotesPayable_9d9b2e75-a0f4-4f8e-bf3f-c6ec952d8104" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_1d35a99d-3a85-46a2-b594-d7abf632076a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_db630219-af71-42f6-8f1d-915b5ad91149" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_1d35a99d-3a85-46a2-b594-d7abf632076a" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/DebtDetails_1" xlink:type="simple" xlink:href="snd-20240630.xsd#DebtDetails_1"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/DebtDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_e6ac7179-4d77-4db2-a15f-6bfbd6482927" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_11be2379-4fa5-46e6-8fa8-8ed2cb1422d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e6ac7179-4d77-4db2-a15f-6bfbd6482927" xlink:to="loc_us-gaap_DebtInstrumentTable_11be2379-4fa5-46e6-8fa8-8ed2cb1422d2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_249c701b-5cfb-41e3-8749-78fcb63eb887" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_11be2379-4fa5-46e6-8fa8-8ed2cb1422d2" xlink:to="loc_srt_RangeAxis_249c701b-5cfb-41e3-8749-78fcb63eb887" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_249c701b-5cfb-41e3-8749-78fcb63eb887_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_249c701b-5cfb-41e3-8749-78fcb63eb887" xlink:to="loc_srt_RangeMember_249c701b-5cfb-41e3-8749-78fcb63eb887_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_c12a85ca-dac4-49ea-a307-fec8923f44d1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_249c701b-5cfb-41e3-8749-78fcb63eb887" xlink:to="loc_srt_RangeMember_c12a85ca-dac4-49ea-a307-fec8923f44d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_65ecd015-f1ad-4670-b1fa-a0289dbfeeb1" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_c12a85ca-dac4-49ea-a307-fec8923f44d1" xlink:to="loc_srt_MinimumMember_65ecd015-f1ad-4670-b1fa-a0289dbfeeb1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_492f9d0b-a496-4ce6-9b68-6f31f108770f" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_c12a85ca-dac4-49ea-a307-fec8923f44d1" xlink:to="loc_srt_MaximumMember_492f9d0b-a496-4ce6-9b68-6f31f108770f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis_7466047a-7ae2-4c56-8e10-6f271b1f3aca" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_CounterpartyNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_11be2379-4fa5-46e6-8fa8-8ed2cb1422d2" xlink:to="loc_srt_CounterpartyNameAxis_7466047a-7ae2-4c56-8e10-6f271b1f3aca" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_7466047a-7ae2-4c56-8e10-6f271b1f3aca_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_CounterpartyNameAxis_7466047a-7ae2-4c56-8e10-6f271b1f3aca" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_7466047a-7ae2-4c56-8e10-6f271b1f3aca_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RepurchaseAgreementCounterpartyNameDomain_8719a1c5-d1d1-41aa-a347-a2c84ff1bb00" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RepurchaseAgreementCounterpartyNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_CounterpartyNameAxis_7466047a-7ae2-4c56-8e10-6f271b1f3aca" xlink:to="loc_srt_RepurchaseAgreementCounterpartyNameDomain_8719a1c5-d1d1-41aa-a347-a2c84ff1bb00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_ClearlakeCapitalPartnersIIMasterLPMember_6b0e59d9-f0ac-496c-835b-a8d8f9fcb8c9" xlink:href="snd-20240630.xsd#snd_ClearlakeCapitalPartnersIIMasterLPMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_8719a1c5-d1d1-41aa-a347-a2c84ff1bb00" xlink:to="loc_snd_ClearlakeCapitalPartnersIIMasterLPMember_6b0e59d9-f0ac-496c-835b-a8d8f9fcb8c9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_ClearlakeCapitalGroupMember_9b5f6c6f-3cb6-428c-9e94-7a1f48f611b8" xlink:href="snd-20240630.xsd#snd_ClearlakeCapitalGroupMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RepurchaseAgreementCounterpartyNameDomain_8719a1c5-d1d1-41aa-a347-a2c84ff1bb00" xlink:to="loc_snd_ClearlakeCapitalGroupMember_9b5f6c6f-3cb6-428c-9e94-7a1f48f611b8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_08551b2a-1de6-42f1-99a8-34009e1fb807" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_11be2379-4fa5-46e6-8fa8-8ed2cb1422d2" xlink:to="loc_us-gaap_DebtInstrumentAxis_08551b2a-1de6-42f1-99a8-34009e1fb807" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_08551b2a-1de6-42f1-99a8-34009e1fb807_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_08551b2a-1de6-42f1-99a8-34009e1fb807" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_08551b2a-1de6-42f1-99a8-34009e1fb807_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_bbf8c312-dffd-40a6-9ba9-066c28a04ef0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_08551b2a-1de6-42f1-99a8-34009e1fb807" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_bbf8c312-dffd-40a6-9ba9-066c28a04ef0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_CommonStockRepurchasePromissoryNoteMember_b70817a8-f813-479c-b09e-1927c0bc7666" xlink:href="snd-20240630.xsd#snd_CommonStockRepurchasePromissoryNoteMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bbf8c312-dffd-40a6-9ba9-066c28a04ef0" xlink:to="loc_snd_CommonStockRepurchasePromissoryNoteMember_b70817a8-f813-479c-b09e-1927c0bc7666" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableOtherPayablesMember_78819fdb-0eff-4a8e-8a21-1c93aee161f0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesPayableOtherPayablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bbf8c312-dffd-40a6-9ba9-066c28a04ef0" xlink:to="loc_us-gaap_NotesPayableOtherPayablesMember_78819fdb-0eff-4a8e-8a21-1c93aee161f0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductFinancingArrangementMember_70fb62eb-2a47-4f2e-bac5-e40e0db3f9ae" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProductFinancingArrangementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bbf8c312-dffd-40a6-9ba9-066c28a04ef0" xlink:to="loc_us-gaap_ProductFinancingArrangementMember_70fb62eb-2a47-4f2e-bac5-e40e0db3f9ae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_20b81f83-79ff-4a63-857e-b4d73c463986" xlink:href="snd-20240630.xsd#snd_UsGaap_OakdaleEquipmentFinancingMemberMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bbf8c312-dffd-40a6-9ba9-066c28a04ef0" xlink:to="loc_snd_UsGaap_OakdaleEquipmentFinancingMemberMember_20b81f83-79ff-4a63-857e-b4d73c463986" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_UsGaap_VFIEquipmentFinancingMember_bc4e7408-52be-4ad1-afb9-0a38e24c569b" xlink:href="snd-20240630.xsd#snd_UsGaap_VFIEquipmentFinancingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_bbf8c312-dffd-40a6-9ba9-066c28a04ef0" xlink:to="loc_snd_UsGaap_VFIEquipmentFinancingMember_bc4e7408-52be-4ad1-afb9-0a38e24c569b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityAxis_0569a1ab-6a8b-45fb-bf20-443ea517cb3d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_11be2379-4fa5-46e6-8fa8-8ed2cb1422d2" xlink:to="loc_us-gaap_LineOfCreditFacilityAxis_0569a1ab-6a8b-45fb-bf20-443ea517cb3d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_0569a1ab-6a8b-45fb-bf20-443ea517cb3d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_0569a1ab-6a8b-45fb-bf20-443ea517cb3d" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_0569a1ab-6a8b-45fb-bf20-443ea517cb3d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLenderDomain_03d5dece-273a-4c8c-9752-d122744bf1d2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityLenderDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LineOfCreditFacilityAxis_0569a1ab-6a8b-45fb-bf20-443ea517cb3d" xlink:to="loc_us-gaap_LineOfCreditFacilityLenderDomain_03d5dece-273a-4c8c-9752-d122744bf1d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_NexseerCapitalMember_1c15bcb3-ba90-44c6-8c35-537e2120ac86" xlink:href="snd-20240630.xsd#snd_NexseerCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLenderDomain_03d5dece-273a-4c8c-9752-d122744bf1d2" xlink:to="loc_snd_NexseerCapitalMember_1c15bcb3-ba90-44c6-8c35-537e2120ac86" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_2421fd9e-5e62-4d11-8d97-4444b245145a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e6ac7179-4d77-4db2-a15f-6bfbd6482927" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_2421fd9e-5e62-4d11-8d97-4444b245145a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_1e76fd21-5553-4619-830e-d3194e434c20" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e6ac7179-4d77-4db2-a15f-6bfbd6482927" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_1e76fd21-5553-4619-830e-d3194e434c20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_457bbaca-7af9-4c69-9c1d-17c8d2488706" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e6ac7179-4d77-4db2-a15f-6bfbd6482927" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_457bbaca-7af9-4c69-9c1d-17c8d2488706" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_a0e9ee6d-f1d1-4f6a-b983-f79f39943b2b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e6ac7179-4d77-4db2-a15f-6bfbd6482927" xlink:to="loc_us-gaap_PaymentsForRepurchaseOfCommonStock_a0e9ee6d-f1d1-4f6a-b983-f79f39943b2b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_RepurchaseOfCommonStockPercentageOfOutstandingSharesBeforeTransaction_cfae8ff0-4418-441c-a0c9-07e842fc8cf9" xlink:href="snd-20240630.xsd#snd_RepurchaseOfCommonStockPercentageOfOutstandingSharesBeforeTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e6ac7179-4d77-4db2-a15f-6bfbd6482927" xlink:to="loc_snd_RepurchaseOfCommonStockPercentageOfOutstandingSharesBeforeTransaction_cfae8ff0-4418-441c-a0c9-07e842fc8cf9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSecuredNotesPayable_6d6f6f69-a666-4d10-a145-635a7a0d3079" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSecuredNotesPayable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_e6ac7179-4d77-4db2-a15f-6bfbd6482927" xlink:to="loc_us-gaap_ProceedsFromSecuredNotesPayable_6d6f6f69-a666-4d10-a145-635a7a0d3079" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/RevenueDisaggregationofRevenueDetails" xlink:type="simple" xlink:href="snd-20240630.xsd#RevenueDisaggregationofRevenueDetails"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/RevenueDisaggregationofRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_c2da05b9-6854-46d2-9d36-101eb2e63c9f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_5e04356e-bf32-47a6-a8b3-c747e4242741" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_c2da05b9-6854-46d2-9d36-101eb2e63c9f" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_5e04356e-bf32-47a6-a8b3-c747e4242741" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_cb1adae3-c9a1-435c-a713-61a1d7346a94" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_5e04356e-bf32-47a6-a8b3-c747e4242741" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_cb1adae3-c9a1-435c-a713-61a1d7346a94" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_cb1adae3-c9a1-435c-a713-61a1d7346a94_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_cb1adae3-c9a1-435c-a713-61a1d7346a94" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_cb1adae3-c9a1-435c-a713-61a1d7346a94_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_f81df09a-53d1-4810-abb8-a1f8845bb410" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_cb1adae3-c9a1-435c-a713-61a1d7346a94" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_f81df09a-53d1-4810-abb8-a1f8845bb410" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductConcentrationRiskMember_bd7c5bef-082c-4c5d-a108-acd99a439afa" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProductConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_f81df09a-53d1-4810-abb8-a1f8845bb410" xlink:to="loc_us-gaap_ProductConcentrationRiskMember_bd7c5bef-082c-4c5d-a108-acd99a439afa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_16ecb890-cc39-48a1-a844-63f4de1e3e6f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_5e04356e-bf32-47a6-a8b3-c747e4242741" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_16ecb890-cc39-48a1-a844-63f4de1e3e6f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_16ecb890-cc39-48a1-a844-63f4de1e3e6f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_16ecb890-cc39-48a1-a844-63f4de1e3e6f" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_16ecb890-cc39-48a1-a844-63f4de1e3e6f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_2dc491f0-55b5-4f06-b2fd-6963ae605f74" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_16ecb890-cc39-48a1-a844-63f4de1e3e6f" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_2dc491f0-55b5-4f06-b2fd-6963ae605f74" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerMember_d0ca2ccd-3667-4425-8890-1a7ee56b8f65" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_2dc491f0-55b5-4f06-b2fd-6963ae605f74" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerMember_d0ca2ccd-3667-4425-8890-1a7ee56b8f65" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_7ccdd5e0-f9bf-4a5c-95bb-9e82f8588861" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_5e04356e-bf32-47a6-a8b3-c747e4242741" xlink:to="loc_srt_ProductOrServiceAxis_7ccdd5e0-f9bf-4a5c-95bb-9e82f8588861" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_7ccdd5e0-f9bf-4a5c-95bb-9e82f8588861_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_7ccdd5e0-f9bf-4a5c-95bb-9e82f8588861" xlink:to="loc_srt_ProductsAndServicesDomain_7ccdd5e0-f9bf-4a5c-95bb-9e82f8588861_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_b2fdc8f4-b6cb-4187-a1b1-3b60afd7f5b0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_7ccdd5e0-f9bf-4a5c-95bb-9e82f8588861" xlink:to="loc_srt_ProductsAndServicesDomain_b2fdc8f4-b6cb-4187-a1b1-3b60afd7f5b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_SandMember_087816c7-6593-4df0-a737-610effba9f00" xlink:href="snd-20240630.xsd#snd_SandMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b2fdc8f4-b6cb-4187-a1b1-3b60afd7f5b0" xlink:to="loc_snd_SandMember_087816c7-6593-4df0-a737-610effba9f00" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_LogisticsMember_8ca10fe1-b762-43dc-96e3-eb1b17d80065" xlink:href="snd-20240630.xsd#snd_LogisticsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_b2fdc8f4-b6cb-4187-a1b1-3b60afd7f5b0" xlink:to="loc_snd_LogisticsMember_8ca10fe1-b762-43dc-96e3-eb1b17d80065" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_33185768-55ab-4b40-9465-1fdd519d40d8" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_c2da05b9-6854-46d2-9d36-101eb2e63c9f" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_33185768-55ab-4b40-9465-1fdd519d40d8" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/RevenueDeferredRevenueDetails" xlink:type="simple" xlink:href="snd-20240630.xsd#RevenueDeferredRevenueDetails"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/RevenueDeferredRevenueDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_85eb5b58-f0be-46e2-8355-d194f81f0683" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_40fed723-9f20-4346-917d-144f9f74cff7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_85eb5b58-f0be-46e2-8355-d194f81f0683" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_40fed723-9f20-4346-917d-144f9f74cff7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_b810696f-715e-46f1-bef4-8bff15ed33ec" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_40fed723-9f20-4346-917d-144f9f74cff7" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_b810696f-715e-46f1-bef4-8bff15ed33ec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_f582e597-31aa-467a-a6f7-39e52bcc272d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_85eb5b58-f0be-46e2-8355-d194f81f0683" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_f582e597-31aa-467a-a6f7-39e52bcc272d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/RevenueDeferredRevenueDetails_1" xlink:type="simple" xlink:href="snd-20240630.xsd#RevenueDeferredRevenueDetails_1"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/RevenueDeferredRevenueDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_85eb5b58-f0be-46e2-8355-d194f81f0683" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_40fed723-9f20-4346-917d-144f9f74cff7" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_85eb5b58-f0be-46e2-8355-d194f81f0683" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_40fed723-9f20-4346-917d-144f9f74cff7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_f582e597-31aa-467a-a6f7-39e52bcc272d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_85eb5b58-f0be-46e2-8355-d194f81f0683" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_f582e597-31aa-467a-a6f7-39e52bcc272d" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/RevenuePerformanceObligationDetails" xlink:type="simple" xlink:href="snd-20240630.xsd#RevenuePerformanceObligationDetails"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/RevenuePerformanceObligationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_35881f0c-3c24-4b4b-87c8-979361313f14" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ee61b4ce-7c98-427d-9df5-2510419e24ec" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_35881f0c-3c24-4b4b-87c8-979361313f14" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ee61b4ce-7c98-427d-9df5-2510419e24ec" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_dc65f2b9-328b-427d-b934-42e22c387651" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ee61b4ce-7c98-427d-9df5-2510419e24ec" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionStartDateAxis_dc65f2b9-328b-427d-b934-42e22c387651" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_99364d82-657e-4055-b276-64bbe4e6da19" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_35881f0c-3c24-4b4b-87c8-979361313f14" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_99364d82-657e-4055-b276-64bbe4e6da19" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_eccc76ac-1a66-428a-8c4f-7491ed0ff285" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_35881f0c-3c24-4b4b-87c8-979361313f14" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_eccc76ac-1a66-428a-8c4f-7491ed0ff285" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/RevenuePerformanceObligationDetails_1" xlink:type="simple" xlink:href="snd-20240630.xsd#RevenuePerformanceObligationDetails_1"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/RevenuePerformanceObligationDetails_1" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_35881f0c-3c24-4b4b-87c8-979361313f14" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ee61b4ce-7c98-427d-9df5-2510419e24ec" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_35881f0c-3c24-4b4b-87c8-979361313f14" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionTable_ee61b4ce-7c98-427d-9df5-2510419e24ec" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligation_99364d82-657e-4055-b276-64bbe4e6da19" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_35881f0c-3c24-4b4b-87c8-979361313f14" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligation_99364d82-657e-4055-b276-64bbe4e6da19" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_eccc76ac-1a66-428a-8c4f-7491ed0ff285" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionLineItems_35881f0c-3c24-4b4b-87c8-979361313f14" xlink:to="loc_us-gaap_RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1_eccc76ac-1a66-428a-8c4f-7491ed0ff285" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/ConcentrationsAdditionalInformationDetail" xlink:type="simple" xlink:href="snd-20240630.xsd#ConcentrationsAdditionalInformationDetail"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/ConcentrationsAdditionalInformationDetail" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_3d285d00-d59a-48a0-8fea-20b5157501f6" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_ead2bf13-c4f7-4180-a2de-6766db99cd63" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_3d285d00-d59a-48a0-8fea-20b5157501f6" xlink:to="loc_us-gaap_ConcentrationRiskTable_ead2bf13-c4f7-4180-a2de-6766db99cd63" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_e649a914-c157-4b14-9790-a294b3835c73" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_ead2bf13-c4f7-4180-a2de-6766db99cd63" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_e649a914-c157-4b14-9790-a294b3835c73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e649a914-c157-4b14-9790-a294b3835c73_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_e649a914-c157-4b14-9790-a294b3835c73" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_e649a914-c157-4b14-9790-a294b3835c73_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_79957e55-5247-4b02-9365-3f40d1698395" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_e649a914-c157-4b14-9790-a294b3835c73" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_79957e55-5247-4b02-9365-3f40d1698395" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableMember_e95db2d4-a991-4ac5-8531-d2a509ee0e43" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_79957e55-5247-4b02-9365-3f40d1698395" xlink:to="loc_us-gaap_AccountsReceivableMember_e95db2d4-a991-4ac5-8531-d2a509ee0e43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_43bdf623-47de-4177-82dc-85416d7a1682" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_79957e55-5247-4b02-9365-3f40d1698395" xlink:to="loc_us-gaap_SalesRevenueNetMember_43bdf623-47de-4177-82dc-85416d7a1682" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_TradeAccountsPayablesMember_21165d91-bb09-49d4-a349-abc049be89f8" xlink:href="snd-20240630.xsd#snd_TradeAccountsPayablesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_79957e55-5247-4b02-9365-3f40d1698395" xlink:to="loc_snd_TradeAccountsPayablesMember_21165d91-bb09-49d4-a349-abc049be89f8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsTotalMember_fbd12d16-59a3-4266-98e9-8b6e4a239a82" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfGoodsTotalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_79957e55-5247-4b02-9365-3f40d1698395" xlink:to="loc_us-gaap_CostOfGoodsTotalMember_fbd12d16-59a3-4266-98e9-8b6e4a239a82" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_7b29ba06-e2ce-4a3a-a2fc-5795e0fc516b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_ead2bf13-c4f7-4180-a2de-6766db99cd63" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_7b29ba06-e2ce-4a3a-a2fc-5795e0fc516b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_7b29ba06-e2ce-4a3a-a2fc-5795e0fc516b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_7b29ba06-e2ce-4a3a-a2fc-5795e0fc516b" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_7b29ba06-e2ce-4a3a-a2fc-5795e0fc516b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_9ec6a80f-d1a9-4da4-9697-ce18558021dd" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_7b29ba06-e2ce-4a3a-a2fc-5795e0fc516b" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_9ec6a80f-d1a9-4da4-9697-ce18558021dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_4add84ae-5c7d-4f2c-9df7-c2dbc14b533f" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_9ec6a80f-d1a9-4da4-9697-ce18558021dd" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_4add84ae-5c7d-4f2c-9df7-c2dbc14b533f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplierConcentrationRiskMember_8a9bde75-cf05-427f-8e3c-506dd1d3d068" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplierConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_9ec6a80f-d1a9-4da4-9697-ce18558021dd" xlink:to="loc_us-gaap_SupplierConcentrationRiskMember_8a9bde75-cf05-427f-8e3c-506dd1d3d068" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_8d297eb1-77d0-4ede-bee6-6f59d1c1736d" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_ead2bf13-c4f7-4180-a2de-6766db99cd63" xlink:to="loc_srt_MajorCustomersAxis_8d297eb1-77d0-4ede-bee6-6f59d1c1736d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_8d297eb1-77d0-4ede-bee6-6f59d1c1736d_default" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_8d297eb1-77d0-4ede-bee6-6f59d1c1736d" xlink:to="loc_srt_NameOfMajorCustomerDomain_8d297eb1-77d0-4ede-bee6-6f59d1c1736d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_6f658bee-cd70-43de-9808-5b0bcac30e1b" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_8d297eb1-77d0-4ede-bee6-6f59d1c1736d" xlink:to="loc_srt_NameOfMajorCustomerDomain_6f658bee-cd70-43de-9808-5b0bcac30e1b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_ThreeCustomersMember_d2895a33-36a9-47cd-b231-05fb01098718" xlink:href="snd-20240630.xsd#snd_ThreeCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_6f658bee-cd70-43de-9808-5b0bcac30e1b" xlink:to="loc_snd_ThreeCustomersMember_d2895a33-36a9-47cd-b231-05fb01098718" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_FourCustomersMember_422ffc29-d10f-4345-b2f5-875a99885c1b" xlink:href="snd-20240630.xsd#snd_FourCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_6f658bee-cd70-43de-9808-5b0bcac30e1b" xlink:to="loc_snd_FourCustomersMember_422ffc29-d10f-4345-b2f5-875a99885c1b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_FiveCustomersMember_20561527-a9d8-4d81-a5b9-d6e01d32cf1e" xlink:href="snd-20240630.xsd#snd_FiveCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_6f658bee-cd70-43de-9808-5b0bcac30e1b" xlink:to="loc_snd_FiveCustomersMember_20561527-a9d8-4d81-a5b9-d6e01d32cf1e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_OneCustomersMember_628c4020-c9b5-4ef4-8c2f-b0c6d30372a8" xlink:href="snd-20240630.xsd#snd_OneCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_6f658bee-cd70-43de-9808-5b0bcac30e1b" xlink:to="loc_snd_OneCustomersMember_628c4020-c9b5-4ef4-8c2f-b0c6d30372a8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_TwoCustomersMember_1d6d7236-dffc-45d4-818f-0a774b153a69" xlink:href="snd-20240630.xsd#snd_TwoCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_6f658bee-cd70-43de-9808-5b0bcac30e1b" xlink:to="loc_snd_TwoCustomersMember_1d6d7236-dffc-45d4-818f-0a774b153a69" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_7a701727-f9a4-4cac-bffd-8ca4b9cf73c3" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_ead2bf13-c4f7-4180-a2de-6766db99cd63" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_7a701727-f9a4-4cac-bffd-8ca4b9cf73c3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_7a701727-f9a4-4cac-bffd-8ca4b9cf73c3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_7a701727-f9a4-4cac-bffd-8ca4b9cf73c3" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_7a701727-f9a4-4cac-bffd-8ca4b9cf73c3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_70dc55b1-383f-4f48-984d-a446708a016a" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionBySupplierAxis_7a701727-f9a4-4cac-bffd-8ca4b9cf73c3" xlink:to="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_70dc55b1-383f-4f48-984d-a446708a016a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_TwoVendorsMember_738f6015-e2c1-412b-8642-35742bfd33ae" xlink:href="snd-20240630.xsd#snd_TwoVendorsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_70dc55b1-383f-4f48-984d-a446708a016a" xlink:to="loc_snd_TwoVendorsMember_738f6015-e2c1-412b-8642-35742bfd33ae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_OneVendorMember_76a9a04a-d3eb-453f-bb26-63063feb16a1" xlink:href="snd-20240630.xsd#snd_OneVendorMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSupplierDomain_70dc55b1-383f-4f48-984d-a446708a016a" xlink:to="loc_snd_OneVendorMember_76a9a04a-d3eb-453f-bb26-63063feb16a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_bcff609a-1a12-4484-801c-f8bee2ecb3a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_3d285d00-d59a-48a0-8fea-20b5157501f6" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_bcff609a-1a12-4484-801c-f8bee2ecb3a2" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.smartsand.com/role/CommitmentsandContingenciesLitigationDetails" xlink:type="simple" xlink:href="snd-20240630.xsd#CommitmentsandContingenciesLitigationDetails"/>
  <link:definitionLink xlink:role="http://www.smartsand.com/role/CommitmentsandContingenciesLitigationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_64c290df-3f84-4881-b197-67b682e8a27b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsNotesAndLoansReceivableLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_9b0869db-7485-4999-9409-a35539720a9d" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_64c290df-3f84-4881-b197-67b682e8a27b" xlink:to="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_9b0869db-7485-4999-9409-a35539720a9d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_5a6d8362-aa5b-40f1-886d-5266511f03a2" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAccountsNotesLoansAndFinancingReceivableTable_9b0869db-7485-4999-9409-a35539720a9d" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_5a6d8362-aa5b-40f1-886d-5266511f03a2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_5a6d8362-aa5b-40f1-886d-5266511f03a2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_5a6d8362-aa5b-40f1-886d-5266511f03a2" xlink:to="loc_us-gaap_LossContingencyNatureDomain_5a6d8362-aa5b-40f1-886d-5266511f03a2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_f21971f2-ccc1-42fc-aa9d-6dcb7db0549b" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_5a6d8362-aa5b-40f1-886d-5266511f03a2" xlink:to="loc_us-gaap_LossContingencyNatureDomain_f21971f2-ccc1-42fc-aa9d-6dcb7db0549b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_snd_PermitBondMember_d40d7787-ee4d-400b-a049-11168b5a891a" xlink:href="snd-20240630.xsd#snd_PermitBondMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_f21971f2-ccc1-42fc-aa9d-6dcb7db0549b" xlink:to="loc_snd_PermitBondMember_d40d7787-ee4d-400b-a049-11168b5a891a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_49a5f35f-d5ff-40e9-a912-9a443db62173" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GuaranteeObligationsCurrentCarryingValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccountsNotesAndLoansReceivableLineItems_64c290df-3f84-4881-b197-67b682e8a27b" xlink:to="loc_us-gaap_GuaranteeObligationsCurrentCarryingValue_49a5f35f-d5ff-40e9-a912-9a443db62173" xlink:type="arc" order="0"/>
  </link:definitionLink>
</link:linkbase>
