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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019c2e64-4acf-7814-99db-50c0c39d5553,g:e091157d-37e6-43ee-84db-fdc5ac4bbbc8-->
<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.lambweston.com/role/ConsolidatedStatementsofStockholdersEquityUnaudited" xlink:type="simple" xlink:href="lw-20260222.xsd#ConsolidatedStatementsofStockholdersEquityUnaudited"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/ConsolidatedStatementsofStockholdersEquityUnaudited" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019c2e64-4ba6-7107-ba07-4133040fbb33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable_019c2e64-4ba6-77c3-b544-9af6188f6b77" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_019c2e64-4ba6-7107-ba07-4133040fbb33" xlink:to="loc_us-gaap_StatementTable_019c2e64-4ba6-77c3-b544-9af6188f6b77" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019c2e64-4ba6-79d8-86b8-b52096252a48" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_019c2e64-4ba6-77c3-b544-9af6188f6b77" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019c2e64-4ba6-79d8-86b8-b52096252a48" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-79d8-86b8-b52096252a48_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019c2e64-4ba6-79d8-86b8-b52096252a48" xlink:to="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-79d8-86b8-b52096252a48_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-7834-8452-3bfcb5b78f95" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019c2e64-4ba6-79d8-86b8-b52096252a48" xlink:to="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-7834-8452-3bfcb5b78f95" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019c2e64-4ba6-7b77-8918-147c8471bcf2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-7834-8452-3bfcb5b78f95" xlink:to="loc_us-gaap_CommonStockMember_019c2e64-4ba6-7b77-8918-147c8471bcf2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockCommonMember_019c2e64-4ba6-7ebb-b8e9-aaa099a8cc12" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockCommonMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-7834-8452-3bfcb5b78f95" xlink:to="loc_us-gaap_TreasuryStockCommonMember_019c2e64-4ba6-7ebb-b8e9-aaa099a8cc12" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019c2e64-4ba6-7d74-85e9-c7e225d6bbd8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-7834-8452-3bfcb5b78f95" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019c2e64-4ba6-7d74-85e9-c7e225d6bbd8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019c2e64-4ba6-7c18-bb82-c12ae0a8d426" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetainedEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-7834-8452-3bfcb5b78f95" xlink:to="loc_us-gaap_RetainedEarningsMember_019c2e64-4ba6-7c18-bb82-c12ae0a8d426" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019c2e64-4ba6-7d63-beed-7e0bb2e2317c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019c2e64-4ba6-7834-8452-3bfcb5b78f95" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019c2e64-4ba6-7d63-beed-7e0bb2e2317c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_019c2e64-4ba6-7107-ba07-4133040fbb33" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019c2e64-4ba6-7e14-ba1e-6819331dbf73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_us-gaap_CommonStockSharesOutstanding_019c2e64-4ba6-7e14-ba1e-6819331dbf73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c2e64-4ba6-7fe6-9093-ad70e467e797" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_us-gaap_StockholdersEquity_019c2e64-4ba6-7fe6-9093-ad70e467e797" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_019c2e64-4ba6-76f5-9367-fc437a4de009" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_us-gaap_DividendsCommonStockCash_019c2e64-4ba6-76f5-9367-fc437a4de009" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019c2e64-4ba6-7568-af60-3b10d1370679" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019c2e64-4ba6-7568-af60-3b10d1370679" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019c2e64-4ba6-741a-85d5-561e1b4d35c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019c2e64-4ba6-741a-85d5-561e1b4d35c1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions_019c2e64-4ba6-7183-8a53-81fc037936dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationAndExerciseOfStockOptions_019c2e64-4ba6-7183-8a53-81fc037936dd" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_StockRepurchasedAndStockWithheldToCoverTaxesDuringPeriodShares_019c2e64-4ba6-78cf-bae3-570854dd69da" xlink:href="lw-20260222.xsd#lw_StockRepurchasedAndStockWithheldToCoverTaxesDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_lw_StockRepurchasedAndStockWithheldToCoverTaxesDuringPeriodShares_019c2e64-4ba6-78cf-bae3-570854dd69da" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_StockRepurchasedAndStockWithheldToCoverTaxesDuringPeriodValue_019c2e64-4ba6-7395-900d-321a65b7f3e7" xlink:href="lw-20260222.xsd#lw_StockRepurchasedAndStockWithheldToCoverTaxesDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_lw_StockRepurchasedAndStockWithheldToCoverTaxesDuringPeriodValue_019c2e64-4ba6-7395-900d-321a65b7f3e7" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityOther_019c2e64-4ba6-7578-8e17-5e9628df6470" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquityOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_us-gaap_StockholdersEquityOther_019c2e64-4ba6-7578-8e17-5e9628df6470" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_019c2e64-4ba6-7fa4-b333-748e4f4d876e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019c2e64-4ba6-7cdd-9705-268ff0fd51d7" xlink:to="loc_us-gaap_ComprehensiveIncomeNetOfTax_019c2e64-4ba6-7fa4-b333-748e4f4d876e" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding_019c2e64-4ba6-74fb-a639-c587d904e2ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c2e64-4ba6-7616-94c7-77dfb56dadfa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/COSTSAVINGSPROGRAMANDRESTRUCTURINGNarrativeDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#COSTSAVINGSPROGRAMANDRESTRUCTURINGNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/COSTSAVINGSPROGRAMANDRESTRUCTURINGNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba6-74b2-96e8-03e349c91639" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba6-7ee6-be72-9b61f8ff3f8c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba6-74b2-96e8-03e349c91639" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba6-7ee6-be72-9b61f8ff3f8c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba6-79ce-95c8-e8b8869db801" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba6-7ee6-be72-9b61f8ff3f8c" xlink:to="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba6-79ce-95c8-e8b8869db801" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba6-79ce-95c8-e8b8869db801_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba6-79ce-95c8-e8b8869db801" xlink:to="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba6-79ce-95c8-e8b8869db801_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba6-7070-a38d-75fa761d8e17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba6-79ce-95c8-e8b8869db801" xlink:to="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba6-7070-a38d-75fa761d8e17" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RestructuringPlanAndCostSavingsProgramMember_019d2113-63c0-7654-9dc7-cd49e2b70ac3" xlink:href="lw-20260222.xsd#lw_RestructuringPlanAndCostSavingsProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba6-7070-a38d-75fa761d8e17" xlink:to="loc_lw_RestructuringPlanAndCostSavingsProgramMember_019d2113-63c0-7654-9dc7-cd49e2b70ac3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019c2e64-4ba6-7b0d-8611-ce13974e475d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba6-7ee6-be72-9b61f8ff3f8c" xlink:to="loc_srt_RangeAxis_019c2e64-4ba6-7b0d-8611-ce13974e475d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019c2e64-4ba6-7b0d-8611-ce13974e475d_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019c2e64-4ba6-7b0d-8611-ce13974e475d" xlink:to="loc_srt_RangeMember_019c2e64-4ba6-7b0d-8611-ce13974e475d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019c2e64-4ba6-71d6-b53f-36bb3075e226" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019c2e64-4ba6-7b0d-8611-ce13974e475d" xlink:to="loc_srt_RangeMember_019c2e64-4ba6-71d6-b53f-36bb3075e226" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019c2e64-4ba6-7bbc-a1fd-bb79eb26de6b" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MinimumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019c2e64-4ba6-71d6-b53f-36bb3075e226" xlink:to="loc_srt_MinimumMember_019c2e64-4ba6-7bbc-a1fd-bb79eb26de6b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019c2e64-4ba6-75bc-ab72-1f803e400a4c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MaximumMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019c2e64-4ba6-71d6-b53f-36bb3075e226" xlink:to="loc_srt_MaximumMember_019c2e64-4ba6-75bc-ab72-1f803e400a4c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis_019d056f-e4de-7ad5-8103-378c0a792a83" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementScenarioAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba6-7ee6-be72-9b61f8ff3f8c" xlink:to="loc_srt_StatementScenarioAxis_019d056f-e4de-7ad5-8103-378c0a792a83" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019d056f-e4de-7ad5-8103-378c0a792a83_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementScenarioAxis_019d056f-e4de-7ad5-8103-378c0a792a83" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019d056f-e4de-7ad5-8103-378c0a792a83_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain_019d056f-e4de-7e6c-821f-ebbf17907519" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementScenarioAxis_019d056f-e4de-7ad5-8103-378c0a792a83" xlink:to="loc_srt_ScenarioUnspecifiedDomain_019d056f-e4de-7e6c-821f-ebbf17907519" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember_019d0adb-2bbf-7c40-9d9c-0917af11c2af" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ScenarioForecastMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ScenarioUnspecifiedDomain_019d056f-e4de-7e6c-821f-ebbf17907519" xlink:to="loc_srt_ScenarioForecastMember_019d0adb-2bbf-7c40-9d9c-0917af11c2af" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_019d056f-e4de-7323-aba1-7b8222c9079e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringAndRelatedCostExpectedCost1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba6-74b2-96e8-03e349c91639" xlink:to="loc_us-gaap_RestructuringAndRelatedCostExpectedCost1_019d056f-e4de-7323-aba1-7b8222c9079e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019d0593-405c-77d6-b164-75a84e01e94c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba6-74b2-96e8-03e349c91639" xlink:to="loc_us-gaap_RestructuringCharges_019d0593-405c-77d6-b164-75a84e01e94c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RestructuringAndRelatedCostCashExpenditure_019d0593-405c-70dc-b08f-d1b30a8b7f92" xlink:href="lw-20260222.xsd#lw_RestructuringAndRelatedCostCashExpenditure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba6-74b2-96e8-03e349c91639" xlink:to="loc_lw_RestructuringAndRelatedCostCashExpenditure_019d0593-405c-70dc-b08f-d1b30a8b7f92" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RestructuringAndRelatedCostNoncashExpenditure_019d0593-405c-724f-b75e-a774698b6db1" xlink:href="lw-20260222.xsd#lw_RestructuringAndRelatedCostNoncashExpenditure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba6-74b2-96e8-03e349c91639" xlink:to="loc_lw_RestructuringAndRelatedCostNoncashExpenditure_019d0593-405c-724f-b75e-a774698b6db1" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/COSTSAVINGSPROGRAMANDRESTRUCTURINGSummaryofthePreTaxCostsDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#COSTSAVINGSPROGRAMANDRESTRUCTURINGSummaryofthePreTaxCostsDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/COSTSAVINGSPROGRAMANDRESTRUCTURINGSummaryofthePreTaxCostsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7bd1-858b-b93ea7d2a8b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba7-7960-9383-1aa3487574b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7bd1-858b-b93ea7d2a8b7" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba7-7960-9383-1aa3487574b3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_019c2e64-4ba7-7810-886b-526629671408" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostAndReserveAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba7-7960-9383-1aa3487574b3" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_019c2e64-4ba7-7810-886b-526629671408" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7810-886b-526629671408_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_019c2e64-4ba7-7810-886b-526629671408" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7810-886b-526629671408_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7fb7-83d2-c757f76822b3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TypeOfRestructuringDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringCostAndReserveAxis_019c2e64-4ba7-7810-886b-526629671408" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7fb7-83d2-c757f76822b3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RetirementOfAssetsAndOtherPlantChargesMember_019d0589-01d9-7e43-9496-1516248a85ff" xlink:href="lw-20260222.xsd#lw_RetirementOfAssetsAndOtherPlantChargesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7fb7-83d2-c757f76822b3" xlink:to="loc_lw_RetirementOfAssetsAndOtherPlantChargesMember_019d0589-01d9-7e43-9496-1516248a85ff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractTerminationMember_019c2e64-4ba7-7c31-8896-0dcae8a43e0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractTerminationMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7fb7-83d2-c757f76822b3" xlink:to="loc_us-gaap_ContractTerminationMember_019c2e64-4ba7-7c31-8896-0dcae8a43e0f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_InventoryWriteOffMember_019c2e64-4ba7-7e1c-a19e-9d7493087689" xlink:href="lw-20260222.xsd#lw_InventoryWriteOffMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7fb7-83d2-c757f76822b3" xlink:to="loc_lw_InventoryWriteOffMember_019c2e64-4ba7-7e1c-a19e-9d7493087689" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeSeveranceMember_019c2e64-4ba7-746b-a556-60cd786535f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeSeveranceMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7fb7-83d2-c757f76822b3" xlink:to="loc_us-gaap_EmployeeSeveranceMember_019c2e64-4ba7-746b-a556-60cd786535f6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_ProfessionalServicesAndOtherMember_019c2e64-4ba7-7c2d-ba08-c64c9164391a" xlink:href="lw-20260222.xsd#lw_ProfessionalServicesAndOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019c2e64-4ba7-7fb7-83d2-c757f76822b3" xlink:to="loc_lw_ProfessionalServicesAndOtherMember_019c2e64-4ba7-7c2d-ba08-c64c9164391a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba7-7e67-971d-c749bf1d9fae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba7-7960-9383-1aa3487574b3" xlink:to="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba7-7e67-971d-c749bf1d9fae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-7e67-971d-c749bf1d9fae_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba7-7e67-971d-c749bf1d9fae" xlink:to="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-7e67-971d-c749bf1d9fae_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-72d6-8e42-eff2e69ec0eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba7-7e67-971d-c749bf1d9fae" xlink:to="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-72d6-8e42-eff2e69ec0eb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RestructuringPlanAndCostSavingsProgramMember_019c2e64-4ba7-7b1c-a020-2f152077ef02" xlink:href="lw-20260222.xsd#lw_RestructuringPlanAndCostSavingsProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-72d6-8e42-eff2e69ec0eb" xlink:to="loc_lw_RestructuringPlanAndCostSavingsProgramMember_019c2e64-4ba7-7b1c-a020-2f152077ef02" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019c2e64-4ba7-7336-8129-f44e76e23dd5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostsAndAssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7bd1-858b-b93ea7d2a8b7" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019c2e64-4ba7-7336-8129-f44e76e23dd5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RestructuringChargesSaleOfNonCoreAssets_019d309f-8266-7961-8e23-4ed57eb15ee8" xlink:href="lw-20260222.xsd#lw_RestructuringChargesSaleOfNonCoreAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7bd1-858b-b93ea7d2a8b7" xlink:to="loc_lw_RestructuringChargesSaleOfNonCoreAssets_019d309f-8266-7961-8e23-4ed57eb15ee8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019d0582-21bc-7f61-9575-9e0214660f35" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7bd1-858b-b93ea7d2a8b7" xlink:to="loc_us-gaap_RestructuringCharges_019d0582-21bc-7f61-9575-9e0214660f35" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RestructuringChargesGainLossOnSaleOfNonCoreAssets_019d2931-1d9d-7527-a720-a56a9e89c5d2" xlink:href="lw-20260222.xsd#lw_RestructuringChargesGainLossOnSaleOfNonCoreAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7bd1-858b-b93ea7d2a8b7" xlink:to="loc_lw_RestructuringChargesGainLossOnSaleOfNonCoreAssets_019d2931-1d9d-7527-a720-a56a9e89c5d2" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/COSTSAVINGSPROGRAMANDRESTRUCTURINGRestructuringPlanDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#COSTSAVINGSPROGRAMANDRESTRUCTURINGRestructuringPlanDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/COSTSAVINGSPROGRAMANDRESTRUCTURINGRestructuringPlanDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7f1c-8940-988147f865b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostAndReserveLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba7-7a12-96a5-355aa6a41b6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRestructuringAndRelatedCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7f1c-8940-988147f865b2" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba7-7a12-96a5-355aa6a41b6e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_019c2e64-4ba7-7f66-89e1-43a6dd3057a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba7-7a12-96a5-355aa6a41b6e" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_019c2e64-4ba7-7f66-89e1-43a6dd3057a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7f66-89e1-43a6dd3057a1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_019c2e64-4ba7-7f66-89e1-43a6dd3057a1" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7f66-89e1-43a6dd3057a1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7377-a8e7-6511f92269c5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_019c2e64-4ba7-7f66-89e1-43a6dd3057a1" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7377-a8e7-6511f92269c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_019c2e64-4ba7-76aa-bbf7-374c67a68ac5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7377-a8e7-6511f92269c5" xlink:to="loc_us-gaap_CostOfSalesMember_019c2e64-4ba7-76aa-bbf7-374c67a68ac5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RestructuringExpenseMember_019c2e64-4ba7-7c3e-bf38-af6b1eb27321" xlink:href="lw-20260222.xsd#lw_RestructuringExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7377-a8e7-6511f92269c5" xlink:to="loc_lw_RestructuringExpenseMember_019c2e64-4ba7-7c3e-bf38-af6b1eb27321" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_EquityMethodInvestmentEarningsMember_019c2e64-4ba7-73ce-8862-f21b8f82f40f" xlink:href="lw-20260222.xsd#lw_EquityMethodInvestmentEarningsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7377-a8e7-6511f92269c5" xlink:to="loc_lw_EquityMethodInvestmentEarningsMember_019c2e64-4ba7-73ce-8862-f21b8f82f40f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba7-7e0b-bbf1-e552c7cf0d45" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019c2e64-4ba7-7a12-96a5-355aa6a41b6e" xlink:to="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba7-7e0b-bbf1-e552c7cf0d45" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-7e0b-bbf1-e552c7cf0d45_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba7-7e0b-bbf1-e552c7cf0d45" xlink:to="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-7e0b-bbf1-e552c7cf0d45_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-70be-9cc0-5b0ae64efbb6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringPlanDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RestructuringPlanAxis_019c2e64-4ba7-7e0b-bbf1-e552c7cf0d45" xlink:to="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-70be-9cc0-5b0ae64efbb6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RestructuringPlanAndCostSavingsProgramMember_019c2e64-4ba7-7b4e-96d3-76905aef5d5c" xlink:href="lw-20260222.xsd#lw_RestructuringPlanAndCostSavingsProgramMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_019c2e64-4ba7-70be-9cc0-5b0ae64efbb6" xlink:to="loc_lw_RestructuringPlanAndCostSavingsProgramMember_019c2e64-4ba7-7b4e-96d3-76905aef5d5c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019d29d3-3ebe-7a51-9aa0-63c068f6232f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7f1c-8940-988147f865b2" xlink:to="loc_us-gaap_RestructuringCharges_019d29d3-3ebe-7a51-9aa0-63c068f6232f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019d29e2-45f5-79be-afc4-d2ca9038c1d8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostsAndAssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019c2e64-4ba7-7f1c-8940-988147f865b2" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019d29e2-45f5-79be-afc4-d2ca9038c1d8" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/PROPERTYPLANTANDEQUIPMENTComponentsDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#PROPERTYPLANTANDEQUIPMENTComponentsDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/PROPERTYPLANTANDEQUIPMENTComponentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-75c1-8e9c-41e6c5fef837" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7f35-b495-cdd6f0f7ee9e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-75c1-8e9c-41e6c5fef837" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7f35-b495-cdd6f0f7ee9e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019c2e64-4ba7-7e28-931d-6c498c334d71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7f35-b495-cdd6f0f7ee9e" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019c2e64-4ba7-7e28-931d-6c498c334d71" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019c2e64-4ba7-7e28-931d-6c498c334d71_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019c2e64-4ba7-7e28-931d-6c498c334d71" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019c2e64-4ba7-7e28-931d-6c498c334d71_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019c2e64-4ba7-73e1-aa8e-12b59a8e3ff6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019c2e64-4ba7-7e28-931d-6c498c334d71" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019c2e64-4ba7-73e1-aa8e-12b59a8e3ff6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandAndLandImprovementsMember_019c2e64-4ba7-7445-8b39-13b571f8486d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandAndLandImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019c2e64-4ba7-73e1-aa8e-12b59a8e3ff6" xlink:to="loc_us-gaap_LandAndLandImprovementsMember_019c2e64-4ba7-7445-8b39-13b571f8486d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingAndBuildingImprovementsMember_019c2e64-4ba7-73c5-abbe-e96cd4db3e05" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingAndBuildingImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019c2e64-4ba7-73e1-aa8e-12b59a8e3ff6" xlink:to="loc_us-gaap_BuildingAndBuildingImprovementsMember_019c2e64-4ba7-73c5-abbe-e96cd4db3e05" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_019c2e64-4ba7-755a-a738-78ab0f78fb27" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FurnitureAndFixturesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019c2e64-4ba7-73e1-aa8e-12b59a8e3ff6" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_019c2e64-4ba7-755a-a738-78ab0f78fb27" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_019c2e64-4ba7-7ae6-8432-7c3ba6ec3ade" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019c2e64-4ba7-73e1-aa8e-12b59a8e3ff6" xlink:to="loc_us-gaap_ConstructionInProgressMember_019c2e64-4ba7-7ae6-8432-7c3ba6ec3ade" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_019c2e64-4ba7-7248-92e7-63cfdc339920" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-75c1-8e9c-41e6c5fef837" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetBeforeAccumulatedDepreciationAndAmortization_019c2e64-4ba7-7248-92e7-63cfdc339920" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_019c2e64-4ba7-7e2c-8eb7-62cbe9a9e5cd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-75c1-8e9c-41e6c5fef837" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAccumulatedDepreciationAndAmortization_019c2e64-4ba7-7e2c-8eb7-62cbe9a9e5cd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019c2e64-4ba7-7c94-adcb-9ad05010c96c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-75c1-8e9c-41e6c5fef837" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentAndFinanceLeaseRightOfUseAssetAfterAccumulatedDepreciationAndAmortization_019c2e64-4ba7-7c94-adcb-9ad05010c96c" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/PROPERTYPLANTANDEQUIPMENTNarrativeDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#PROPERTYPLANTANDEQUIPMENTNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/PROPERTYPLANTANDEQUIPMENTNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-7e07-ac17-77b57c4d2472" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7e1c-a0b9-f503b714b352" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-7e07-ac17-77b57c4d2472" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7e1c-a0b9-f503b714b352" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019d013e-e318-76cd-8043-d35d5bb07062" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7e1c-a0b9-f503b714b352" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019d013e-e318-76cd-8043-d35d5bb07062" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019d013e-e318-76cd-8043-d35d5bb07062_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019d013e-e318-76cd-8043-d35d5bb07062" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019d013e-e318-76cd-8043-d35d5bb07062_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019d013e-e318-750c-8c2f-a5bcd67171a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019d013e-e318-76cd-8043-d35d5bb07062" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019d013e-e318-750c-8c2f-a5bcd67171a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConstructionInProgressMember_019d013e-e318-7d09-8485-92a14124ad65" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConstructionInProgressMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019d013e-e318-750c-8c2f-a5bcd67171a7" xlink:to="loc_us-gaap_ConstructionInProgressMember_019d013e-e318-7d09-8485-92a14124ad65" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_019c2e64-4ba7-7e77-a769-9d8bde47073b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-7e07-ac17-77b57c4d2472" xlink:to="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_019c2e64-4ba7-7e77-a769-9d8bde47073b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestCostsCapitalized_019d013e-e318-792b-b1ba-0626474d1172" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestCostsCapitalized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-7e07-ac17-77b57c4d2472" xlink:to="loc_us-gaap_InterestCostsCapitalized_019d013e-e318-792b-b1ba-0626474d1172" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/PROPERTYPLANTANDEQUIPMENTDepreciationAndAmortizationBetweenCostDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#PROPERTYPLANTANDEQUIPMENTDepreciationAndAmortizationBetweenCostDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/PROPERTYPLANTANDEQUIPMENTDepreciationAndAmortizationBetweenCostDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-7d1d-b4a5-604eb5f96a62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7b07-a018-effd4fde3f64" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-7d1d-b4a5-604eb5f96a62" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7b07-a018-effd4fde3f64" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_019c2e64-4ba7-76f6-ba4c-6ba5f6a1b96f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019c2e64-4ba7-7b07-a018-effd4fde3f64" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_019c2e64-4ba7-76f6-ba4c-6ba5f6a1b96f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-76f6-ba4c-6ba5f6a1b96f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_019c2e64-4ba7-76f6-ba4c-6ba5f6a1b96f" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-76f6-ba4c-6ba5f6a1b96f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7467-88a8-75d1923d99c8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_019c2e64-4ba7-76f6-ba4c-6ba5f6a1b96f" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7467-88a8-75d1923d99c8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_019c2e64-4ba7-7765-84cf-f739fe0cfea0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7467-88a8-75d1923d99c8" xlink:to="loc_us-gaap_CostOfSalesMember_019c2e64-4ba7-7765-84cf-f739fe0cfea0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_019c2e64-4ba7-7751-b94e-c2c16eec5447" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SellingGeneralAndAdministrativeExpensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019c2e64-4ba7-7467-88a8-75d1923d99c8" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_019c2e64-4ba7-7751-b94e-c2c16eec5447" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Depreciation_019c2e64-4ba7-79be-a9cf-67e79afe0b18" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Depreciation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-7d1d-b4a5-604eb5f96a62" xlink:to="loc_us-gaap_Depreciation_019c2e64-4ba7-79be-a9cf-67e79afe0b18" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentForAmortization_019c2e64-4ba7-7fa2-8edd-e1789fc7e3a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentForAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019c2e64-4ba7-7d1d-b4a5-604eb5f96a62" xlink:to="loc_us-gaap_AdjustmentForAmortization_019c2e64-4ba7-7fa2-8edd-e1789fc7e3a9" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/GOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSScheduleofChangesintheCarryingAmountofGoodwillDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#GOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSScheduleofChangesintheCarryingAmountofGoodwillDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/GOODWILLANDOTHERIDENTIFIABLEINTANGIBLEASSETSScheduleofChangesintheCarryingAmountofGoodwillDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems_019c2e64-4ba7-7b49-9827-76325c10fce1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfGoodwillTable_019c2e64-4ba7-7690-a082-c91432e411d7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfGoodwillTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GoodwillLineItems_019c2e64-4ba7-7b49-9827-76325c10fce1" xlink:to="loc_us-gaap_ScheduleOfGoodwillTable_019c2e64-4ba7-7690-a082-c91432e411d7" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019c2e64-4ba7-7998-9185-8074c27b223e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfGoodwillTable_019c2e64-4ba7-7690-a082-c91432e411d7" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019c2e64-4ba7-7998-9185-8074c27b223e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019c2e64-4ba7-7998-9185-8074c27b223e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019c2e64-4ba7-7998-9185-8074c27b223e" xlink:to="loc_us-gaap_SegmentDomain_019c2e64-4ba7-7998-9185-8074c27b223e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019c2e64-4ba7-71b3-b654-fd7561dd13c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019c2e64-4ba7-7998-9185-8074c27b223e" xlink:to="loc_us-gaap_SegmentDomain_019c2e64-4ba7-71b3-b654-fd7561dd13c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_SegmentsNorthAmericaMember_019c2e64-4ba7-7d84-92e6-9d2c55a6d7e9" xlink:href="lw-20260222.xsd#lw_SegmentsNorthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019c2e64-4ba7-71b3-b654-fd7561dd13c1" xlink:to="loc_lw_SegmentsNorthAmericaMember_019c2e64-4ba7-7d84-92e6-9d2c55a6d7e9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_SegmentsInternationalMember_019c2e64-4ba7-775c-8eb9-4bb2aafadccf" xlink:href="lw-20260222.xsd#lw_SegmentsInternationalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019c2e64-4ba7-71b3-b654-fd7561dd13c1" xlink:to="loc_lw_SegmentsInternationalMember_019c2e64-4ba7-775c-8eb9-4bb2aafadccf" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillRollForward_019c2e64-4ba7-77d6-9e9f-57bb2442a63f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillLineItems_019c2e64-4ba7-7b49-9827-76325c10fce1" xlink:to="loc_us-gaap_GoodwillRollForward_019c2e64-4ba7-77d6-9e9f-57bb2442a63f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019c2e64-4ba7-7233-9479-bd051ed94925" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_019c2e64-4ba7-77d6-9e9f-57bb2442a63f" xlink:to="loc_us-gaap_Goodwill_019c2e64-4ba7-7233-9479-bd051ed94925" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_019c2e64-4ba7-7afb-9f0d-a551d55e59c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillForeignCurrencyTranslationGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GoodwillRollForward_019c2e64-4ba7-77d6-9e9f-57bb2442a63f" xlink:to="loc_us-gaap_GoodwillForeignCurrencyTranslationGainLoss_019c2e64-4ba7-7afb-9f0d-a551d55e59c1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019c2e64-4ba7-77bc-9183-674f65e47ed3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_Goodwill"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/DEBTANDFINANCINGOBLIGATIONSScheduleofDebtIncludingFinancingObligationsDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#DEBTANDFINANCINGOBLIGATIONSScheduleofDebtIncludingFinancingObligationsDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/DEBTANDFINANCINGOBLIGATIONSScheduleofDebtIncludingFinancingObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019c2e64-4c5b-77f4-a1b6-db289ed39d0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable_019c2e64-4c5b-7bf8-8611-8fb1e9dfb5d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c2e64-4c5b-77f4-a1b6-db289ed39d0d" xlink:to="loc_us-gaap_DebtInstrumentTable_019c2e64-4c5b-7bf8-8611-8fb1e9dfb5d3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019c2e64-4c5b-7815-a280-171b58252f8b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c2e64-4c5b-7bf8-8611-8fb1e9dfb5d3" xlink:to="loc_us-gaap_DebtInstrumentAxis_019c2e64-4c5b-7815-a280-171b58252f8b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7815-a280-171b58252f8b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c2e64-4c5b-7815-a280-171b58252f8b" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7815-a280-171b58252f8b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c2e64-4c5b-7815-a280-171b58252f8b" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RevolvingCreditFacilityNovember2016Member_019c2e64-4c5b-7e20-bc6b-71d6da11bd47" xlink:href="lw-20260222.xsd#lw_RevolvingCreditFacilityNovember2016Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_RevolvingCreditFacilityNovember2016Member_019c2e64-4c5b-7e20-bc6b-71d6da11bd47" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_OtherCreditFacilitiesMember_019c2e64-4c5b-7fc1-bb83-50df456cbe11" xlink:href="lw-20260222.xsd#lw_OtherCreditFacilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_OtherCreditFacilitiesMember_019c2e64-4c5b-7fc1-bb83-50df456cbe11" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_TermThreeLoanFacilityDue2030Member_019c2e64-4c5b-7700-832e-d190442eded2" xlink:href="lw-20260222.xsd#lw_TermThreeLoanFacilityDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_TermThreeLoanFacilityDue2030Member_019c2e64-4c5b-7700-832e-d190442eded2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_TermFourLoanFacilityDue2029Member_019c2e64-4c5b-791d-a6f0-813b12aafce5" xlink:href="lw-20260222.xsd#lw_TermFourLoanFacilityDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_TermFourLoanFacilityDue2029Member_019c2e64-4c5b-791d-a6f0-813b12aafce5" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_TermFiveLoanFacilityDue2031Member_019c2e64-4c5b-7f6e-bd7d-59faf160982e" xlink:href="lw-20260222.xsd#lw_TermFiveLoanFacilityDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_TermFiveLoanFacilityDue2031Member_019c2e64-4c5b-7f6e-bd7d-59faf160982e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RmbTermLoanFacilityDueFebruary2027Member_019c2e64-4c5b-7087-bd6f-95ac6dfe569f" xlink:href="lw-20260222.xsd#lw_RmbTermLoanFacilityDueFebruary2027Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_RmbTermLoanFacilityDueFebruary2027Member_019c2e64-4c5b-7087-bd6f-95ac6dfe569f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_RMBLoanFacilityDueSeptember2029Member_019c2e64-4c5b-74a0-a3fa-b706506c6131" xlink:href="lw-20260222.xsd#lw_RMBLoanFacilityDueSeptember2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_RMBLoanFacilityDueSeptember2029Member_019c2e64-4c5b-74a0-a3fa-b706506c6131" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_EuroTermLoanFacilityDue2029Member_019c2e64-4c5b-79ed-bcbf-37d8c123f1e2" xlink:href="lw-20260222.xsd#lw_EuroTermLoanFacilityDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_EuroTermLoanFacilityDue2029Member_019c2e64-4c5b-79ed-bcbf-37d8c123f1e2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_A4.875SeniorNotesDue2028Member_019c2e64-4c5b-7854-bb20-3064924777d0" xlink:href="lw-20260222.xsd#lw_A4.875SeniorNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_A4.875SeniorNotesDue2028Member_019c2e64-4c5b-7854-bb20-3064924777d0" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_A4.125SeniorNotesDue2030Member_019c2e64-4c5b-73dd-be27-78cba3405cc0" xlink:href="lw-20260222.xsd#lw_A4.125SeniorNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_A4.125SeniorNotesDue2030Member_019c2e64-4c5b-73dd-be27-78cba3405cc0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_A4.375SeniorNotesDue2032Member_019c2e64-4c5b-7952-8dc2-42807ff5c485" xlink:href="lw-20260222.xsd#lw_A4.375SeniorNotesDue2032Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7111-891a-10af5e6c8d42" xlink:to="loc_lw_A4.375SeniorNotesDue2032Member_019c2e64-4c5b-7952-8dc2-42807ff5c485" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis_019c2e64-4c5b-71a3-aeaa-493449d0d6a9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c2e64-4c5b-7bf8-8611-8fb1e9dfb5d3" xlink:to="loc_us-gaap_ShortTermDebtTypeAxis_019c2e64-4c5b-71a3-aeaa-493449d0d6a9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019c2e64-4c5b-71a3-aeaa-493449d0d6a9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019c2e64-4c5b-71a3-aeaa-493449d0d6a9" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019c2e64-4c5b-71a3-aeaa-493449d0d6a9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain_019c2e64-4c5b-7bc3-96a4-be866d096289" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis_019c2e64-4c5b-71a3-aeaa-493449d0d6a9" xlink:to="loc_us-gaap_ShortTermDebtTypeDomain_019c2e64-4c5b-7bc3-96a4-be866d096289" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019c2e64-4c5b-7688-9fef-6caa7ff2fc1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_019c2e64-4c5b-7bc3-96a4-be866d096289" xlink:to="loc_us-gaap_SecuredDebtMember_019c2e64-4c5b-7688-9fef-6caa7ff2fc1c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019c2e64-4c5b-7f53-bb92-52d77f274079" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain_019c2e64-4c5b-7bc3-96a4-be866d096289" xlink:to="loc_us-gaap_LineOfCreditMember_019c2e64-4c5b-7f53-bb92-52d77f274079" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019c2e64-4c5b-7096-82ff-0c8ff312ab44" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c2e64-4c5b-7bf8-8611-8fb1e9dfb5d3" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019c2e64-4c5b-7096-82ff-0c8ff312ab44" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c2e64-4c5b-7096-82ff-0c8ff312ab44_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019c2e64-4c5b-7096-82ff-0c8ff312ab44" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c2e64-4c5b-7096-82ff-0c8ff312ab44_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c2e64-4c5b-78dc-93bd-8f6aee24e4b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermDebtTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LongtermDebtTypeAxis_019c2e64-4c5b-7096-82ff-0c8ff312ab44" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c2e64-4c5b-78dc-93bd-8f6aee24e4b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember_019c2e64-4c5b-7e26-a471-fd2762db4209" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SecuredDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c2e64-4c5b-78dc-93bd-8f6aee24e4b7" xlink:to="loc_us-gaap_SecuredDebtMember_019c2e64-4c5b-7e26-a471-fd2762db4209" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LoansPayableMember_019c2e64-4c5b-74a2-aee4-213e3d1015e0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LoansPayableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c2e64-4c5b-78dc-93bd-8f6aee24e4b7" xlink:to="loc_us-gaap_LoansPayableMember_019c2e64-4c5b-74a2-aee4-213e3d1015e0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019c2e64-4c5b-7e48-a6a6-7c4182c03c33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c2e64-4c5b-78dc-93bd-8f6aee24e4b7" xlink:to="loc_us-gaap_SeniorNotesMember_019c2e64-4c5b-7e48-a6a6-7c4182c03c33" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019c2e64-4c5b-7034-90c8-3523c1fbafc3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtInstrumentTable_019c2e64-4c5b-7bf8-8611-8fb1e9dfb5d3" xlink:to="loc_us-gaap_CreditFacilityAxis_019c2e64-4c5b-7034-90c8-3523c1fbafc3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019c2e64-4c5b-7034-90c8-3523c1fbafc3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CreditFacilityAxis_019c2e64-4c5b-7034-90c8-3523c1fbafc3" xlink:to="loc_us-gaap_CreditFacilityDomain_019c2e64-4c5b-7034-90c8-3523c1fbafc3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019c2e64-4c5b-702d-baab-701ba3b4c90f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CreditFacilityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CreditFacilityAxis_019c2e64-4c5b-7034-90c8-3523c1fbafc3" xlink:to="loc_us-gaap_CreditFacilityDomain_019c2e64-4c5b-702d-baab-701ba3b4c90f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019c2e64-4c5b-7cd3-8ec1-2e74a8e894df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_CreditFacilityDomain_019c2e64-4c5b-702d-baab-701ba3b4c90f" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019c2e64-4c5b-7cd3-8ec1-2e74a8e894df" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c2e64-4c5b-77f4-a1b6-db289ed39d0d" xlink:to="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_019c2e64-4c5b-7800-b03b-b37e1030f97c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermBorrowings"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_us-gaap_ShortTermBorrowings_019c2e64-4c5b-7800-b03b-b37e1030f97c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019c2e64-4c5b-7db3-b23e-adaf467a4abf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentCarryingAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019c2e64-4c5b-7db3-b23e-adaf467a4abf" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability_019c2e64-4c5b-78ac-baa2-b8ae4262eda8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_us-gaap_FinanceLeaseLiability_019c2e64-4c5b-78ac-baa2-b8ae4262eda8" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_DebtGrossAndCapitalLeaseObligations_019c2e64-4c5b-7b9c-ac99-127ae312e049" xlink:href="lw-20260222.xsd#lw_DebtGrossAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_lw_DebtGrossAndCapitalLeaseObligations_019c2e64-4c5b-7b9c-ac99-127ae312e049" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019c2e64-4c5b-780f-8469-06d6dbaaa7b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_us-gaap_DebtInstrumentUnamortizedDiscountPremiumAndDebtIssuanceCostsNet_019c2e64-4c5b-780f-8469-06d6dbaaa7b1" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_ShortTermBorrowingsNetOfDebtDiscounts_019c2e64-4c5b-7ee4-b755-4f4581823e73" xlink:href="lw-20260222.xsd#lw_ShortTermBorrowingsNetOfDebtDiscounts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_lw_ShortTermBorrowingsNetOfDebtDiscounts_019c2e64-4c5b-7ee4-b755-4f4581823e73" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_019c2e64-4c5b-7a16-8a2c-adf80783076a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent_019c2e64-4c5b-7a16-8a2c-adf80783076a" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_019c2e64-4c5b-7105-a109-f052c05d27bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtAndCapitalLeaseObligations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_us-gaap_LongTermDebtAndCapitalLeaseObligations_019c2e64-4c5b-7105-a109-f052c05d27bc" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019c2e64-4c5b-77b7-bb31-a09603d283ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentsAbstract_019c2e64-4c5b-7e3e-b4b5-dc02b7c47a2a" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019c2e64-4c5b-77b7-bb31-a09603d283ff" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtIssuanceCostsLineOfCreditArrangementsNet_019c2e64-4c5b-76c6-bc1a-1f9b1b3230f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtIssuanceCostsLineOfCreditArrangementsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019c2e64-4c5b-77f4-a1b6-db289ed39d0d" xlink:to="loc_us-gaap_DebtIssuanceCostsLineOfCreditArrangementsNet_019c2e64-4c5b-76c6-bc1a-1f9b1b3230f5" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/FAIRVALUEMEASUREMENTSScheduleofFinancialAssetsandLiabilitiesMeasuredatFairValueonRecurringBasisDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#FAIRVALUEMEASUREMENTSScheduleofFinancialAssetsandLiabilitiesMeasuredatFairValueonRecurringBasisDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/FAIRVALUEMEASUREMENTSScheduleofFinancialAssetsandLiabilitiesMeasuredatFairValueonRecurringBasisDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019c2e64-4c5b-7e16-a4ab-d276c9c2cc78" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019c2e64-4c5b-7d44-bf90-4b646fe3bdc9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019c2e64-4c5b-7e16-a4ab-d276c9c2cc78" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019c2e64-4c5b-7d44-bf90-4b646fe3bdc9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019c2e64-4c5b-756c-8a75-9cf3dd9a7e5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019c2e64-4c5b-7d44-bf90-4b646fe3bdc9" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019c2e64-4c5b-756c-8a75-9cf3dd9a7e5f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-756c-8a75-9cf3dd9a7e5f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019c2e64-4c5b-756c-8a75-9cf3dd9a7e5f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-756c-8a75-9cf3dd9a7e5f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-72d0-9dde-3bd2990af373" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019c2e64-4c5b-756c-8a75-9cf3dd9a7e5f" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-72d0-9dde-3bd2990af373" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019c2e64-4c5b-720d-9251-4af29835510a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-72d0-9dde-3bd2990af373" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019c2e64-4c5b-720d-9251-4af29835510a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019c2e64-4c5b-72e1-b7ee-9ea87d1114c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-72d0-9dde-3bd2990af373" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019c2e64-4c5b-72e1-b7ee-9ea87d1114c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019c2e64-4c5b-7d77-8c6c-97a6e7fbc759" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel3Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-72d0-9dde-3bd2990af373" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019c2e64-4c5b-7d77-8c6c-97a6e7fbc759" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets_019c2e64-4c5b-7230-8474-b0cbc9876258" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019c2e64-4c5b-7e16-a4ab-d276c9c2cc78" xlink:to="loc_us-gaap_DerivativeAssets_019c2e64-4c5b-7230-8474-b0cbc9876258" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities_019c2e64-4c5b-7347-9031-9e2de43da2b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DerivativeLiabilities"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019c2e64-4c5b-7e16-a4ab-d276c9c2cc78" xlink:to="loc_us-gaap_DerivativeLiabilities_019c2e64-4c5b-7347-9031-9e2de43da2b1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_019c2e64-4c5b-7647-b894-d8d08acbef0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019c2e64-4c5b-7e16-a4ab-d276c9c2cc78" xlink:to="loc_us-gaap_DeferredCompensationLiabilityCurrentAndNoncurrent_019c2e64-4c5b-7647-b894-d8d08acbef0d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueNetAssetLiability_019c2e64-4c5b-7250-a282-1b0248e646d4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueNetAssetLiability"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019c2e64-4c5b-7e16-a4ab-d276c9c2cc78" xlink:to="loc_us-gaap_FairValueNetAssetLiability_019c2e64-4c5b-7250-a282-1b0248e646d4" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/FAIRVALUEMEASUREMENTSNarrativeDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#FAIRVALUEMEASUREMENTSNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/FAIRVALUEMEASUREMENTSNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019c2e64-4c5b-7ee5-9f5e-f5bf8c5c96bc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019c2e64-4c5b-718c-a04c-ff110257c9eb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByBalanceSheetGroupingTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019c2e64-4c5b-7ee5-9f5e-f5bf8c5c96bc" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019c2e64-4c5b-718c-a04c-ff110257c9eb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019c2e64-4c5b-7244-a4dc-99e6019d5cdb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019c2e64-4c5b-718c-a04c-ff110257c9eb" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019c2e64-4c5b-7244-a4dc-99e6019d5cdb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-7244-a4dc-99e6019d5cdb_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019c2e64-4c5b-7244-a4dc-99e6019d5cdb" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-7244-a4dc-99e6019d5cdb_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-7c58-b23e-f5f9e08d8c25" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019c2e64-4c5b-7244-a4dc-99e6019d5cdb" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-7c58-b23e-f5f9e08d8c25" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019c2e64-4c5b-7063-9fb4-4bb1f2b86cb2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019c2e64-4c5b-7c58-b23e-f5f9e08d8c25" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019c2e64-4c5b-7063-9fb4-4bb1f2b86cb2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementBasisAxis_019c2e64-4c5b-7d8a-9b09-47d14fd298bd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementBasisAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019c2e64-4c5b-718c-a04c-ff110257c9eb" xlink:to="loc_us-gaap_FairValueByMeasurementBasisAxis_019c2e64-4c5b-7d8a-9b09-47d14fd298bd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019c2e64-4c5b-7d8a-9b09-47d14fd298bd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019c2e64-4c5b-7d8a-9b09-47d14fd298bd" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019c2e64-4c5b-7d8a-9b09-47d14fd298bd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019c2e64-4c5b-76bc-afb3-011544fdb1bd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementBasisAxis_019c2e64-4c5b-7d8a-9b09-47d14fd298bd" xlink:to="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019c2e64-4c5b-76bc-afb3-011544fdb1bd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019c2e64-4c5b-7d90-a0c5-6b0393f29564" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain_019c2e64-4c5b-76bc-afb3-011544fdb1bd" xlink:to="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019c2e64-4c5b-7d90-a0c5-6b0393f29564" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019c2e64-4c5b-7ff7-8618-9978d839d575" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CarryingReportedAmountFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019c2e64-4c5b-7d90-a0c5-6b0393f29564" xlink:to="loc_us-gaap_CarryingReportedAmountFairValueDisclosureMember_019c2e64-4c5b-7ff7-8618-9978d839d575" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019c2e64-4c5b-7ea3-b688-1fb7ee7f6477" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EstimateOfFairValueFairValueDisclosureMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember_019c2e64-4c5b-7d90-a0c5-6b0393f29564" xlink:to="loc_us-gaap_EstimateOfFairValueFairValueDisclosureMember_019c2e64-4c5b-7ea3-b688-1fb7ee7f6477" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019c2e64-4c5b-7f3d-9872-a9453a9f2dbc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019c2e64-4c5b-718c-a04c-ff110257c9eb" xlink:to="loc_us-gaap_DebtInstrumentAxis_019c2e64-4c5b-7f3d-9872-a9453a9f2dbc" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7f3d-9872-a9453a9f2dbc_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c2e64-4c5b-7f3d-9872-a9453a9f2dbc" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-7f3d-9872-a9453a9f2dbc_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-75e2-aa4a-ac727bc11134" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DebtInstrumentAxis_019c2e64-4c5b-7f3d-9872-a9453a9f2dbc" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-75e2-aa4a-ac727bc11134" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_FixedRateDebtMember_019c2e64-4c5b-7a8d-81a1-b1f57254e2fe" xlink:href="lw-20260222.xsd#lw_FixedRateDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-75e2-aa4a-ac727bc11134" xlink:to="loc_lw_FixedRateDebtMember_019c2e64-4c5b-7a8d-81a1-b1f57254e2fe" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_VariableRateDebtMember_019c2e64-4c5b-78b8-b441-0f08ff77d6b5" xlink:href="lw-20260222.xsd#lw_VariableRateDebtMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c2e64-4c5b-75e2-aa4a-ac727bc11134" xlink:to="loc_lw_VariableRateDebtMember_019c2e64-4c5b-78b8-b441-0f08ff77d6b5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFairValue_019c2e64-4c5b-760d-a7dc-cc24bbd5f42c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019c2e64-4c5b-7ee5-9f5e-f5bf8c5c96bc" xlink:to="loc_us-gaap_DebtInstrumentFairValue_019c2e64-4c5b-760d-a7dc-cc24bbd5f42c" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/STOCKHOLDERSEQUITYNarrativeDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#STOCKHOLDERSEQUITYNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/STOCKHOLDERSEQUITYNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityClassOfTreasuryStockLineItems_019c2e64-4c5b-7811-91f3-6cd4a7636035" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityClassOfTreasuryStockLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfTreasuryStockTable_019c2e64-4c5b-7a18-9507-6ce3cc8e7a56" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfTreasuryStockTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_019c2e64-4c5b-7811-91f3-6cd4a7636035" xlink:to="loc_us-gaap_ClassOfTreasuryStockTable_019c2e64-4c5b-7a18-9507-6ce3cc8e7a56" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019c2e64-4c5b-79d9-8a8b-e41316fcfe34" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfTreasuryStockTable_019c2e64-4c5b-7a18-9507-6ce3cc8e7a56" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019c2e64-4c5b-79d9-8a8b-e41316fcfe34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019c2e64-4c5b-79d9-8a8b-e41316fcfe34_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019c2e64-4c5b-79d9-8a8b-e41316fcfe34" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019c2e64-4c5b-79d9-8a8b-e41316fcfe34_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019c2e64-4c5b-74e8-b06a-755efd5d25f9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_019c2e64-4c5b-79d9-8a8b-e41316fcfe34" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019c2e64-4c5b-74e8-b06a-755efd5d25f9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019c2e64-4c5b-7264-8fdf-8d12caa48846" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_019c2e64-4c5b-74e8-b06a-755efd5d25f9" xlink:to="loc_us-gaap_SubsequentEventMember_019c2e64-4c5b-7264-8fdf-8d12caa48846" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019c2e64-4c5b-7a09-a985-767d13bf168c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StockRepurchaseProgramAuthorizedAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_019c2e64-4c5b-7811-91f3-6cd4a7636035" xlink:to="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019c2e64-4c5b-7a09-a985-767d13bf168c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_019d05a0-1db1-7d3d-a162-6a7a88f370e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_019c2e64-4c5b-7811-91f3-6cd4a7636035" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_019d05a0-1db1-7d3d-a162-6a7a88f370e6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_019d05a0-1db1-7a34-bf52-2143b13e1fff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_019c2e64-4c5b-7811-91f3-6cd4a7636035" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_019d05a0-1db1-7a34-bf52-2143b13e1fff" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019d05a0-1db1-7c76-b47c-577b14cdcd3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_019c2e64-4c5b-7811-91f3-6cd4a7636035" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019d05a0-1db1-7c76-b47c-577b14cdcd3f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_019c2e64-4c5b-7a1c-b1aa-4ab62ed91410" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_019c2e64-4c5b-7811-91f3-6cd4a7636035" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_019c2e64-4c5b-7a1c-b1aa-4ab62ed91410" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockDividendsPerShareDeclared_019c2e64-4c5b-7e69-ba69-44b5c42f8611" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityClassOfTreasuryStockLineItems_019c2e64-4c5b-7811-91f3-6cd4a7636035" xlink:to="loc_us-gaap_CommonStockDividendsPerShareDeclared_019c2e64-4c5b-7e69-ba69-44b5c42f8611" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/STOCKHOLDERSEQUITYScheduleofShareRepurchaseProgramDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#STOCKHOLDERSEQUITYScheduleofShareRepurchaseProgramDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/STOCKHOLDERSEQUITYScheduleofShareRepurchaseProgramDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramLineItems_019d0189-2c2a-7ccb-af69-2efbc7ac49b3" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ShareRepurchaseProgramLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramTable_019d0189-2c2a-7483-9991-94bd3b9113df" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ShareRepurchaseProgramTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_ShareRepurchaseProgramLineItems_019d0189-2c2a-7ccb-af69-2efbc7ac49b3" xlink:to="loc_srt_ShareRepurchaseProgramTable_019d0189-2c2a-7483-9991-94bd3b9113df" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019d0189-2c2a-7589-bc03-943d3592584c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_ShareRepurchaseProgramTable_019d0189-2c2a-7483-9991-94bd3b9113df" xlink:to="loc_srt_RangeAxis_019d0189-2c2a-7589-bc03-943d3592584c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d0189-2c2a-7589-bc03-943d3592584c_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_RangeAxis_019d0189-2c2a-7589-bc03-943d3592584c" xlink:to="loc_srt_RangeMember_019d0189-2c2a-7589-bc03-943d3592584c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019d0189-2c2a-77a8-92bd-d6ff2b1e2759" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_RangeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_RangeAxis_019d0189-2c2a-7589-bc03-943d3592584c" xlink:to="loc_srt_RangeMember_019d0189-2c2a-77a8-92bd-d6ff2b1e2759" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_WeightedAverageMember_019d0189-2c2a-7b49-8fb7-fcca9b021081" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_WeightedAverageMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_RangeMember_019d0189-2c2a-77a8-92bd-d6ff2b1e2759" xlink:to="loc_srt_WeightedAverageMember_019d0189-2c2a-7b49-8fb7-fcca9b021081" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockSharesAcquired_019d0189-2c2a-7b74-9dde-80933109d394" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockSharesAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ShareRepurchaseProgramLineItems_019d0189-2c2a-7ccb-af69-2efbc7ac49b3" xlink:to="loc_us-gaap_TreasuryStockSharesAcquired_019d0189-2c2a-7b74-9dde-80933109d394" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019d0189-2c2a-747e-8e79-fd1cb69104a3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockAcquiredAverageCostPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ShareRepurchaseProgramLineItems_019d0189-2c2a-7ccb-af69-2efbc7ac49b3" xlink:to="loc_us-gaap_TreasuryStockAcquiredAverageCostPerShare_019d0189-2c2a-747e-8e79-fd1cb69104a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_019d0189-2c2a-79eb-b4d2-46450f0c7bd9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ShareRepurchaseProgramLineItems_019d0189-2c2a-7ccb-af69-2efbc7ac49b3" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_019d0189-2c2a-79eb-b4d2-46450f0c7bd9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019d0189-2c2a-7f26-a613-508a31b260b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ShareRepurchaseProgramLineItems_019d0189-2c2a-7ccb-af69-2efbc7ac49b3" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019d0189-2c2a-7f26-a613-508a31b260b0" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/STOCKHOLDERSEQUITYScheduleofAccumulatedOtherComprehensiveIncomeDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#STOCKHOLDERSEQUITYScheduleofAccumulatedOtherComprehensiveIncomeDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/STOCKHOLDERSEQUITYScheduleofAccumulatedOtherComprehensiveIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019c2e64-4c5b-7596-bbfa-60ebad9ef0ec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019c2e64-4c5b-79e7-98c9-c355147cb609" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019c2e64-4c5b-7596-bbfa-60ebad9ef0ec" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019c2e64-4c5b-79e7-98c9-c355147cb609" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019c2e64-4c5b-7fc0-8062-f23da6ea0c00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019c2e64-4c5b-79e7-98c9-c355147cb609" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019c2e64-4c5b-7fc0-8062-f23da6ea0c00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019c2e64-4c5b-7fc0-8062-f23da6ea0c00_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019c2e64-4c5b-7fc0-8062-f23da6ea0c00" xlink:to="loc_us-gaap_EquityComponentDomain_019c2e64-4c5b-7fc0-8062-f23da6ea0c00_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019c2e64-4c5b-75bf-b5e5-800669145fd1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityComponentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_019c2e64-4c5b-7fc0-8062-f23da6ea0c00" xlink:to="loc_us-gaap_EquityComponentDomain_019c2e64-4c5b-75bf-b5e5-800669145fd1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019c2e64-4c5b-7e1b-b6c5-a40b4905dd33" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019c2e64-4c5b-75bf-b5e5-800669145fd1" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019c2e64-4c5b-7e1b-b6c5-a40b4905dd33" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedTranslationAdjustmentMember_019c2e64-4c5b-7cd7-873b-9057e77c0e5c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedTranslationAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019c2e64-4c5b-7e1b-b6c5-a40b4905dd33" xlink:to="loc_us-gaap_AccumulatedTranslationAdjustmentMember_019c2e64-4c5b-7cd7-873b-9057e77c0e5c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_019c2e64-4c5b-7ee8-a4db-c358a0cf8a06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019c2e64-4c5b-7e1b-b6c5-a40b4905dd33" xlink:to="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_019c2e64-4c5b-7ee8-a4db-c358a0cf8a06" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_AccumulatedOtherComprehensiveIncomeOtherAttributableToParentMember_019c2e64-4c5b-7db9-b7c6-06e4bdb71028" xlink:href="lw-20260222.xsd#lw_AccumulatedOtherComprehensiveIncomeOtherAttributableToParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019c2e64-4c5b-7e1b-b6c5-a40b4905dd33" xlink:to="loc_lw_AccumulatedOtherComprehensiveIncomeOtherAttributableToParentMember_019c2e64-4c5b-7db9-b7c6-06e4bdb71028" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019c2e64-4c5b-70cf-893c-f37770842fd9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AOCIAttributableToParentNetOfTaxRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019c2e64-4c5b-7596-bbfa-60ebad9ef0ec" xlink:to="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019c2e64-4c5b-70cf-893c-f37770842fd9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c2e64-4c5b-7e0c-b723-9ecc697a0a7b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019c2e64-4c5b-70cf-893c-f37770842fd9" xlink:to="loc_us-gaap_StockholdersEquity_019c2e64-4c5b-7e0c-b723-9ecc697a0a7b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_019c2e64-4c5b-7aa8-843d-b4ce5279f300" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019c2e64-4c5b-70cf-893c-f37770842fd9" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_019c2e64-4c5b-7aa8-843d-b4ce5279f300" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019c2e64-4c5b-7861-8492-f8acf8d86f1e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019c2e64-4c5b-70cf-893c-f37770842fd9" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019c2e64-4c5b-7861-8492-f8acf8d86f1e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019c2e64-4c5b-7bcd-b1dd-259ec9b8f657" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/SEGMENTSScheduleoftheReconciliationofAdjustedEBITDAtoNetIncomeDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#SEGMENTSScheduleoftheReconciliationofAdjustedEBITDAtoNetIncomeDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/SEGMENTSScheduleoftheReconciliationofAdjustedEBITDAtoNetIncomeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019c2e64-4c5b-77a2-abe0-0980108233cb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019c2e64-4c5b-77a2-abe0-0980108233cb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsAxis_019c2e64-4c5b-7685-b8e5-de96c308408d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019c2e64-4c5b-77a2-abe0-0980108233cb" xlink:to="loc_srt_ConsolidationItemsAxis_019c2e64-4c5b-7685-b8e5-de96c308408d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019c2e64-4c5b-7685-b8e5-de96c308408d_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ConsolidationItemsAxis_019c2e64-4c5b-7685-b8e5-de96c308408d" xlink:to="loc_srt_ConsolidationItemsDomain_019c2e64-4c5b-7685-b8e5-de96c308408d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidationItemsDomain_019c2e64-4c5b-7a5a-a24f-f676f3039e08" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ConsolidationItemsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ConsolidationItemsAxis_019c2e64-4c5b-7685-b8e5-de96c308408d" xlink:to="loc_srt_ConsolidationItemsDomain_019c2e64-4c5b-7a5a-a24f-f676f3039e08" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingSegmentsMember_019c2e64-4c5b-720a-907a-c07b58dd1489" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingSegmentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019c2e64-4c5b-7a5a-a24f-f676f3039e08" xlink:to="loc_us-gaap_OperatingSegmentsMember_019c2e64-4c5b-720a-907a-c07b58dd1489" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateNonSegmentMember_019c2e64-4c5b-79e6-ba2f-9dd8d897927e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CorporateNonSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ConsolidationItemsDomain_019c2e64-4c5b-7a5a-a24f-f676f3039e08" xlink:to="loc_us-gaap_CorporateNonSegmentMember_019c2e64-4c5b-79e6-ba2f-9dd8d897927e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019c2e64-4c5b-78eb-87cb-09cc257fa15b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019c2e64-4c5b-77a2-abe0-0980108233cb" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019c2e64-4c5b-78eb-87cb-09cc257fa15b" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019c2e64-4c5b-78eb-87cb-09cc257fa15b_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019c2e64-4c5b-78eb-87cb-09cc257fa15b" xlink:to="loc_us-gaap_SegmentDomain_019c2e64-4c5b-78eb-87cb-09cc257fa15b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019c2e64-4c5b-78d8-ac47-df60c5befe76" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_019c2e64-4c5b-78eb-87cb-09cc257fa15b" xlink:to="loc_us-gaap_SegmentDomain_019c2e64-4c5b-78d8-ac47-df60c5befe76" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_SegmentsNorthAmericaMember_019c2e64-4c5b-78e5-88aa-ee8e4ff70b1c" xlink:href="lw-20260222.xsd#lw_SegmentsNorthAmericaMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019c2e64-4c5b-78d8-ac47-df60c5befe76" xlink:to="loc_lw_SegmentsNorthAmericaMember_019c2e64-4c5b-78e5-88aa-ee8e4ff70b1c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_SegmentsInternationalMember_019c2e64-4c5b-7fbf-83ba-51f4688d1bb9" xlink:href="lw-20260222.xsd#lw_SegmentsInternationalMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019c2e64-4c5b-78d8-ac47-df60c5befe76" xlink:to="loc_lw_SegmentsInternationalMember_019c2e64-4c5b-7fbf-83ba-51f4688d1bb9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_019d016f-fe4a-740e-af45-7d48b4676229" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019c2e64-4c5b-77a2-abe0-0980108233cb" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_019d016f-fe4a-740e-af45-7d48b4676229" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019d016f-fe4a-740e-af45-7d48b4676229_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_019d016f-fe4a-740e-af45-7d48b4676229" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019d016f-fe4a-740e-af45-7d48b4676229_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019d016f-fe4a-7b3b-b5b3-864b2e084933" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_019d016f-fe4a-740e-af45-7d48b4676229" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019d016f-fe4a-7b3b-b5b3-864b2e084933" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesMember_019d016f-fe4a-70ec-899b-6628696ea069" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019d016f-fe4a-7b3b-b5b3-864b2e084933" xlink:to="loc_us-gaap_SalesMember_019d016f-fe4a-70ec-899b-6628696ea069" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_019d016f-fe4a-70b2-af4b-a8504996cb32" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CostOfSalesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019d016f-fe4a-7b3b-b5b3-864b2e084933" xlink:to="loc_us-gaap_CostOfSalesMember_019d016f-fe4a-70b2-af4b-a8504996cb32" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c2e64-4c5b-714e-9741-2a177f7f747a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019c2e64-4c5b-714e-9741-2a177f7f747a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_019c2e64-4c5b-7bdf-8819-cade5f9e79ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SegmentReportingOtherItemAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_019c2e64-4c5b-7bdf-8819-cade5f9e79ac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_019c2e64-4c5b-7ef3-985b-cfb968d579d6" xlink:href="lw-20260222.xsd#lw_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_lw_AdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_019c2e64-4c5b-7ef3-985b-cfb968d579d6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_DepreciationDepletionAndAmortizationIncludingInterestExpenseIncomeTaxExpenseAndDepreciationAndAmortizationFromEquityMethodInvestments_019c2e64-4c5b-79c3-a141-143a288102f1" xlink:href="lw-20260222.xsd#lw_DepreciationDepletionAndAmortizationIncludingInterestExpenseIncomeTaxExpenseAndDepreciationAndAmortizationFromEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_lw_DepreciationDepletionAndAmortizationIncludingInterestExpenseIncomeTaxExpenseAndDepreciationAndAmortizationFromEquityMethodInvestments_019c2e64-4c5b-79c3-a141-143a288102f1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts_019c2e64-4c5b-7002-a472-d99f4cee2e00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_UnrealizedGainLossOnDerivativesAndCommodityContracts_019c2e64-4c5b-7002-a472-d99f4cee2e00" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019c2e64-4c5b-7e11-8703-842e44fc7cf2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyTransactionGainLossBeforeTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_ForeignCurrencyTransactionGainLossBeforeTax_019c2e64-4c5b-7e11-8703-842e44fc7cf2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_GainLossBlueChipSwapTransaction_019c2e64-4c5b-79ca-8958-a158db5542e0" xlink:href="lw-20260222.xsd#lw_GainLossBlueChipSwapTransaction"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_lw_GainLossBlueChipSwapTransaction_019c2e64-4c5b-79ca-8958-a158db5542e0" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019c2e64-4c5b-7521-91fc-5283dea2e4c4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllocatedShareBasedCompensationExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019c2e64-4c5b-7521-91fc-5283dea2e4c4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_ItemsImpactingComparabilityAbstract_019c2e64-4c5b-75c9-b391-da58b1a154d9" xlink:href="lw-20260222.xsd#lw_ItemsImpactingComparabilityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_lw_ItemsImpactingComparabilityAbstract_019c2e64-4c5b-75c9-b391-da58b1a154d9" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019c2e64-4c5b-7dd7-a825-99f701dab7b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCostsAndAssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lw_ItemsImpactingComparabilityAbstract_019c2e64-4c5b-75c9-b391-da58b1a154d9" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019c2e64-4c5b-7dd7-a825-99f701dab7b7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_SellingGeneralAndAdministrativeExpenseShareholderActivismExpense_019c2e64-4c5b-7470-967e-55047ae2be22" xlink:href="lw-20260222.xsd#lw_SellingGeneralAndAdministrativeExpenseShareholderActivismExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lw_ItemsImpactingComparabilityAbstract_019c2e64-4c5b-75c9-b391-da58b1a154d9" xlink:to="loc_lw_SellingGeneralAndAdministrativeExpenseShareholderActivismExpense_019c2e64-4c5b-7470-967e-55047ae2be22" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_019c2e64-4c5b-7b30-8d90-520742052331" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PensionAndOtherPostretirementBenefitExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_lw_ItemsImpactingComparabilityAbstract_019c2e64-4c5b-75c9-b391-da58b1a154d9" xlink:to="loc_us-gaap_PensionAndOtherPostretirementBenefitExpense_019c2e64-4c5b-7b30-8d90-520742052331" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019c2e64-4c5b-76b2-84fc-c5f1ced83b51" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestIncomeExpenseNonoperatingNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_InterestIncomeExpenseNonoperatingNet_019c2e64-4c5b-76b2-84fc-c5f1ced83b51" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c2e64-4c5b-731c-ab4b-2e5fcc070482" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_019c2e64-4c5b-731c-ab4b-2e5fcc070482" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019c2e64-4c5b-7e48-853a-85022261e18a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019c2e64-4c5b-7e48-853a-85022261e18a" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019c2e64-4c5b-7822-a88d-9bb715d7cd73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_us-gaap_NetIncomeLoss_019c2e64-4c5b-7822-a88d-9bb715d7cd73" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_ExpenseBenefitOfVoluntaryProductWithdrawal_019c2e64-4c5b-7d17-b40d-43ede5d55f5d" xlink:href="lw-20260222.xsd#lw_ExpenseBenefitOfVoluntaryProductWithdrawal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_lw_ExpenseBenefitOfVoluntaryProductWithdrawal_019c2e64-4c5b-7d17-b40d-43ede5d55f5d" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_VoluntaryProductWithdrawalAfterTax_019d016f-fe4a-7472-81e1-c0d633e4735d" xlink:href="lw-20260222.xsd#lw_VoluntaryProductWithdrawalAfterTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_lw_VoluntaryProductWithdrawalAfterTax_019d016f-fe4a-7472-81e1-c0d633e4735d" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_ReductionToAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_019d01a2-c45c-749f-adf6-ec483b5df33e" xlink:href="lw-20260222.xsd#lw_ReductionToAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_lw_ReductionToAdjustedEarningsBeforeInterestTaxesDepreciationAndAmortization_019d01a2-c45c-749f-adf6-ec483b5df33e" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_InterestExpenseIncomeTaxExpenseAndDepreciationAndAmortizationFromEquityMethodInvestments_019c2e64-4c5b-7ed0-a369-2a087d9a4260" xlink:href="lw-20260222.xsd#lw_InterestExpenseIncomeTaxExpenseAndDepreciationAndAmortizationFromEquityMethodInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019c2e64-4c5b-7b77-9337-20fdd3b04bda" xlink:to="loc_lw_InterestExpenseIncomeTaxExpenseAndDepreciationAndAmortizationFromEquityMethodInvestments_019c2e64-4c5b-7ed0-a369-2a087d9a4260" xlink:type="arc" order="16"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.lambweston.com/role/COMMITMENTSCONTINGENCIESGUARANTEESANDLEGALPROCEEDINGSDetails" xlink:type="simple" xlink:href="lw-20260222.xsd#COMMITMENTSCONTINGENCIESGUARANTEESANDLEGALPROCEEDINGSDetails"/>
  <link:definitionLink xlink:role="http://www.lambweston.com/role/COMMITMENTSCONTINGENCIESGUARANTEESANDLEGALPROCEEDINGSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_019c2e64-4c5b-766a-b143-93493a7306f1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesTable_019c2e64-4c5b-7831-976f-5986028f5f62" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_019c2e64-4c5b-766a-b143-93493a7306f1" xlink:to="loc_us-gaap_LossContingenciesTable_019c2e64-4c5b-7831-976f-5986028f5f62" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019c2e64-4c5b-7225-978a-58ca7fdae9fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_019c2e64-4c5b-7831-976f-5986028f5f62" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019c2e64-4c5b-7225-978a-58ca7fdae9fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019c2e64-4c5b-7225-978a-58ca7fdae9fa_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019c2e64-4c5b-7225-978a-58ca7fdae9fa" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019c2e64-4c5b-7225-978a-58ca7fdae9fa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNatureDomain_019c2e64-4c5b-7118-bee5-7131110bf6ef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyNatureDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_019c2e64-4c5b-7225-978a-58ca7fdae9fa" xlink:to="loc_us-gaap_LossContingencyNatureDomain_019c2e64-4c5b-7118-bee5-7131110bf6ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_PutativeClassActionsMember_019c2e64-4c5b-7de8-83ab-a089e64c5463" xlink:href="lw-20260222.xsd#lw_PutativeClassActionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_019c2e64-4c5b-7118-bee5-7131110bf6ef" xlink:to="loc_lw_PutativeClassActionsMember_019c2e64-4c5b-7de8-83ab-a089e64c5463" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_ClassActionComplaintMember_019c2e64-4c5b-746a-9c9c-2f8041274ccb" xlink:href="lw-20260222.xsd#lw_ClassActionComplaintMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_019c2e64-4c5b-7118-bee5-7131110bf6ef" xlink:to="loc_lw_ClassActionComplaintMember_019c2e64-4c5b-746a-9c9c-2f8041274ccb" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_LossContingencyNumberOfPutativeClassActions_019c2e64-4c5b-7a94-b122-557a59ffef92" xlink:href="lw-20260222.xsd#lw_LossContingencyNumberOfPutativeClassActions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019c2e64-4c5b-766a-b143-93493a7306f1" xlink:to="loc_lw_LossContingencyNumberOfPutativeClassActions_019c2e64-4c5b-7a94-b122-557a59ffef92" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_lw_LossContingencyNumberOfConsolidatedComplaints_019c2e64-4c5b-7caf-a1b2-a0d2ca87291a" xlink:href="lw-20260222.xsd#lw_LossContingencyNumberOfConsolidatedComplaints"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019c2e64-4c5b-766a-b143-93493a7306f1" xlink:to="loc_lw_LossContingencyNumberOfConsolidatedComplaints_019c2e64-4c5b-7caf-a1b2-a0d2ca87291a" xlink:type="arc" order="1"/>
  </link:definitionLink>
</link:linkbase>
