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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019b0f52-8258-745f-a77e-84c95cc6c1dd,g:696faf7c-e08b-4d3c-aca4-726315d9b99d-->
<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.marvell.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="simple" xlink:href="mrvl-20260131.xsd#CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/CONSOLIDATEDSTATEMENTSOFSTOCKHOLDERSEQUITY" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementLineItems_019b0f52-85f6-7c5a-8210-7dca3831dd75" 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_019b0f52-85f6-779a-a654-651d14bd0d5b" 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_019b0f52-85f6-7c5a-8210-7dca3831dd75" xlink:to="loc_us-gaap_StatementTable_019b0f52-85f6-779a-a654-651d14bd0d5b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019b0f52-85f6-751b-9a98-97e5953c24a3" 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_019b0f52-85f6-779a-a654-651d14bd0d5b" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019b0f52-85f6-751b-9a98-97e5953c24a3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019b0f52-85f6-751b-9a98-97e5953c24a3_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_019b0f52-85f6-751b-9a98-97e5953c24a3" xlink:to="loc_us-gaap_EquityComponentDomain_019b0f52-85f6-751b-9a98-97e5953c24a3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019b0f52-85f6-721b-a5a0-5625ad5b5bdc" 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_019b0f52-85f6-751b-9a98-97e5953c24a3" xlink:to="loc_us-gaap_EquityComponentDomain_019b0f52-85f6-721b-a5a0-5625ad5b5bdc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019b0f52-85f6-772e-9fac-68ad17119628" 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_019b0f52-85f6-721b-a5a0-5625ad5b5bdc" xlink:to="loc_us-gaap_CommonStockMember_019b0f52-85f6-772e-9fac-68ad17119628" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_019b0f52-85f6-749e-996f-cd461875e00f" 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_019b0f52-85f6-721b-a5a0-5625ad5b5bdc" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_019b0f52-85f6-749e-996f-cd461875e00f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019b0f52-85f6-7c0c-9512-020adb5efad4" 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_019b0f52-85f6-721b-a5a0-5625ad5b5bdc" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_019b0f52-85f6-7c0c-9512-020adb5efad4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember_019b0f52-85f6-74ef-82aa-7e1e36491488" 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_019b0f52-85f6-721b-a5a0-5625ad5b5bdc" xlink:to="loc_us-gaap_RetainedEarningsMember_019b0f52-85f6-74ef-82aa-7e1e36491488" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" 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_019b0f52-85f6-7c5a-8210-7dca3831dd75" xlink:to="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_019b0f52-85f6-7c4f-ae81-ddec7a8c5c03" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_SharesOutstanding_019b0f52-85f6-7c4f-ae81-ddec7a8c5c03" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019b0f52-85f6-7614-8aae-6b0e3a2065a4" 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_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_StockholdersEquity_019b0f52-85f6-7614-8aae-6b0e3a2065a4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019b0f52-85f6-798f-9d5a-fb7236fb2bd3" 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_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_StockIssuedDuringPeriodSharesNewIssues_019b0f52-85f6-798f-9d5a-fb7236fb2bd3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019b0f52-85f6-7e2a-9a1a-0829d2a516ad" 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_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_StockIssuedDuringPeriodValueNewIssues_019b0f52-85f6-7e2a-9a1a-0829d2a516ad" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019b0f52-85f6-736a-91d4-677a86d69924" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019b0f52-85f6-736a-91d4-677a86d69924" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019b0f52-85f6-7c94-8730-297b74bda12f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_019b0f52-85f6-7c94-8730-297b74bda12f" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_019b0f52-85f6-7664-be3c-fcc75449c8c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_019b0f52-85f6-7664-be3c-fcc75449c8c6" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_019b0f52-85f6-7763-8116-11ec5a26267c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_019b0f52-85f6-7763-8116-11ec5a26267c" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_StockRepurchasedDuringPeriodValueIncludingExciseTax_019cb9ef-1076-7f57-8125-b4cf91d22146" xlink:href="mrvl-20260131.xsd#mrvl_StockRepurchasedDuringPeriodValueIncludingExciseTax"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_mrvl_StockRepurchasedDuringPeriodValueIncludingExciseTax_019cb9ef-1076-7f57-8125-b4cf91d22146" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_019b0f52-85f6-774a-bea1-82ea3a26a2dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued_019b0f52-85f6-774a-bea1-82ea3a26a2dc" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash_019b0f52-85f6-75f1-b351-31acd3aac54c" 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_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_DividendsCommonStockCash_019b0f52-85f6-75f1-b351-31acd3aac54c" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019b0f52-85f6-7d6c-b1d2-28d3024a8136" 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_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_NetIncomeLoss_019b0f52-85f6-7d6c-b1d2-28d3024a8136" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019b0f52-85f6-754b-a4b5-2099324b0325" 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_IncreaseDecreaseInStockholdersEquityRollForward_019b0f52-85f6-7ab9-991f-05b0a4d35346" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_019b0f52-85f6-754b-a4b5-2099324b0325" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesOutstanding_019b0f52-85f6-7df4-8e45-d9551d0c4b9c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesOutstanding"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019b0f52-85f6-7f3a-9d38-947fe0e5b2f3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/BasisofPresentationDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#BasisofPresentationDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/BasisofPresentationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_019be4b4-0c36-7fbf-8253-4be7c35f59cf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_019be4b4-0c36-75ad-8d9e-16bd21643f50" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_019be4b4-0c36-7fbf-8253-4be7c35f59cf" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_019be4b4-0c36-75ad-8d9e-16bd21643f50" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_019be4b4-0c36-7f4d-be0f-d15bfef95f06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_019be4b4-0c36-75ad-8d9e-16bd21643f50" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_019be4b4-0c36-7f4d-be0f-d15bfef95f06" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_019be4b4-0c36-7f4d-be0f-d15bfef95f06_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_019be4b4-0c36-7f4d-be0f-d15bfef95f06" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_019be4b4-0c36-7f4d-be0f-d15bfef95f06_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_019be4b4-0c36-77b0-ba0a-c617164f56c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_019be4b4-0c36-7f4d-be0f-d15bfef95f06" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_019be4b4-0c36-77b0-ba0a-c617164f56c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember_019be4b4-0c36-791e-a63b-8d43df5cbfe3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_019be4b4-0c36-77b0-ba0a-c617164f56c9" xlink:to="loc_us-gaap_DisposalGroupDisposedOfBySaleNotDiscontinuedOperationsMember_019be4b4-0c36-791e-a63b-8d43df5cbfe3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019be4b4-0c36-769b-a7d8-4ff085d4d3dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsTable_019be4b4-0c36-75ad-8d9e-16bd21643f50" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019be4b4-0c36-769b-a7d8-4ff085d4d3dd" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019be4b4-0c36-769b-a7d8-4ff085d4d3dd_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019be4b4-0c36-769b-a7d8-4ff085d4d3dd" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019be4b4-0c36-769b-a7d8-4ff085d4d3dd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019be4b4-0c36-789c-989b-4e72818c6a61" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019be4b4-0c36-769b-a7d8-4ff085d4d3dd" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019be4b4-0c36-789c-989b-4e72818c6a61" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MarvellTechnologysAutomotiveEthernetBusinessMember_019be4b4-0c36-791e-a25e-eb6fdc791cf7" xlink:href="mrvl-20260131.xsd#mrvl_MarvellTechnologysAutomotiveEthernetBusinessMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019be4b4-0c36-789c-989b-4e72818c6a61" xlink:to="loc_mrvl_MarvellTechnologysAutomotiveEthernetBusinessMember_019be4b4-0c36-791e-a25e-eb6fdc791cf7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_019be4b4-0c36-73ea-bbdf-f2a1a6e3aa0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_019be4b4-0c36-7fbf-8253-4be7c35f59cf" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_019be4b4-0c36-73ea-bbdf-f2a1a6e3aa0f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_019be4b4-0c36-7087-9e2e-d5285c57b438" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_019be4b4-0c36-7fbf-8253-4be7c35f59cf" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposal_019be4b4-0c36-7087-9e2e-d5285c57b438" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposalStatementOfIncomeExtensibleList_019c955c-938d-7af6-a9d0-f77f218d9cd8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposalStatementOfIncomeExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsLineItems_019be4b4-0c36-7fbf-8253-4be7c35f59cf" xlink:to="loc_us-gaap_DisposalGroupNotDiscontinuedOperationGainLossOnDisposalStatementOfIncomeExtensibleList_019c955c-938d-7af6-a9d0-f77f218d9cd8" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SignificantAccountingPoliciesConcentrationofCreditRiskandSignificantCustomersDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SignificantAccountingPoliciesConcentrationofCreditRiskandSignificantCustomersDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SignificantAccountingPoliciesConcentrationofCreditRiskandSignificantCustomersDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_019b0f52-85f6-7879-9020-bb44444ae417" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-720f-aac5-cffcd0cf647b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019b0f52-85f6-7879-9020-bb44444ae417" xlink:to="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-720f-aac5-cffcd0cf647b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f6-7e5a-baca-00592b1f1828" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-720f-aac5-cffcd0cf647b" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f6-7e5a-baca-00592b1f1828" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-7e5a-baca-00592b1f1828_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f6-7e5a-baca-00592b1f1828" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-7e5a-baca-00592b1f1828_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-7ab9-8ea6-b045a0c7ba73" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f6-7e5a-baca-00592b1f1828" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-7ab9-8ea6-b045a0c7ba73" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_019b0f52-85f6-729b-83e3-c11614729da9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-7ab9-8ea6-b045a0c7ba73" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_019b0f52-85f6-729b-83e3-c11614729da9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f6-7050-8bd8-9eaecaff2ec4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-720f-aac5-cffcd0cf647b" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f6-7050-8bd8-9eaecaff2ec4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7050-8bd8-9eaecaff2ec4_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f6-7050-8bd8-9eaecaff2ec4" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7050-8bd8-9eaecaff2ec4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7b20-b2ce-eb4d0b788b55" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f6-7050-8bd8-9eaecaff2ec4" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7b20-b2ce-eb4d0b788b55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableMember_019b0f52-85f6-780a-997c-9ebe5bd410b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsReceivableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7b20-b2ce-eb4d0b788b55" xlink:to="loc_us-gaap_AccountsReceivableMember_019b0f52-85f6-780a-997c-9ebe5bd410b0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_019b0f52-85f6-7c2c-ba0d-6a5cfbf735c4" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-720f-aac5-cffcd0cf647b" xlink:to="loc_srt_MajorCustomersAxis_019b0f52-85f6-7c2c-ba0d-6a5cfbf735c4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-7c2c-ba0d-6a5cfbf735c4_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_019b0f52-85f6-7c2c-ba0d-6a5cfbf735c4" xlink:to="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-7c2c-ba0d-6a5cfbf735c4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-795d-be40-9cb4e035e921" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_019b0f52-85f6-7c2c-ba0d-6a5cfbf735c4" xlink:to="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-795d-be40-9cb4e035e921" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_FourCustomersMember_019b0f52-85f6-7481-b738-17b364f2a8b3" xlink:href="mrvl-20260131.xsd#mrvl_FourCustomersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-795d-be40-9cb4e035e921" xlink:to="loc_mrvl_FourCustomersMember_019b0f52-85f6-7481-b738-17b364f2a8b3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f6-76a6-af79-81d6f65cf555" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019b0f52-85f6-7879-9020-bb44444ae417" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f6-76a6-af79-81d6f65cf555" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SignificantAccountingPoliciesScheduleofNetRevenueAttributabletoSignificantCustomersandDistributorsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SignificantAccountingPoliciesScheduleofNetRevenueAttributabletoSignificantCustomersandDistributorsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SignificantAccountingPoliciesScheduleofNetRevenueAttributabletoSignificantCustomersandDistributorsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskLineItems_019b0f52-85f6-76f8-b112-08b991513f15" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-7f2a-8dae-00ac7bccc5e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019b0f52-85f6-76f8-b112-08b991513f15" xlink:to="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-7f2a-8dae-00ac7bccc5e9" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f6-7591-89a6-edcea95aa049" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-7f2a-8dae-00ac7bccc5e9" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f6-7591-89a6-edcea95aa049" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7591-89a6-edcea95aa049_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f6-7591-89a6-edcea95aa049" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7591-89a6-edcea95aa049_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7ea1-985c-e56e6291a1a5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f6-7591-89a6-edcea95aa049" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7ea1-985c-e56e6291a1a5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_019b0f52-85f6-7718-b853-0edc3fb1c4ac" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f6-7ea1-985c-e56e6291a1a5" xlink:to="loc_us-gaap_SalesRevenueNetMember_019b0f52-85f6-7718-b853-0edc3fb1c4ac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f6-7cdd-818a-24cfc033ce29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-7f2a-8dae-00ac7bccc5e9" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f6-7cdd-818a-24cfc033ce29" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-7cdd-818a-24cfc033ce29_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f6-7cdd-818a-24cfc033ce29" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-7cdd-818a-24cfc033ce29_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-787e-9070-61c5ac220984" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f6-7cdd-818a-24cfc033ce29" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-787e-9070-61c5ac220984" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_019b0f52-85f6-7d9c-b34c-1da1a6b12f54" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f6-787e-9070-61c5ac220984" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_019b0f52-85f6-7d9c-b34c-1da1a6b12f54" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MajorCustomersAxis_019b0f52-85f6-7308-aec4-dcfa1074e4bf" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_MajorCustomersAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ConcentrationRiskTable_019b0f52-85f6-7f2a-8dae-00ac7bccc5e9" xlink:to="loc_srt_MajorCustomersAxis_019b0f52-85f6-7308-aec4-dcfa1074e4bf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-7308-aec4-dcfa1074e4bf_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_MajorCustomersAxis_019b0f52-85f6-7308-aec4-dcfa1074e4bf" xlink:to="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-7308-aec4-dcfa1074e4bf_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-7708-8bf9-1763bcc98195" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NameOfMajorCustomerDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_MajorCustomersAxis_019b0f52-85f6-7308-aec4-dcfa1074e4bf" xlink:to="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-7708-8bf9-1763bcc98195" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_CustomerAMember_019b0f52-85f6-742d-97a6-a13e37b49409" xlink:href="mrvl-20260131.xsd#mrvl_CustomerAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-7708-8bf9-1763bcc98195" xlink:to="loc_mrvl_CustomerAMember_019b0f52-85f6-742d-97a6-a13e37b49409" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_DistributorAMember_019b0f52-85f6-7773-8b8d-bbf9e4ad3ae7" xlink:href="mrvl-20260131.xsd#mrvl_DistributorAMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_NameOfMajorCustomerDomain_019b0f52-85f6-7708-8bf9-1763bcc98195" xlink:to="loc_mrvl_DistributorAMember_019b0f52-85f6-7773-8b8d-bbf9e4ad3ae7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f6-7f7b-a8c4-4e9d4e15017f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskLineItems_019b0f52-85f6-76f8-b112-08b991513f15" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f6-7f7b-a8c4-4e9d4e15017f" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SignificantAccountingPoliciesPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SignificantAccountingPoliciesPropertyandEquipmentNetDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SignificantAccountingPoliciesPropertyandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-85f6-7a78-99c1-47f60f46ee74" 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_019b0f52-85f6-7c63-9778-5195870fbe86" 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_019b0f52-85f6-7a78-99c1-47f60f46ee74" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019b0f52-85f6-7c63-9778-5195870fbe86" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019b0f52-85f6-702c-a51a-bdbeac384406" 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_019b0f52-85f6-7c63-9778-5195870fbe86" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019b0f52-85f6-702c-a51a-bdbeac384406" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-85f6-702c-a51a-bdbeac384406_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_019b0f52-85f6-702c-a51a-bdbeac384406" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-85f6-702c-a51a-bdbeac384406_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-85f6-71cd-b347-c2a0458d95c1" 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_019b0f52-85f6-702c-a51a-bdbeac384406" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-85f6-71cd-b347-c2a0458d95c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_019b0f52-85f6-7d5c-bd33-2e43b3879161" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MachineryAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-85f6-71cd-b347-c2a0458d95c1" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_019b0f52-85f6-7d5c-bd33-2e43b3879161" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_019b0f52-85f6-75fb-986f-49ca0eeb2641" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-85f6-71cd-b347-c2a0458d95c1" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_019b0f52-85f6-75fb-986f-49ca0eeb2641" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_019b0f52-85f6-75ea-80c0-e6779bbcf2fa" 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_019b0f52-85f6-71cd-b347-c2a0458d95c1" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_019b0f52-85f6-75ea-80c0-e6779bbcf2fa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingMember_019b0f52-85f6-71dc-b01e-dbc6f1077513" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-85f6-71cd-b347-c2a0458d95c1" xlink:to="loc_us-gaap_BuildingMember_019b0f52-85f6-71dc-b01e-dbc6f1077513" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BuildingImprovementsMember_019b0f52-85f6-7b2f-b390-84886ffe9174" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BuildingImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-85f6-71cd-b347-c2a0458d95c1" xlink:to="loc_us-gaap_BuildingImprovementsMember_019b0f52-85f6-7b2f-b390-84886ffe9174" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019b0f52-85f6-7386-b2a7-1d1a114c3b90" 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_ScheduleOfPropertyPlantAndEquipmentTable_019b0f52-85f6-7c63-9778-5195870fbe86" xlink:to="loc_srt_RangeAxis_019b0f52-85f6-7386-b2a7-1d1a114c3b90" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0f52-85f6-7386-b2a7-1d1a114c3b90_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_019b0f52-85f6-7386-b2a7-1d1a114c3b90" xlink:to="loc_srt_RangeMember_019b0f52-85f6-7386-b2a7-1d1a114c3b90_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0f52-85f6-75be-a532-a0c407aaa4be" 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_019b0f52-85f6-7386-b2a7-1d1a114c3b90" xlink:to="loc_srt_RangeMember_019b0f52-85f6-75be-a532-a0c407aaa4be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019b0f52-85f6-7112-a706-30fd1fa8479e" 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_019b0f52-85f6-75be-a532-a0c407aaa4be" xlink:to="loc_srt_MinimumMember_019b0f52-85f6-7112-a706-30fd1fa8479e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019b0f52-85f6-7592-91f1-da1df7ca5084" 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_019b0f52-85f6-75be-a532-a0c407aaa4be" xlink:to="loc_srt_MaximumMember_019b0f52-85f6-7592-91f1-da1df7ca5084" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019b0f52-85f6-79a7-be9f-b313fdc0fe93" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-85f6-7a78-99c1-47f60f46ee74" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentUsefulLife_019b0f52-85f6-79a7-be9f-b313fdc0fe93" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/RevenueNetRevenuebyEndMarketDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#RevenueNetRevenuebyEndMarketDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/RevenueNetRevenuebyEndMarketDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-788e-9f3f-1c7c2cf009b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7684-9ff8-f8e1cde7c2b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-788e-9f3f-1c7c2cf009b9" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7684-9ff8-f8e1cde7c2b8" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis_019b0f52-85f7-77a3-8625-eca43d91e562" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductOrServiceAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7684-9ff8-f8e1cde7c2b8" xlink:to="loc_srt_ProductOrServiceAxis_019b0f52-85f7-77a3-8625-eca43d91e562" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019b0f52-85f7-77a3-8625-eca43d91e562_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_019b0f52-85f7-77a3-8625-eca43d91e562" xlink:to="loc_srt_ProductsAndServicesDomain_019b0f52-85f7-77a3-8625-eca43d91e562_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain_019b0f52-85f7-7940-88ef-2225d8a4c091" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ProductsAndServicesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_019b0f52-85f7-77a3-8625-eca43d91e562" xlink:to="loc_srt_ProductsAndServicesDomain_019b0f52-85f7-7940-88ef-2225d8a4c091" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_DataCenterMember_019b0f52-85f7-7cfc-9500-89b17c3fbdd8" xlink:href="mrvl-20260131.xsd#mrvl_DataCenterMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019b0f52-85f7-7940-88ef-2225d8a4c091" xlink:to="loc_mrvl_DataCenterMember_019b0f52-85f7-7cfc-9500-89b17c3fbdd8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_CommunicationsAndOtherMember_019b5115-e9ca-7279-91aa-0c3e2bdbb606" xlink:href="mrvl-20260131.xsd#mrvl_CommunicationsAndOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_019b0f52-85f7-7940-88ef-2225d8a4c091" xlink:to="loc_mrvl_CommunicationsAndOtherMember_019b5115-e9ca-7279-91aa-0c3e2bdbb606" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-7e4f-bfd8-b80586d6e216" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7684-9ff8-f8e1cde7c2b8" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-7e4f-bfd8-b80586d6e216" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7e4f-bfd8-b80586d6e216_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-7e4f-bfd8-b80586d6e216" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7e4f-bfd8-b80586d6e216_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7c4f-8a22-add43ee93f55" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-7e4f-bfd8-b80586d6e216" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7c4f-8a22-add43ee93f55" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductConcentrationRiskMember_019b0f52-85f7-791f-9d75-431c6bdbc0fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProductConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7c4f-8a22-add43ee93f55" xlink:to="loc_us-gaap_ProductConcentrationRiskMember_019b0f52-85f7-791f-9d75-431c6bdbc0fa" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-7bf5-862f-02001bbe054e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7684-9ff8-f8e1cde7c2b8" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-7bf5-862f-02001bbe054e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-7bf5-862f-02001bbe054e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-7bf5-862f-02001bbe054e" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-7bf5-862f-02001bbe054e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-748b-b42b-27b86b715724" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-7bf5-862f-02001bbe054e" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-748b-b42b-27b86b715724" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_019b0f52-85f7-7b06-972e-48b3cc76ded9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-748b-b42b-27b86b715724" xlink:to="loc_us-gaap_SalesRevenueNetMember_019b0f52-85f7-7b06-972e-48b3cc76ded9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019b0f52-85f7-76b4-b969-e23d6878945c" 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_DisaggregationOfRevenueLineItems_019b0f52-85f7-788e-9f3f-1c7c2cf009b9" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019b0f52-85f7-76b4-b969-e23d6878945c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f7-75df-8f79-3d41b1271398" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-788e-9f3f-1c7c2cf009b9" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f7-75df-8f79-3d41b1271398" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/RevenueNetRevenueBasedonDestinationofShipmentDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#RevenueNetRevenueBasedonDestinationofShipmentDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/RevenueNetRevenueBasedonDestinationofShipmentDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-7431-819f-a21492b0b750" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7a58-9c59-98283b387a3f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-7431-819f-a21492b0b750" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7a58-9c59-98283b387a3f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019b0f52-85f7-741d-b33f-9056c39f8ecd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7a58-9c59-98283b387a3f" xlink:to="loc_srt_StatementGeographicalAxis_019b0f52-85f7-741d-b33f-9056c39f8ecd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019b0f52-85f7-741d-b33f-9056c39f8ecd_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019b0f52-85f7-741d-b33f-9056c39f8ecd" xlink:to="loc_srt_SegmentGeographicalDomain_019b0f52-85f7-741d-b33f-9056c39f8ecd_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019b0f52-85f7-7d6c-aa2d-7b66c636c7ba" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019b0f52-85f7-741d-b33f-9056c39f8ecd" xlink:to="loc_srt_SegmentGeographicalDomain_019b0f52-85f7-7d6c-aa2d-7b66c636c7ba" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_CN_019b0f52-85f7-713a-b7b8-e9875ccde18e" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_CN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-85f7-7d6c-aa2d-7b66c636c7ba" xlink:to="loc_country_CN_019b0f52-85f7-713a-b7b8-e9875ccde18e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_TW_019b0f52-85f7-75a2-a52b-5e7d160613a0" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_TW"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-85f7-7d6c-aa2d-7b66c636c7ba" xlink:to="loc_country_TW_019b0f52-85f7-75a2-a52b-5e7d160613a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019b0f52-85f7-72ee-bd69-ffe190c6863a" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-85f7-7d6c-aa2d-7b66c636c7ba" xlink:to="loc_country_US_019b0f52-85f7-72ee-bd69-ffe190c6863a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_OtherCountriesMember_019b0f52-85f7-7fea-8026-fbf88eed47cf" xlink:href="mrvl-20260131.xsd#mrvl_OtherCountriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-85f7-7d6c-aa2d-7b66c636c7ba" xlink:to="loc_mrvl_OtherCountriesMember_019b0f52-85f7-7fea-8026-fbf88eed47cf" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-70a8-986c-1ed15ec4677e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7a58-9c59-98283b387a3f" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-70a8-986c-1ed15ec4677e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-70a8-986c-1ed15ec4677e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-70a8-986c-1ed15ec4677e" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-70a8-986c-1ed15ec4677e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-72c8-989c-2ee87be992a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-70a8-986c-1ed15ec4677e" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-72c8-989c-2ee87be992a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GeographicConcentrationRiskMember_019b0f52-85f7-7f42-9f6a-ca76519bd23c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GeographicConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-72c8-989c-2ee87be992a8" xlink:to="loc_us-gaap_GeographicConcentrationRiskMember_019b0f52-85f7-7f42-9f6a-ca76519bd23c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-72b0-ad07-673019e5240e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7a58-9c59-98283b387a3f" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-72b0-ad07-673019e5240e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-72b0-ad07-673019e5240e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-72b0-ad07-673019e5240e" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-72b0-ad07-673019e5240e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-7728-8520-ade84fe90a90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-72b0-ad07-673019e5240e" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-7728-8520-ade84fe90a90" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_019b0f52-85f7-74d5-a8fc-0542fc82e6a8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-7728-8520-ade84fe90a90" xlink:to="loc_us-gaap_SalesRevenueNetMember_019b0f52-85f7-74d5-a8fc-0542fc82e6a8" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019b0f52-85f7-705e-8722-e9ac10f1242e" 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_DisaggregationOfRevenueLineItems_019b0f52-85f7-7431-819f-a21492b0b750" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019b0f52-85f7-705e-8722-e9ac10f1242e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f7-7d93-a27a-7684b346d03c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-7431-819f-a21492b0b750" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f7-7d93-a27a-7684b346d03c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/RevenueNetRevenuebyCustomerTypeDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#RevenueNetRevenuebyCustomerTypeDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/RevenueNetRevenuebyCustomerTypeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-7a2f-b603-89b9315639c1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7960-911f-67d115a8619f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-7a2f-b603-89b9315639c1" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7960-911f-67d115a8619f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019b0f52-85f7-7aa6-a7c2-54fda4c7ca6e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerSalesChannelAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7960-911f-67d115a8619f" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019b0f52-85f7-7aa6-a7c2-54fda4c7ca6e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019b0f52-85f7-7aa6-a7c2-54fda4c7ca6e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019b0f52-85f7-7aa6-a7c2-54fda4c7ca6e" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019b0f52-85f7-7aa6-a7c2-54fda4c7ca6e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019b0f52-85f7-7083-97e4-defe1eb959c6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractWithCustomerSalesChannelDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelAxis_019b0f52-85f7-7aa6-a7c2-54fda4c7ca6e" xlink:to="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019b0f52-85f7-7083-97e4-defe1eb959c6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesChannelDirectlyToConsumerMember_019b0f52-85f7-7d12-b5b0-4a6bc7d1c366" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesChannelDirectlyToConsumerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019b0f52-85f7-7083-97e4-defe1eb959c6" xlink:to="loc_us-gaap_SalesChannelDirectlyToConsumerMember_019b0f52-85f7-7d12-b5b0-4a6bc7d1c366" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesChannelThroughIntermediaryMember_019b0f52-85f7-7449-9d1a-029bbf168f5e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesChannelThroughIntermediaryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractWithCustomerSalesChannelDomain_019b0f52-85f7-7083-97e4-defe1eb959c6" xlink:to="loc_us-gaap_SalesChannelThroughIntermediaryMember_019b0f52-85f7-7449-9d1a-029bbf168f5e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-7370-8834-123b27fa087a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7960-911f-67d115a8619f" xlink:to="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-7370-8834-123b27fa087a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7370-8834-123b27fa087a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-7370-8834-123b27fa087a" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7370-8834-123b27fa087a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7057-8f7f-57abb455704b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByTypeAxis_019b0f52-85f7-7370-8834-123b27fa087a" xlink:to="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7057-8f7f-57abb455704b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CustomerConcentrationRiskMember_019b0f52-85f7-7e5a-8b2d-06f61315feec" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CustomerConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskTypeDomain_019b0f52-85f7-7057-8f7f-57abb455704b" xlink:to="loc_us-gaap_CustomerConcentrationRiskMember_019b0f52-85f7-7e5a-8b2d-06f61315feec" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-79f5-a733-0f5fbdcb8b67" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskByBenchmarkAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_019b0f52-85f7-7960-911f-67d115a8619f" xlink:to="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-79f5-a733-0f5fbdcb8b67" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-79f5-a733-0f5fbdcb8b67_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-79f5-a733-0f5fbdcb8b67" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-79f5-a733-0f5fbdcb8b67_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-72af-b74f-b6ce8acef1b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskBenchmarkDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ConcentrationRiskByBenchmarkAxis_019b0f52-85f7-79f5-a733-0f5fbdcb8b67" xlink:to="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-72af-b74f-b6ce8acef1b0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SalesRevenueNetMember_019b0f52-85f7-780d-8f9f-6230fd2b1e36" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SalesRevenueNetMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ConcentrationRiskBenchmarkDomain_019b0f52-85f7-72af-b74f-b6ce8acef1b0" xlink:to="loc_us-gaap_SalesRevenueNetMember_019b0f52-85f7-780d-8f9f-6230fd2b1e36" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019b0f52-85f7-7a78-b71d-04d27dbc3bac" 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_DisaggregationOfRevenueLineItems_019b0f52-85f7-7a2f-b603-89b9315639c1" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019b0f52-85f7-7a78-b71d-04d27dbc3bac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f7-7e8b-a293-358a088c05ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ConcentrationRiskPercentage1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019b0f52-85f7-7a2f-b603-89b9315639c1" xlink:to="loc_us-gaap_ConcentrationRiskPercentage1_019b0f52-85f7-7e8b-a293-358a088c05ce" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/RevenueCustomerWarrantDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#RevenueCustomerWarrantDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/RevenueCustomerWarrantDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisaggregationOfRevenueLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_019c9081-f9f0-79fc-aed9-0ef2e83c7b4d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_019c9081-f9f0-79fc-aed9-0ef2e83c7b4d" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019c9081-f9f0-7193-a5dd-1e41ef25d33d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_019c9081-f9f0-79fc-aed9-0ef2e83c7b4d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019c9081-f9f0-7193-a5dd-1e41ef25d33d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9081-f9f0-7193-a5dd-1e41ef25d33d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019c9081-f9f0-7193-a5dd-1e41ef25d33d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9081-f9f0-7193-a5dd-1e41ef25d33d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9081-f9f0-72d6-8f54-d896082a9c50" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019c9081-f9f0-7193-a5dd-1e41ef25d33d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9081-f9f0-72d6-8f54-d896082a9c50" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2025WarrantSharesMember_019c9081-f9f0-705c-8df6-2449b1b6a026" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2025WarrantSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9081-f9f0-72d6-8f54-d896082a9c50" xlink:to="loc_mrvl_Fiscal2025WarrantSharesMember_019c9081-f9f0-705c-8df6-2449b1b6a026" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2026WarrantSharesMember_019c9081-f9f0-7083-9683-cc49d3495dea" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2026WarrantSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9081-f9f0-72d6-8f54-d896082a9c50" xlink:to="loc_mrvl_Fiscal2026WarrantSharesMember_019c9081-f9f0-7083-9683-cc49d3495dea" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019c9081-f9f0-7b13-bbf2-14ee9699764c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019c9081-f9f0-7b13-bbf2-14ee9699764c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019c9081-f9f0-7ae3-933e-a01ddad61661" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019c9081-f9f0-7ae3-933e-a01ddad61661" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019c9081-f9f0-7ed5-bf64-d09358b11f28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019c9081-f9f0-7ed5-bf64-d09358b11f28" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_WarrantsAndRightsOutstandingVestingTerm_019c9081-f9f0-75c0-ad45-8a2309449875" xlink:href="mrvl-20260131.xsd#mrvl_WarrantsAndRightsOutstandingVestingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:to="loc_mrvl_WarrantsAndRightsOutstandingVestingTerm_019c9081-f9f0-75c0-ad45-8a2309449875" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ClassOfWarrantOrRightGrantDateFairValue_019c9081-f9f0-76d1-8601-1af8e75de7fb" xlink:href="mrvl-20260131.xsd#mrvl_ClassOfWarrantOrRightGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:to="loc_mrvl_ClassOfWarrantOrRightGrantDateFairValue_019c9081-f9f0-76d1-8601-1af8e75de7fb" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstanding_019c9081-f9f0-7b5d-b0a5-b7c7bfa63a96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantsAndRightsOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:to="loc_us-gaap_WarrantsAndRightsOutstanding_019c9081-f9f0-7b5d-b0a5-b7c7bfa63a96" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ClassOfWarrantOrRightSharesVested_019c9081-f9f0-7ba8-a943-c7bdccec4ab5" xlink:href="mrvl-20260131.xsd#mrvl_ClassOfWarrantOrRightSharesVested"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_019c9081-f9f0-7e84-a539-c85def4209be" xlink:to="loc_mrvl_ClassOfWarrantOrRightSharesVested_019c9081-f9f0-7ba8-a943-c7bdccec4ab5" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/RestructuringScheduleofRestructuringRelatedChargesDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#RestructuringScheduleofRestructuringRelatedChargesDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/RestructuringScheduleofRestructuringRelatedChargesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7389-9464-df83ab20ed02" 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_019b0f52-85f7-7f05-919c-d1c7715a9172" 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_019b0f52-85f7-7389-9464-df83ab20ed02" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019b0f52-85f7-7f05-919c-d1c7715a9172" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_019b0f52-85f7-7df9-a38b-343b78931f37" 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_019b0f52-85f7-7f05-919c-d1c7715a9172" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_019b0f52-85f7-7df9-a38b-343b78931f37" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-85f7-7df9-a38b-343b78931f37_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_019b0f52-85f7-7df9-a38b-343b78931f37" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-85f7-7df9-a38b-343b78931f37_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-85f7-783b-9806-b5d1b438f254" 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_019b0f52-85f7-7df9-a38b-343b78931f37" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-85f7-783b-9806-b5d1b438f254" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_019b0f52-85f7-719d-a4b4-f2a96ca37eac" 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_019b0f52-85f7-783b-9806-b5d1b438f254" xlink:to="loc_us-gaap_CostOfSalesMember_019b0f52-85f7-719d-a4b4-f2a96ca37eac" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenseMember_019b0f52-85f7-73d7-91e9-867239e08b0c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-85f7-783b-9806-b5d1b438f254" xlink:to="loc_us-gaap_OperatingExpenseMember_019b0f52-85f7-73d7-91e9-867239e08b0c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019b0f52-85f7-7dcc-98a8-3e4b9e612462" 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_019b0f52-85f7-7389-9464-df83ab20ed02" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019b0f52-85f7-7dcc-98a8-3e4b9e612462" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/RestructuringStatementsofOperationsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#RestructuringStatementsofOperationsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/RestructuringStatementsofOperationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7145-bdb9-0bfeda30d72b" 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_019b0f52-85f7-7437-8ae7-3f0f172048b5" 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_019b0f52-85f7-7145-bdb9-0bfeda30d72b" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019b0f52-85f7-7437-8ae7-3f0f172048b5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByAssetClassAxis_019b0f52-85f7-7a3c-80d0-80d223465e85" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByAssetClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019b0f52-85f7-7437-8ae7-3f0f172048b5" xlink:to="loc_us-gaap_FairValueByAssetClassAxis_019b0f52-85f7-7a3c-80d0-80d223465e85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7a3c-80d0-80d223465e85_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_019b0f52-85f7-7a3c-80d0-80d223465e85" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7a3c-80d0-80d223465e85_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7c65-8c75-c48fb8365443" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByAssetClassAxis_019b0f52-85f7-7a3c-80d0-80d223465e85" xlink:to="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7c65-8c75-c48fb8365443" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_AcquiredIntangibleAssetsMember_019b0f52-85f7-7a0b-8c58-c06bc3bf53c5" xlink:href="mrvl-20260131.xsd#mrvl_AcquiredIntangibleAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7c65-8c75-c48fb8365443" xlink:to="loc_mrvl_AcquiredIntangibleAssetsMember_019b0f52-85f7-7a0b-8c58-c06bc3bf53c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntellectualPropertyMember_019b0f52-85f7-7531-bac6-ac35e6bb12e2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntellectualPropertyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7c65-8c75-c48fb8365443" xlink:to="loc_us-gaap_IntellectualPropertyMember_019b0f52-85f7-7531-bac6-ac35e6bb12e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoriesMember_019b0f52-85f7-76df-82bc-1b3137dbe00f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7c65-8c75-c48fb8365443" xlink:to="loc_us-gaap_InventoriesMember_019b0f52-85f7-76df-82bc-1b3137dbe00f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentMember_019b0f52-85f7-7fdc-abea-dfe9ccc5a37e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7c65-8c75-c48fb8365443" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentMember_019b0f52-85f7-7fdc-abea-dfe9ccc5a37e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncurrentAssetsMember_019b0f52-85f7-7841-be02-50a471a756f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherNoncurrentAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_019b0f52-85f7-7c65-8c75-c48fb8365443" xlink:to="loc_us-gaap_OtherNoncurrentAssetsMember_019b0f52-85f7-7841-be02-50a471a756f2" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_019b0f52-85f7-74eb-9395-03e5a8950e0e" 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_019b0f52-85f7-7437-8ae7-3f0f172048b5" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_019b0f52-85f7-74eb-9395-03e5a8950e0e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-74eb-9395-03e5a8950e0e_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_019b0f52-85f7-74eb-9395-03e5a8950e0e" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-74eb-9395-03e5a8950e0e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-7633-a28e-df04e48128dd" 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_019b0f52-85f7-74eb-9395-03e5a8950e0e" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-7633-a28e-df04e48128dd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractTerminationMember_019b0f52-85f7-7c2a-a321-2f29a31f836b" 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_019b0f52-85f7-7633-a28e-df04e48128dd" xlink:to="loc_us-gaap_ContractTerminationMember_019b0f52-85f7-7c2a-a321-2f29a31f836b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeveranceCosts1_019b0f52-85f7-7382-971f-4da8e11ac428" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SeveranceCosts1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7145-bdb9-0bfeda30d72b" xlink:to="loc_us-gaap_SeveranceCosts1_019b0f52-85f7-7382-971f-4da8e11ac428" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetImpairmentCharges_019b0f52-85f7-77e9-8249-e722f21d445b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetImpairmentCharges"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7145-bdb9-0bfeda30d72b" xlink:to="loc_us-gaap_AssetImpairmentCharges_019b0f52-85f7-77e9-8249-e722f21d445b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019b0f52-85f7-766e-993d-b883b2ea147d" 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_019b0f52-85f7-7145-bdb9-0bfeda30d72b" xlink:to="loc_us-gaap_RestructuringCharges_019b0f52-85f7-766e-993d-b883b2ea147d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringCosts_019b0f52-85f7-7b1a-aeec-92d097ff6546" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherRestructuringCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7145-bdb9-0bfeda30d72b" xlink:to="loc_us-gaap_OtherRestructuringCosts_019b0f52-85f7-7b1a-aeec-92d097ff6546" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019b0f52-85f7-7b1d-b34d-3c7265675a25" 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_019b0f52-85f7-7145-bdb9-0bfeda30d72b" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019b0f52-85f7-7b1d-b34d-3c7265675a25" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/RestructuringNarrativeDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#RestructuringNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/RestructuringNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7424-853d-3d8ae34b6280" 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_019b0f52-85f7-78e8-afdc-b273607b9deb" 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_019b0f52-85f7-7424-853d-3d8ae34b6280" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019b0f52-85f7-78e8-afdc-b273607b9deb" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_019b0f52-85f7-7fbf-a208-4558a09485e2" 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_019b0f52-85f7-78e8-afdc-b273607b9deb" xlink:to="loc_us-gaap_RestructuringPlanAxis_019b0f52-85f7-7fbf-a208-4558a09485e2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-7fbf-a208-4558a09485e2_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_019b0f52-85f7-7fbf-a208-4558a09485e2" xlink:to="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-7fbf-a208-4558a09485e2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-7fa0-9733-915feb878b87" 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_019b0f52-85f7-7fbf-a208-4558a09485e2" xlink:to="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-7fa0-9733-915feb878b87" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2025PlanMember_019b0f52-85f7-74f0-b57f-0a15487d5c35" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2025PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-7fa0-9733-915feb878b87" xlink:to="loc_mrvl_Fiscal2025PlanMember_019b0f52-85f7-74f0-b57f-0a15487d5c35" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2024PlanMember_019b0f52-85f7-7f39-af91-a1e736937975" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2024PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-7fa0-9733-915feb878b87" xlink:to="loc_mrvl_Fiscal2024PlanMember_019b0f52-85f7-7f39-af91-a1e736937975" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7914-b621-3408afbff10f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019b0f52-85f7-78e8-afdc-b273607b9deb" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7914-b621-3408afbff10f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7914-b621-3408afbff10f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7914-b621-3408afbff10f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7914-b621-3408afbff10f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7d1b-b6a8-d90d905a7af0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7914-b621-3408afbff10f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7d1b-b6a8-d90d905a7af0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntellectualPropertyMember_019b0f52-85f7-7318-bf3e-069993681b43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntellectualPropertyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7d1b-b6a8-d90d905a7af0" xlink:to="loc_us-gaap_IntellectualPropertyMember_019b0f52-85f7-7318-bf3e-069993681b43" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_019b0f52-85f7-78cc-89e4-a59442c2d0b0" 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_019b0f52-85f7-78e8-afdc-b273607b9deb" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_019b0f52-85f7-78cc-89e4-a59442c2d0b0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-78cc-89e4-a59442c2d0b0_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_019b0f52-85f7-78cc-89e4-a59442c2d0b0" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-78cc-89e4-a59442c2d0b0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-74a1-ba5d-778c78734f26" 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_019b0f52-85f7-78cc-89e4-a59442c2d0b0" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-74a1-ba5d-778c78734f26" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractTerminationMember_019b0f52-85f7-7698-b22b-17712f6e3559" 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_019b0f52-85f7-74a1-ba5d-778c78734f26" xlink:to="loc_us-gaap_ContractTerminationMember_019b0f52-85f7-7698-b22b-17712f6e3559" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationAxis_019b0f52-85f7-75fd-aba4-d157a1b63556" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019b0f52-85f7-78e8-afdc-b273607b9deb" xlink:to="loc_us-gaap_BalanceSheetLocationAxis_019b0f52-85f7-75fd-aba4-d157a1b63556" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_019b0f52-85f7-75fd-aba4-d157a1b63556_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_019b0f52-85f7-75fd-aba4-d157a1b63556" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_019b0f52-85f7-75fd-aba4-d157a1b63556_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain_019b0f52-85f7-7bfe-b2e3-4888ec4e8d2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BalanceSheetLocationAxis_019b0f52-85f7-75fd-aba4-d157a1b63556" xlink:to="loc_us-gaap_BalanceSheetLocationDomain_019b0f52-85f7-7bfe-b2e3-4888ec4e8d2c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesMember_019b0f52-85f7-7e54-acfa-33fae7b0d864" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_019b0f52-85f7-7bfe-b2e3-4888ec4e8d2c" xlink:to="loc_us-gaap_AccruedLiabilitiesMember_019b0f52-85f7-7e54-acfa-33fae7b0d864" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableMember_019b0f52-85f7-772d-b435-54c903ac1b98" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccountsPayableMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BalanceSheetLocationDomain_019b0f52-85f7-7bfe-b2e3-4888ec4e8d2c" xlink:to="loc_us-gaap_AccountsPayableMember_019b0f52-85f7-772d-b435-54c903ac1b98" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019b0f52-85f7-7d02-ae3a-ac4631bd504f" 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_019b0f52-85f7-7424-853d-3d8ae34b6280" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019b0f52-85f7-7d02-ae3a-ac4631bd504f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentIntangibleAssetStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_019b5140-b96f-7f62-9db3-b0516a3a4b04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ImpairmentIntangibleAssetStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7424-853d-3d8ae34b6280" xlink:to="loc_us-gaap_ImpairmentIntangibleAssetStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_019b5140-b96f-7f62-9db3-b0516a3a4b04" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill_019b0f52-85f7-744f-953c-9d65869aef1d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7424-853d-3d8ae34b6280" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsExcludingGoodwill_019b0f52-85f7-744f-953c-9d65869aef1d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019b0f52-85f7-72a3-9767-a6128d74a377" 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_019b0f52-85f7-7424-853d-3d8ae34b6280" xlink:to="loc_us-gaap_RestructuringCharges_019b0f52-85f7-72a3-9767-a6128d74a377" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveCurrent_019b0f52-85f7-77f7-a34b-6980c6cfe158" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserveCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-7424-853d-3d8ae34b6280" xlink:to="loc_us-gaap_RestructuringReserveCurrent_019b0f52-85f7-77f7-a34b-6980c6cfe158" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/RestructuringReconciliationofRestructuringLiabilityDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#RestructuringReconciliationofRestructuringLiabilityDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/RestructuringReconciliationofRestructuringLiabilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-72e3-8623-fb4ae2223b5d" 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_019b0f52-85f7-76f0-83e5-719cc0e9345e" 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_019b0f52-85f7-72e3-8623-fb4ae2223b5d" xlink:to="loc_us-gaap_ScheduleOfRestructuringAndRelatedCostsTable_019b0f52-85f7-76f0-83e5-719cc0e9345e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanAxis_019b0f52-85f7-759e-b025-232e9ed4b2d0" 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_019b0f52-85f7-76f0-83e5-719cc0e9345e" xlink:to="loc_us-gaap_RestructuringPlanAxis_019b0f52-85f7-759e-b025-232e9ed4b2d0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-759e-b025-232e9ed4b2d0_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_019b0f52-85f7-759e-b025-232e9ed4b2d0" xlink:to="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-759e-b025-232e9ed4b2d0_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-74ea-a424-7ceffbc7c1a8" 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_019b0f52-85f7-759e-b025-232e9ed4b2d0" xlink:to="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-74ea-a424-7ceffbc7c1a8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_PriorRestructuringMember_019b0f52-85f7-7b1a-b23c-5e2d0aa0e5dc" xlink:href="mrvl-20260131.xsd#mrvl_PriorRestructuringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-74ea-a424-7ceffbc7c1a8" xlink:to="loc_mrvl_PriorRestructuringMember_019b0f52-85f7-7b1a-b23c-5e2d0aa0e5dc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2024PlanMember_019cc386-50f3-785f-b541-e0d46f80c0db" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2024PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-74ea-a424-7ceffbc7c1a8" xlink:to="loc_mrvl_Fiscal2024PlanMember_019cc386-50f3-785f-b541-e0d46f80c0db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2025PlanMember_019cc386-50f3-731f-9793-5922fe262c57" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2025PlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringPlanDomain_019b0f52-85f7-74ea-a424-7ceffbc7c1a8" xlink:to="loc_mrvl_Fiscal2025PlanMember_019cc386-50f3-731f-9793-5922fe262c57" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostAndReserveAxis_019b0f52-85f7-7a00-97ed-e4f3efd1e607" 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_019b0f52-85f7-76f0-83e5-719cc0e9345e" xlink:to="loc_us-gaap_RestructuringCostAndReserveAxis_019b0f52-85f7-7a00-97ed-e4f3efd1e607" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-7a00-97ed-e4f3efd1e607_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_019b0f52-85f7-7a00-97ed-e4f3efd1e607" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-7a00-97ed-e4f3efd1e607_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-7a97-872b-037e197ef55b" 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_019b0f52-85f7-7a00-97ed-e4f3efd1e607" xlink:to="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-7a97-872b-037e197ef55b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeSeveranceMember_019b0f52-85f7-7dfb-9421-8bf69aee502d" 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_019b0f52-85f7-7a97-872b-037e197ef55b" xlink:to="loc_us-gaap_EmployeeSeveranceMember_019b0f52-85f7-7dfb-9421-8bf69aee502d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherRestructuringMember_019b0f52-85f7-7537-8f86-eda3a4d9909f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherRestructuringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TypeOfRestructuringDomain_019b0f52-85f7-7a97-872b-037e197ef55b" xlink:to="loc_us-gaap_OtherRestructuringMember_019b0f52-85f7-7537-8f86-eda3a4d9909f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_019b0f52-85f7-791e-8223-ac67a3655f2a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-72e3-8623-fb4ae2223b5d" xlink:to="loc_us-gaap_RestructuringIncurredCostStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_019b0f52-85f7-791e-8223-ac67a3655f2a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveRollForward_019b0f52-85f7-73e5-b14e-e6216fc91e00" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserveRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-72e3-8623-fb4ae2223b5d" xlink:to="loc_us-gaap_RestructuringReserveRollForward_019b0f52-85f7-73e5-b14e-e6216fc91e00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_019b0f52-85f7-7d2f-bac9-d5a79496f8ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserve"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_019b0f52-85f7-73e5-b14e-e6216fc91e00" xlink:to="loc_us-gaap_RestructuringReserve_019b0f52-85f7-7d2f-bac9-d5a79496f8ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCharges_019b0f52-85f7-786b-a44c-ba52b45a0c27" 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_RestructuringReserveRollForward_019b0f52-85f7-73e5-b14e-e6216fc91e00" xlink:to="loc_us-gaap_RestructuringCharges_019b0f52-85f7-786b-a44c-ba52b45a0c27" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRestructuring_019b0f52-85f7-797e-8357-510d8f49ca5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsForRestructuring"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_019b0f52-85f7-73e5-b14e-e6216fc91e00" xlink:to="loc_us-gaap_PaymentsForRestructuring_019b0f52-85f7-797e-8357-510d8f49ca5b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_RestructuringReserveNonCashItems_019b0f52-85f7-71ca-8162-06d44344963f" xlink:href="mrvl-20260131.xsd#mrvl_RestructuringReserveNonCashItems"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringReserveRollForward_019b0f52-85f7-73e5-b14e-e6216fc91e00" xlink:to="loc_mrvl_RestructuringReserveNonCashItems_019b0f52-85f7-71ca-8162-06d44344963f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserve_019b0f52-85f7-762e-88d1-3622f32de2d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserve"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveNoncurrent_019b0f52-85f7-764a-b24d-b5136bc0e3d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserveNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-72e3-8623-fb4ae2223b5d" xlink:to="loc_us-gaap_RestructuringReserveNoncurrent_019b0f52-85f7-764a-b24d-b5136bc0e3d5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringReserveCurrent_019b0f52-85f7-7fa7-8e47-4d851c2b3cad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringReserveCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-72e3-8623-fb4ae2223b5d" xlink:to="loc_us-gaap_RestructuringReserveCurrent_019b0f52-85f7-7fa7-8e47-4d851c2b3cad" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_AssetImpairmentChargesAndOtherNonCashRestructuringCosts_019b0f52-85f7-733d-9de9-7102d24a2dd1" xlink:href="mrvl-20260131.xsd#mrvl_AssetImpairmentChargesAndOtherNonCashRestructuringCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-72e3-8623-fb4ae2223b5d" xlink:to="loc_mrvl_AssetImpairmentChargesAndOtherNonCashRestructuringCosts_019b0f52-85f7-733d-9de9-7102d24a2dd1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_RestructuringGain_019c9430-d545-70fa-983c-b6cf66cc789e" xlink:href="mrvl-20260131.xsd#mrvl_RestructuringGain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestructuringCostAndReserveLineItems_019b0f52-85f7-72e3-8623-fb4ae2223b5d" xlink:to="loc_mrvl_RestructuringGain_019c9430-d545-70fa-983c-b6cf66cc789e" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/GoodwillandAcquiredIntangibleAssetsNetNarrativeDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#GoodwillandAcquiredIntangibleAssetsNetNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/GoodwillandAcquiredIntangibleAssetsNetNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0f52-85f7-79a0-9ed5-3e99780833dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0f52-85f7-79a0-9ed5-3e99780833dd" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationAxis_019b5074-cced-7762-a52d-7ba84a6ad93d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupClassificationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0f52-85f7-79a0-9ed5-3e99780833dd" xlink:to="loc_us-gaap_DisposalGroupClassificationAxis_019b5074-cced-7762-a52d-7ba84a6ad93d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_019b5074-cced-7762-a52d-7ba84a6ad93d_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_019b5074-cced-7762-a52d-7ba84a6ad93d" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_019b5074-cced-7762-a52d-7ba84a6ad93d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupClassificationDomain_019b5074-cced-70f6-b649-2cde52f228a7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupClassificationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_DisposalGroupClassificationAxis_019b5074-cced-7762-a52d-7ba84a6ad93d" xlink:to="loc_us-gaap_DisposalGroupClassificationDomain_019b5074-cced-70f6-b649-2cde52f228a7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_019b5074-cced-7a4f-9733-84cf3e9c62df" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupClassificationDomain_019b5074-cced-70f6-b649-2cde52f228a7" xlink:to="loc_us-gaap_DisposalGroupHeldforsaleNotDiscontinuedOperationsMember_019b5074-cced-7a4f-9733-84cf3e9c62df" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019b5074-cced-7cb9-9a0e-e01c8a8d5864" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0f52-85f7-79a0-9ed5-3e99780833dd" xlink:to="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019b5074-cced-7cb9-9a0e-e01c8a8d5864" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019b5074-cced-7cb9-9a0e-e01c8a8d5864_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019b5074-cced-7cb9-9a0e-e01c8a8d5864" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019b5074-cced-7cb9-9a0e-e01c8a8d5864_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019b5074-cced-787a-9540-a663a07b6ac7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis_019b5074-cced-7cb9-9a0e-e01c8a8d5864" xlink:to="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019b5074-cced-787a-9540-a663a07b6ac7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MarvellTechnologysAutomotiveEthernetBusinessMember_019b5074-cced-77ea-9ca3-95ed355e62cb" xlink:href="mrvl-20260131.xsd#mrvl_MarvellTechnologysAutomotiveEthernetBusinessMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisposalGroupsIncludingDiscontinuedOperationsNameDomain_019b5074-cced-787a-9540-a663a07b6ac7" xlink:to="loc_mrvl_MarvellTechnologysAutomotiveEthernetBusinessMember_019b5074-cced-77ea-9ca3-95ed355e62cb" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b5077-1cba-7bf7-afda-c065a01c859c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfFiniteLivedIntangibleAssetsTable_019b0f52-85f7-79a0-9ed5-3e99780833dd" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b5077-1cba-7bf7-afda-c065a01c859c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b5077-1cba-7bf7-afda-c065a01c859c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b5077-1cba-7bf7-afda-c065a01c859c" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b5077-1cba-7bf7-afda-c065a01c859c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b5077-1cba-7973-a007-4ca22382a889" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b5077-1cba-7bf7-afda-c065a01c859c" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b5077-1cba-7973-a007-4ca22382a889" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_019b5077-1cba-7317-ae72-763830f98857" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b5077-1cba-7973-a007-4ca22382a889" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_019b5077-1cba-7317-ae72-763830f98857" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InProcessResearchAndDevelopmentMember_019b5078-d8b6-7f6c-9591-0e7f921bae63" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InProcessResearchAndDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b5077-1cba-7973-a007-4ca22382a889" xlink:to="loc_us-gaap_InProcessResearchAndDevelopmentMember_019b5078-d8b6-7f6c-9591-0e7f921bae63" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_019b5074-5bfd-71b2-bf1d-b387e5e23eec" 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_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_Goodwill_019b5074-5bfd-71b2-bf1d-b387e5e23eec" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1_019b5074-cced-7c90-96e7-80a8708e69b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwill1_019b5074-cced-7c90-96e7-80a8708e69b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments_019b5075-5f07-75ed-97e5-7f7c61cb457d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfOperatingSegments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_NumberOfOperatingSegments_019b5075-5f07-75ed-97e5-7f7c61cb457d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfReportingUnits_019b5075-5f07-747c-975c-3d60222cf929" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NumberOfReportingUnits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_NumberOfReportingUnits_019b5075-5f07-747c-975c-3d60222cf929" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_019b5076-2cc0-7e0d-bfbf-d2a5f51d75d1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_019b5076-2cc0-7e0d-bfbf-d2a5f51d75d1" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_019b5077-1cba-7e6b-9f3e-4e09e805f06e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ImpairmentOfIntangibleAssetsFinitelived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_ImpairmentOfIntangibleAssetsFinitelived_019b5077-1cba-7e6b-9f3e-4e09e805f06e" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag_019b5077-1cba-7ff9-980d-aa4b5ba8c8b8" xlink:href="mrvl-20260131.xsd#mrvl_ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_mrvl_ImpairmentOfIntangibleAssetFiniteLivedStatementOfIncomeOrComprehensiveIncomeExtensibleEnumerationNotDisclosedFlag_019b5077-1cba-7ff9-980d-aa4b5ba8c8b8" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019b5078-d8b6-7612-8406-8201c4e742dd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019b5078-d8b6-7612-8406-8201c4e742dd" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_019b5079-6fbf-704e-9a35-5f992891a28c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-77a2-8951-4741fb8d7cdb" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_019b5079-6fbf-704e-9a35-5f992891a28c" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/GoodwillandAcquiredIntangibleAssetsNetNetCarryingAmountsandWeightedAverageAmortizationPeriodDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#GoodwillandAcquiredIntangibleAssetsNetNetCarryingAmountsandWeightedAverageAmortizationPeriodDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/GoodwillandAcquiredIntangibleAssetsNetNetCarryingAmountsandWeightedAverageAmortizationPeriodDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019b0f52-85f7-7e1a-9a32-871eaf5dee7e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:to="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019b0f52-85f7-7e1a-9a32-871eaf5dee7e" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7e91-9b0c-746ea9df27ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019b0f52-85f7-7e1a-9a32-871eaf5dee7e" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7e91-9b0c-746ea9df27ad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7e91-9b0c-746ea9df27ad_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7e91-9b0c-746ea9df27ad" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7e91-9b0c-746ea9df27ad_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7539-ba81-83270c02508f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7e91-9b0c-746ea9df27ad" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7539-ba81-83270c02508f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DevelopedTechnologyRightsMember_019b0f52-85f7-788e-8a6c-125523837b82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DevelopedTechnologyRightsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7539-ba81-83270c02508f" xlink:to="loc_us-gaap_DevelopedTechnologyRightsMember_019b0f52-85f7-788e-8a6c-125523837b82" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_CustomerContractsAndRelationshipsMember_019b0f52-85f7-712b-b036-e0893eb6a432" xlink:href="mrvl-20260131.xsd#mrvl_CustomerContractsAndRelationshipsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7539-ba81-83270c02508f" xlink:to="loc_mrvl_CustomerContractsAndRelationshipsMember_019b0f52-85f7-712b-b036-e0893eb6a432" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TradeNamesMember_019b0f52-85f7-7eaa-a256-3458479b7504" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TradeNamesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7539-ba81-83270c02508f" xlink:to="loc_us-gaap_TradeNamesMember_019b0f52-85f7-7eaa-a256-3458479b7504" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7351-a5ae-820f52b1f509" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAcquiredFiniteLivedIntangibleAssetByMajorClassTable_019b0f52-85f7-7e1a-9a32-871eaf5dee7e" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7351-a5ae-820f52b1f509" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7351-a5ae-820f52b1f509_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7351-a5ae-820f52b1f509" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-7351-a5ae-820f52b1f509_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-746c-92a3-83ee72618f46" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-85f7-7351-a5ae-820f52b1f509" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-746c-92a3-83ee72618f46" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InProcessResearchAndDevelopmentMember_019b0f52-85f7-7c00-9e96-a6215716b0d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InProcessResearchAndDevelopmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IndefiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-85f7-746c-92a3-83ee72618f46" xlink:to="loc_us-gaap_InProcessResearchAndDevelopmentMember_019b0f52-85f7-7c00-9e96-a6215716b0d3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019b0f52-85f7-7564-91de-2365b9d8f37d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_019b0f52-85f7-7564-91de-2365b9d8f37d" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019b0f52-85f7-7b34-b916-d6e8a3375df2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_019b0f52-85f7-7b34-b916-d6e8a3375df2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019b0f52-85f7-70d0-b522-1f7025dd23c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsNet_019b0f52-85f7-70d0-b522-1f7025dd23c2" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_019b0f52-85f7-7a78-be8b-0e4c96f9db09" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:to="loc_us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill_019b0f52-85f7-7a78-be8b-0e4c96f9db09" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_019b0f52-85f7-7cf8-9ae1-db6d91b142b7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsGrossExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:to="loc_us-gaap_IntangibleAssetsGrossExcludingGoodwill_019b0f52-85f7-7cf8-9ae1-db6d91b142b7" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019b0f52-85f7-76e1-a310-d07698cad709" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IntangibleAssetsNetExcludingGoodwill"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:to="loc_us-gaap_IntangibleAssetsNetExcludingGoodwill_019b0f52-85f7-76e1-a310-d07698cad709" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019b0f52-85f7-7b3f-9fc6-d3f2581352a2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsLineItems_019b0f52-85f7-7b1a-8978-01178aaf1162" xlink:to="loc_us-gaap_AcquiredFiniteLivedIntangibleAssetsWeightedAverageUsefulLife_019b0f52-85f7-7b3f-9fc6-d3f2581352a2" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/FairValueMeasurementsFairValueAssetsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#FairValueMeasurementsFairValueAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/FairValueMeasurementsFairValueAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019b0f52-85f7-7d5d-baea-4cbf529fa84a" 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_019b0f52-85f7-7515-b8e4-74ca759264b0" 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_019b0f52-85f7-7d5d-baea-4cbf529fa84a" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019b0f52-85f7-7515-b8e4-74ca759264b0" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019b0f52-85f7-7e48-b4ac-6f859639cc29" 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_019b0f52-85f7-7515-b8e4-74ca759264b0" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019b0f52-85f7-7e48-b4ac-6f859639cc29" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019b0f52-85f7-7e48-b4ac-6f859639cc29_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_019b0f52-85f7-7e48-b4ac-6f859639cc29" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019b0f52-85f7-7e48-b4ac-6f859639cc29_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019b0f52-85f7-76e5-934e-97b748446bc5" 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_019b0f52-85f7-7e48-b4ac-6f859639cc29" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019b0f52-85f7-76e5-934e-97b748446bc5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_019b0f52-85f7-7bda-a0d6-d0184a1c4718" 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_019b0f52-85f7-76e5-934e-97b748446bc5" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_019b0f52-85f7-7bda-a0d6-d0184a1c4718" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019b0f52-85f7-7ee7-be94-0626f66f290a" 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_019b0f52-85f7-76e5-934e-97b748446bc5" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019b0f52-85f7-7ee7-be94-0626f66f290a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_019b0f52-85f7-7c08-9e8d-42abc71ffbca" 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_019b0f52-85f7-76e5-934e-97b748446bc5" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_019b0f52-85f7-7c08-9e8d-42abc71ffbca" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAxis_019b0f52-85f7-743d-a5c0-e593f0ea9394" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019b0f52-85f7-7515-b8e4-74ca759264b0" xlink:to="loc_us-gaap_CashAndCashEquivalentsAxis_019b0f52-85f7-743d-a5c0-e593f0ea9394" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019b0f52-85f7-743d-a5c0-e593f0ea9394_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_019b0f52-85f7-743d-a5c0-e593f0ea9394" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019b0f52-85f7-743d-a5c0-e593f0ea9394_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019b0f52-85f7-7573-8762-3d7a33928248" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_CashAndCashEquivalentsAxis_019b0f52-85f7-743d-a5c0-e593f0ea9394" xlink:to="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019b0f52-85f7-7573-8762-3d7a33928248" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BankTimeDepositsMember_019b0f52-85f7-779b-8c9e-8e8fe9fc3ebc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BankTimeDepositsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsMember_019b0f52-85f7-7573-8762-3d7a33928248" xlink:to="loc_us-gaap_BankTimeDepositsMember_019b0f52-85f7-779b-8c9e-8e8fe9fc3ebc" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019b945f-85c9-76ec-8b9e-c16ff84a4d43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019b0f52-85f7-7515-b8e4-74ca759264b0" xlink:to="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019b945f-85c9-76ec-8b9e-c16ff84a4d43" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019b945f-85c9-76ec-8b9e-c16ff84a4d43_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019b945f-85c9-76ec-8b9e-c16ff84a4d43" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019b945f-85c9-76ec-8b9e-c16ff84a4d43_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_019b945f-85c9-7a36-8633-897feb9a54e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementFrequencyDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis_019b945f-85c9-76ec-8b9e-c16ff84a4d43" xlink:to="loc_us-gaap_FairValueMeasurementFrequencyDomain_019b945f-85c9-7a36-8633-897feb9a54e5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_019b945f-b21b-703e-a4d1-cc4fb314fcd6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementFrequencyDomain_019b945f-85c9-7a36-8633-897feb9a54e5" xlink:to="loc_us-gaap_FairValueMeasurementsRecurringMember_019b945f-b21b-703e-a4d1-cc4fb314fcd6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis_019be4d2-07d9-7c37-873d-04c838b067f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_019b0f52-85f7-7515-b8e4-74ca759264b0" xlink:to="loc_us-gaap_FinancialInstrumentAxis_019be4d2-07d9-7c37-873d-04c838b067f6" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019be4d2-07d9-7c37-873d-04c838b067f6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019be4d2-07d9-7c37-873d-04c838b067f6" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019be4d2-07d9-7c37-873d-04c838b067f6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019be4d2-07d9-7240-aee9-011fcbdc0006" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_019be4d2-07d9-7c37-873d-04c838b067f6" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019be4d2-07d9-7240-aee9-011fcbdc0006" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeverancePayFundMember_019be4d2-f579-7d72-9120-c07be967328a" xlink:href="mrvl-20260131.xsd#mrvl_SeverancePayFundMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019be4d2-07d9-7240-aee9-011fcbdc0006" xlink:to="loc_mrvl_SeverancePayFundMember_019be4d2-f579-7d72-9120-c07be967328a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SecuritiesUnderTheNonQualifiedDeferredCompensationPlanMember_019be4d2-07d9-7e2e-b8e4-73215c4763c5" xlink:href="mrvl-20260131.xsd#mrvl_SecuritiesUnderTheNonQualifiedDeferredCompensationPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_019be4d2-07d9-7240-aee9-011fcbdc0006" xlink:to="loc_mrvl_SecuritiesUnderTheNonQualifiedDeferredCompensationPlanMember_019be4d2-07d9-7e2e-b8e4-73215c4763c5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_019b0f52-85f7-74d3-9ec2-cd1c0cd0c153" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsFairValueDisclosureAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_019b0f52-85f7-7d5d-baea-4cbf529fa84a" xlink:to="loc_us-gaap_AssetsFairValueDisclosureAbstract_019b0f52-85f7-74d3-9ec2-cd1c0cd0c153" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019b0f52-85f7-7155-b3cf-9d1a77295fd9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019b0f52-85f7-74d3-9ec2-cd1c0cd0c153" xlink:to="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_019b0f52-85f7-7155-b3cf-9d1a77295fd9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_019cc391-2e6b-778e-9107-fc51dd96ec42" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCurrencyContractAssetFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019b0f52-85f7-74d3-9ec2-cd1c0cd0c153" xlink:to="loc_us-gaap_ForeignCurrencyContractAssetFairValueDisclosure_019cc391-2e6b-778e-9107-fc51dd96ec42" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFVNINoncurrent_019cc390-a507-774e-b65f-1a51ba41c279" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFVNINoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019b0f52-85f7-74d3-9ec2-cd1c0cd0c153" xlink:to="loc_us-gaap_EquitySecuritiesFVNINoncurrent_019cc390-a507-774e-b65f-1a51ba41c279" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsFairValueDisclosure_019b0f52-85f7-7a5f-816f-33ad682a1033" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019b0f52-85f7-74d3-9ec2-cd1c0cd0c153" xlink:to="loc_us-gaap_OtherAssetsFairValueDisclosure_019b0f52-85f7-7a5f-816f-33ad682a1033" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_019b0f52-85f7-7c6c-84cc-3d41276947ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsFairValueDisclosure"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsFairValueDisclosureAbstract_019b0f52-85f7-74d3-9ec2-cd1c0cd0c153" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_019b0f52-85f7-7c6c-84cc-3d41276947ca" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#FairValueMeasurementsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019b0f52-85f7-711b-ac88-3ced8df510fa" 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_019b0f52-85f7-7a3c-a8c4-4fafd05fde16" 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_019b0f52-85f7-711b-ac88-3ced8df510fa" xlink:to="loc_us-gaap_FairValueByBalanceSheetGroupingTable_019b0f52-85f7-7a3c-a8c4-4fafd05fde16" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019b0f52-85f7-7d68-9c05-65ff518a69f5" 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_019b0f52-85f7-7a3c-a8c4-4fafd05fde16" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_019b0f52-85f7-7d68-9c05-65ff518a69f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019b0f52-85f7-7d68-9c05-65ff518a69f5_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_019b0f52-85f7-7d68-9c05-65ff518a69f5" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019b0f52-85f7-7d68-9c05-65ff518a69f5_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019b0f52-85f7-7987-b949-efe6d90edfc0" 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_019b0f52-85f7-7d68-9c05-65ff518a69f5" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_019b0f52-85f7-7987-b949-efe6d90edfc0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_019b0f52-85f7-7324-87d0-b6fec003a5b2" 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_019b0f52-85f7-7987-b949-efe6d90edfc0" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_019b0f52-85f7-7324-87d0-b6fec003a5b2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019b0f52-85f7-75c7-9c28-9ab7035955e3" 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_FairValueByBalanceSheetGroupingTable_019b0f52-85f7-7a3c-a8c4-4fafd05fde16" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019b0f52-85f7-75c7-9c28-9ab7035955e3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-75c7-9c28-9ab7035955e3_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_019b0f52-85f7-75c7-9c28-9ab7035955e3" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-75c7-9c28-9ab7035955e3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-70ca-b08b-62e30d5571a0" 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_019b0f52-85f7-75c7-9c28-9ab7035955e3" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-70ca-b08b-62e30d5571a0" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019b0f52-85f7-7009-9134-3fc071b57cff" 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_019b0f52-85f7-70ca-b08b-62e30d5571a0" xlink:to="loc_us-gaap_SeniorNotesMember_019b0f52-85f7-7009-9134-3fc071b57cff" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermInvestments_019b0f52-85f7-7aeb-9741-934591317122" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLongTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019b0f52-85f7-711b-ac88-3ced8df510fa" xlink:to="loc_us-gaap_OtherLongTermInvestments_019b0f52-85f7-7aeb-9741-934591317122" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_019be4d7-1135-7dd4-83d3-d7eb9ce0319c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019b0f52-85f7-711b-ac88-3ced8df510fa" xlink:to="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_019be4d7-1135-7dd4-83d3-d7eb9ce0319c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtFairValue_019b0f52-85f7-70bc-98d2-ad5c64889a39" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems_019b0f52-85f7-711b-ac88-3ced8df510fa" xlink:to="loc_us-gaap_LongTermDebtFairValue_019b0f52-85f7-70bc-98d2-ad5c64889a39" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/DebtScheduleofOutstandingDebtDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#DebtScheduleofOutstandingDebtDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/DebtScheduleofOutstandingDebtDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" 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_019b0f52-85f7-71ae-a30a-6d19508fd910" 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_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_DebtInstrumentTable_019b0f52-85f7-71ae-a30a-6d19508fd910" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019b0f52-85f7-70b0-a1ff-988cc5d60c40" 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_019b0f52-85f7-71ae-a30a-6d19508fd910" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019b0f52-85f7-70b0-a1ff-988cc5d60c40" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-70b0-a1ff-988cc5d60c40_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_019b0f52-85f7-70b0-a1ff-988cc5d60c40" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-70b0-a1ff-988cc5d60c40_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-74a0-ace1-3d191ac23c21" 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_019b0f52-85f7-70b0-a1ff-988cc5d60c40" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-74a0-ace1-3d191ac23c21" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_TermLoanMember_019b0f52-85f7-7fe4-acb5-c467115df36c" xlink:href="mrvl-20260131.xsd#mrvl_TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019b0f52-85f7-74a0-ace1-3d191ac23c21" xlink:to="loc_mrvl_TermLoanMember_019b0f52-85f7-7fe4-acb5-c467115df36c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019b0f52-85f7-716a-b881-f045bb193779" 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_019b0f52-85f7-74a0-ace1-3d191ac23c21" xlink:to="loc_us-gaap_SeniorNotesMember_019b0f52-85f7-716a-b881-f045bb193779" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019b0f52-85f7-7ec4-ba46-58f2b9f1b46d" 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_019b0f52-85f7-71ae-a30a-6d19508fd910" xlink:to="loc_us-gaap_DebtInstrumentAxis_019b0f52-85f7-7ec4-ba46-58f2b9f1b46d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-7ec4-ba46-58f2b9f1b46d_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_019b0f52-85f7-7ec4-ba46-58f2b9f1b46d" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-7ec4-ba46-58f2b9f1b46d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" 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_019b0f52-85f7-7ec4-ba46-58f2b9f1b46d" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_FiveYearTrancheLoanMember_019b0f52-85f7-7211-ae03-88833b757e79" xlink:href="mrvl-20260131.xsd#mrvl_FiveYearTrancheLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_FiveYearTrancheLoanMember_019b0f52-85f7-7211-ae03-88833b757e79" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTGAndMTISeniorNotesDueIn2028Member_019b0f52-85f7-70a6-8428-7b59d13e52d1" xlink:href="mrvl-20260131.xsd#mrvl_MTGAndMTISeniorNotesDueIn2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_MTGAndMTISeniorNotesDueIn2028Member_019b0f52-85f7-70a6-8428-7b59d13e52d1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTG2028SeniorNotesMember_019be51a-c110-741e-b011-5f8a48adb373" xlink:href="mrvl-20260131.xsd#mrvl_MTG2028SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_MTGAndMTISeniorNotesDueIn2028Member_019b0f52-85f7-70a6-8428-7b59d13e52d1" xlink:to="loc_mrvl_MTG2028SeniorNotesMember_019be51a-c110-741e-b011-5f8a48adb373" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTI2028SeniorNotesMember_019be51a-d5dd-7647-a810-0bed2bee0ace" xlink:href="mrvl-20260131.xsd#mrvl_MTI2028SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_MTGAndMTISeniorNotesDueIn2028Member_019b0f52-85f7-70a6-8428-7b59d13e52d1" xlink:to="loc_mrvl_MTI2028SeniorNotesMember_019be51a-d5dd-7647-a810-0bed2bee0ace" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2026Member_019b0f52-85f7-76c2-96e6-cbce49a14827" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_SeniorNotesDue2026Member_019b0f52-85f7-76c2-96e6-cbce49a14827" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2028Member_019b0f52-85f7-7347-9e21-c8e9d6852753" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_SeniorNotesDue2028Member_019b0f52-85f7-7347-9e21-c8e9d6852753" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2029Member_019b0f52-85f7-75eb-82e4-004e4ac2b864" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_SeniorNotesDue2029Member_019b0f52-85f7-75eb-82e4-004e4ac2b864" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2030Member_019be51a-9487-71b4-8bdd-7e8e91af3bf4" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_SeniorNotesDue2030Member_019be51a-9487-71b4-8bdd-7e8e91af3bf4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2031Member_019b0f52-85f7-7067-8066-688aa3ec8099" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_SeniorNotesDue2031Member_019b0f52-85f7-7067-8066-688aa3ec8099" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2033Member_019b0f52-85f7-76f9-8cf0-0527b452434d" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2033Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_SeniorNotesDue2033Member_019b0f52-85f7-76f9-8cf0-0527b452434d" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2035Member_019be51a-9487-7bf5-b887-f44fcdf18d44" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2035Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019b0f52-85f7-71b2-9662-a6367588cded" xlink:to="loc_mrvl_SeniorNotesDue2035Member_019be51a-9487-7bf5-b887-f44fcdf18d44" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019b0f52-85f7-7fd4-b5fb-34228b0fe4c5" 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_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019b0f52-85f7-7fd4-b5fb-34228b0fe4c5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019be51a-9487-7818-acce-4636afcf1c6c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage_019be51a-9487-7818-acce-4636afcf1c6c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019b0f52-85f7-76b3-bae2-836bd4987903" 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_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019b0f52-85f7-76b3-bae2-836bd4987903" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFinanceCostsNet_019b0f52-85f7-7c3e-9fe6-509bc9948603" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DeferredFinanceCostsNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_DeferredFinanceCostsNet_019b0f52-85f7-7c3e-9fe6-509bc9948603" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019b0f52-85f7-7b74-8ed6-12bc95c30c5b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_LongTermDebt_019b0f52-85f7-7b74-8ed6-12bc95c30c5b" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent_019b0f52-85f7-74ab-bf1e-58ab94dd1828" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_LongTermDebtCurrent_019b0f52-85f7-74ab-bf1e-58ab94dd1828" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_019b0f52-85f7-7be9-a89d-b8b5c93c79dc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_019b0f52-85f7-7be9-a89d-b8b5c93c79dc" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtWeightedAverageInterestRate_019b0f52-85f7-70f2-9dbd-f701db15e962" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShortTermDebtWeightedAverageInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7c17-946b-212547f7c7e0" xlink:to="loc_us-gaap_ShortTermDebtWeightedAverageInterestRate_019b0f52-85f7-70f2-9dbd-f701db15e962" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/DebtTermLoansDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#DebtTermLoansDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/DebtTermLoansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7b6a-8ad3-02d3a66d2b0c" 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_019b0f52-85f7-7dec-bc85-c0135b818c9c" 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_019b0f52-85f7-7b6a-8ad3-02d3a66d2b0c" xlink:to="loc_us-gaap_DebtInstrumentTable_019b0f52-85f7-7dec-bc85-c0135b818c9c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019c472a-0a2c-7d8d-8c8a-e1a6e348a20e" 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_019b0f52-85f7-7dec-bc85-c0135b818c9c" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019c472a-0a2c-7d8d-8c8a-e1a6e348a20e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c472a-0a2c-7d8d-8c8a-e1a6e348a20e_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_019c472a-0a2c-7d8d-8c8a-e1a6e348a20e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c472a-0a2c-7d8d-8c8a-e1a6e348a20e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019c472a-0a2c-7235-96f4-91b2073cc0e1" 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_019c472a-0a2c-7d8d-8c8a-e1a6e348a20e" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019c472a-0a2c-7235-96f4-91b2073cc0e1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_TermLoanMember_019c472a-0a2c-7041-92d5-95cca7312293" xlink:href="mrvl-20260131.xsd#mrvl_TermLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LongtermDebtTypeDomain_019c472a-0a2c-7235-96f4-91b2073cc0e1" xlink:to="loc_mrvl_TermLoanMember_019c472a-0a2c-7041-92d5-95cca7312293" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019c472a-0a2c-72b3-8b97-4143367747c4" 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_019b0f52-85f7-7dec-bc85-c0135b818c9c" xlink:to="loc_us-gaap_DebtInstrumentAxis_019c472a-0a2c-72b3-8b97-4143367747c4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c472a-0a2c-72b3-8b97-4143367747c4_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_019c472a-0a2c-72b3-8b97-4143367747c4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c472a-0a2c-72b3-8b97-4143367747c4_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019c472a-0a2c-7896-af0d-5a81e9ae2954" 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_019c472a-0a2c-72b3-8b97-4143367747c4" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019c472a-0a2c-7896-af0d-5a81e9ae2954" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ThreeYearTrancheLoanMember_019c472a-0a2c-71cf-8c05-5b947e827d62" xlink:href="mrvl-20260131.xsd#mrvl_ThreeYearTrancheLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c472a-0a2c-7896-af0d-5a81e9ae2954" xlink:to="loc_mrvl_ThreeYearTrancheLoanMember_019c472a-0a2c-71cf-8c05-5b947e827d62" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_FiveYearTrancheLoanMember_019c472a-0a2c-722b-8fa5-e9157f18d8e3" xlink:href="mrvl-20260131.xsd#mrvl_FiveYearTrancheLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019c472a-0a2c-7896-af0d-5a81e9ae2954" xlink:to="loc_mrvl_FiveYearTrancheLoanMember_019c472a-0a2c-722b-8fa5-e9157f18d8e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019c472a-0a2c-745b-b5ea-787567f0f8ce" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7b6a-8ad3-02d3a66d2b0c" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019c472a-0a2c-745b-b5ea-787567f0f8ce" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019c472a-0a2c-7dcc-b87f-00e03594b78f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7b6a-8ad3-02d3a66d2b0c" xlink:to="loc_us-gaap_DebtInstrumentTerm_019c472a-0a2c-7dcc-b87f-00e03594b78f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019c472a-0a2c-7233-8ea4-0d27e3d0afb4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentBasisSpreadOnVariableRate1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7b6a-8ad3-02d3a66d2b0c" xlink:to="loc_us-gaap_DebtInstrumentBasisSpreadOnVariableRate1_019c472a-0a2c-7233-8ea4-0d27e3d0afb4" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfDebt_019c472a-0a2c-7212-820f-8a54d9607356" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-7b6a-8ad3-02d3a66d2b0c" xlink:to="loc_us-gaap_RepaymentsOfDebt_019c472a-0a2c-7212-820f-8a54d9607356" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCarryingAmount_019c472a-0a2c-70df-9c45-9871423d0f37" 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_DebtInstrumentLineItems_019b0f52-85f7-7b6a-8ad3-02d3a66d2b0c" xlink:to="loc_us-gaap_DebtInstrumentCarryingAmount_019c472a-0a2c-70df-9c45-9871423d0f37" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/DebtRevolvingCreditFacilityDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#DebtRevolvingCreditFacilityDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/DebtRevolvingCreditFacilityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityLineItems_019b0f52-85f7-7f08-a163-505019c4599c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityTable_019b0f52-85f7-7015-8d77-e1d7d5dfa6ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019b0f52-85f7-7f08-a163-505019c4599c" xlink:to="loc_us-gaap_LineOfCreditFacilityTable_019b0f52-85f7-7015-8d77-e1d7d5dfa6ae" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis_019be529-23b1-77fa-a27e-c94094115d68" 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_LineOfCreditFacilityTable_019b0f52-85f7-7015-8d77-e1d7d5dfa6ae" xlink:to="loc_us-gaap_CreditFacilityAxis_019be529-23b1-77fa-a27e-c94094115d68" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019be529-23b1-77fa-a27e-c94094115d68_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_019be529-23b1-77fa-a27e-c94094115d68" xlink:to="loc_us-gaap_CreditFacilityDomain_019be529-23b1-77fa-a27e-c94094115d68_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityDomain_019be529-23b1-7c89-9e61-35f83de5e1d8" 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_019be529-23b1-77fa-a27e-c94094115d68" xlink:to="loc_us-gaap_CreditFacilityDomain_019be529-23b1-7c89-9e61-35f83de5e1d8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember_019be529-23b1-7f8a-ba55-31ae5a87b8af" 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_019be529-23b1-7c89-9e61-35f83de5e1d8" xlink:to="loc_us-gaap_RevolvingCreditFacilityMember_019be529-23b1-7f8a-ba55-31ae5a87b8af" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019be529-23b1-7a5c-9b41-e836a1f20630" 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_LineOfCreditFacilityTable_019b0f52-85f7-7015-8d77-e1d7d5dfa6ae" xlink:to="loc_us-gaap_DebtInstrumentAxis_019be529-23b1-7a5c-9b41-e836a1f20630" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019be529-23b1-7a5c-9b41-e836a1f20630_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_019be529-23b1-7a5c-9b41-e836a1f20630" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019be529-23b1-7a5c-9b41-e836a1f20630_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019be529-23b1-729c-ad87-b6b95844b3df" 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_019be529-23b1-7a5c-9b41-e836a1f20630" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019be529-23b1-729c-ad87-b6b95844b3df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_A2025RevolvingCreditFacilityMember_019be529-23b1-781b-85b3-52a7aa1c7f7c" xlink:href="mrvl-20260131.xsd#mrvl_A2025RevolvingCreditFacilityMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be529-23b1-729c-ad87-b6b95844b3df" xlink:to="loc_mrvl_A2025RevolvingCreditFacilityMember_019be529-23b1-781b-85b3-52a7aa1c7f7c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ThreeYearTrancheLoanMember_019c4725-a321-7fc3-9ea8-b28b6ac0752b" xlink:href="mrvl-20260131.xsd#mrvl_ThreeYearTrancheLoanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be529-23b1-729c-ad87-b6b95844b3df" xlink:to="loc_mrvl_ThreeYearTrancheLoanMember_019c4725-a321-7fc3-9ea8-b28b6ac0752b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019be529-23b1-746f-aa4e-7cbfbafb2be1" 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_LineOfCreditFacilityTable_019b0f52-85f7-7015-8d77-e1d7d5dfa6ae" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019be529-23b1-746f-aa4e-7cbfbafb2be1" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019be529-23b1-746f-aa4e-7cbfbafb2be1_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_019be529-23b1-746f-aa4e-7cbfbafb2be1" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019be529-23b1-746f-aa4e-7cbfbafb2be1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019be529-23b1-7731-8095-fb67738b363c" 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_019be529-23b1-746f-aa4e-7cbfbafb2be1" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019be529-23b1-7731-8095-fb67738b363c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditMember_019be529-23b1-7ef1-b81d-0f015743547b" 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_LongtermDebtTypeDomain_019be529-23b1-7731-8095-fb67738b363c" xlink:to="loc_us-gaap_LineOfCreditMember_019be529-23b1-7ef1-b81d-0f015743547b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019be529-23b1-7626-8c2e-078333589e47" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019b0f52-85f7-7f08-a163-505019c4599c" xlink:to="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_019be529-23b1-7626-8c2e-078333589e47" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019be529-23b1-7c7d-99f2-30182eb759fd" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019b0f52-85f7-7f08-a163-505019c4599c" xlink:to="loc_us-gaap_DebtInstrumentTerm_019be529-23b1-7c7d-99f2-30182eb759fd" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019be529-23b1-74bc-a5c1-c4b5a66ae347" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019b0f52-85f7-7f08-a163-505019c4599c" xlink:to="loc_us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage_019be529-23b1-74bc-a5c1-c4b5a66ae347" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_019be529-23b1-7b64-a215-f7204ffff51f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LineOfCreditFacilityLineItems_019b0f52-85f7-7f08-a163-505019c4599c" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_019be529-23b1-7b64-a215-f7204ffff51f" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/DebtSeniorUnsecuredNotesDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#DebtSeniorUnsecuredNotesDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/DebtSeniorUnsecuredNotesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-75a4-83f7-5f82237c7523" 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_019b0f52-85f7-7037-b62c-48eef38a28a5" 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_019b0f52-85f7-75a4-83f7-5f82237c7523" xlink:to="loc_us-gaap_DebtInstrumentTable_019b0f52-85f7-7037-b62c-48eef38a28a5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis_019be52b-f5e7-7922-befd-a1999ebc7092" 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_019b0f52-85f7-7037-b62c-48eef38a28a5" xlink:to="loc_us-gaap_DebtInstrumentAxis_019be52b-f5e7-7922-befd-a1999ebc7092" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7922-befd-a1999ebc7092_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_019be52b-f5e7-7922-befd-a1999ebc7092" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7922-befd-a1999ebc7092_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" 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_019be52b-f5e7-7922-befd-a1999ebc7092" xlink:to="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2029Member_019be52b-f5e7-7100-b8da-79187512c299" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2029Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_SeniorNotesDue2029Member_019be52b-f5e7-7100-b8da-79187512c299" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2033Member_019be52b-f5e7-7b76-ba81-5f9861089d92" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2033Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_SeniorNotesDue2033Member_019be52b-f5e7-7b76-ba81-5f9861089d92" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2029And2033Member_019be536-c27f-79cf-85f6-689e5268f32a" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2029And2033Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_SeniorNotesDue2029And2033Member_019be536-c27f-79cf-85f6-689e5268f32a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2026Member_019be530-d107-793b-a05d-678f26c9aca4" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2026Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_SeniorNotesDue2026Member_019be530-d107-793b-a05d-678f26c9aca4" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2028Member_019be531-1d09-7a8f-8006-6bb710663fdd" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_SeniorNotesDue2028Member_019be531-1d09-7a8f-8006-6bb710663fdd" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2031Member_019be531-761b-714c-9ba6-1f2a3e121927" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_SeniorNotesDue2031Member_019be531-761b-714c-9ba6-1f2a3e121927" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue20262028And2031Member_019be54a-b622-7205-8678-96e577a46b70" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue20262028And2031Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_SeniorNotesDue20262028And2031Member_019be54a-b622-7205-8678-96e577a46b70" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTGSeniorNotesMember_019be53d-ece6-779f-b97a-d21e5ae79ba4" xlink:href="mrvl-20260131.xsd#mrvl_MTGSeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_MTGSeniorNotesMember_019be53d-ece6-779f-b97a-d21e5ae79ba4" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTGSeniorNotesDue2023Member_019be53a-847b-7d49-a655-d0031ee62857" xlink:href="mrvl-20260131.xsd#mrvl_MTGSeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_MTGSeniorNotesMember_019be53d-ece6-779f-b97a-d21e5ae79ba4" xlink:to="loc_mrvl_MTGSeniorNotesDue2023Member_019be53a-847b-7d49-a655-d0031ee62857" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTGSeniorNotesDue2028Member_019be53a-f66e-72e2-b699-bb2981712d6c" xlink:href="mrvl-20260131.xsd#mrvl_MTGSeniorNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_MTGSeniorNotesMember_019be53d-ece6-779f-b97a-d21e5ae79ba4" xlink:to="loc_mrvl_MTGSeniorNotesDue2028Member_019be53a-f66e-72e2-b699-bb2981712d6c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTISeniorNotesDue2023Member_019be53c-6104-7347-85cc-209e590bf632" xlink:href="mrvl-20260131.xsd#mrvl_MTISeniorNotesDue2023Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_MTISeniorNotesDue2023Member_019be53c-6104-7347-85cc-209e590bf632" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTISeniorNotesDue2028Member_019be53c-a950-7ed6-8536-cce27ec29fea" xlink:href="mrvl-20260131.xsd#mrvl_MTISeniorNotesDue2028Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_MTISeniorNotesDue2028Member_019be53c-a950-7ed6-8536-cce27ec29fea" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTIAndMTG2023NotesMember_019be540-d7b3-7dce-b3f1-7bf5d0512d60" xlink:href="mrvl-20260131.xsd#mrvl_MTIAndMTG2023NotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_MTIAndMTG2023NotesMember_019be540-d7b3-7dce-b3f1-7bf5d0512d60" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MTISeniorNotesMember_019be542-f799-7df5-ab3a-9e5ac5f8716e" xlink:href="mrvl-20260131.xsd#mrvl_MTISeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_MTISeniorNotesMember_019be542-f799-7df5-ab3a-9e5ac5f8716e" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_A2030And2035SeniorNotesMember_019c943a-7f1e-7d00-908c-14f66235c9b9" xlink:href="mrvl-20260131.xsd#mrvl_A2030And2035SeniorNotesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentNameDomain_019be52b-f5e7-7378-a73f-d92539676946" xlink:to="loc_mrvl_A2030And2035SeniorNotesMember_019c943a-7f1e-7d00-908c-14f66235c9b9" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2030Member_019be545-2973-7da5-ac5a-12620d915146" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2030Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_A2030And2035SeniorNotesMember_019c943a-7f1e-7d00-908c-14f66235c9b9" xlink:to="loc_mrvl_SeniorNotesDue2030Member_019be545-2973-7da5-ac5a-12620d915146" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SeniorNotesDue2035Member_019be545-2973-7358-bc34-da35b23f25f5" xlink:href="mrvl-20260131.xsd#mrvl_SeniorNotesDue2035Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_A2030And2035SeniorNotesMember_019c943a-7f1e-7d00-908c-14f66235c9b9" xlink:to="loc_mrvl_SeniorNotesDue2035Member_019be545-2973-7358-bc34-da35b23f25f5" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis_019be52b-f5e7-78af-a955-48907c8cfeaa" 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_019b0f52-85f7-7037-b62c-48eef38a28a5" xlink:to="loc_us-gaap_LongtermDebtTypeAxis_019be52b-f5e7-78af-a955-48907c8cfeaa" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019be52b-f5e7-78af-a955-48907c8cfeaa_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_019be52b-f5e7-78af-a955-48907c8cfeaa" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019be52b-f5e7-78af-a955-48907c8cfeaa_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeDomain_019be52b-f5e7-7c57-85b4-26936f445082" 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_019be52b-f5e7-78af-a955-48907c8cfeaa" xlink:to="loc_us-gaap_LongtermDebtTypeDomain_019be52b-f5e7-7c57-85b4-26936f445082" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember_019be52b-f5e7-773d-9346-69972750d928" 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_019be52b-f5e7-7c57-85b4-26936f445082" xlink:to="loc_us-gaap_SeniorNotesMember_019be52b-f5e7-773d-9346-69972750d928" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount_019be52b-f5e7-7798-a1cc-a6f4cda376ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-75a4-83f7-5f82237c7523" xlink:to="loc_us-gaap_DebtInstrumentFaceAmount_019be52b-f5e7-7798-a1cc-a6f4cda376ae" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019be52b-f5e7-7423-817e-7f5d9c1a28de" 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_DebtInstrumentLineItems_019b0f52-85f7-75a4-83f7-5f82237c7523" xlink:to="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage_019be52b-f5e7-7423-817e-7f5d9c1a28de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTerm_019be52f-c21d-7eba-b345-1b95d552bfa6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-75a4-83f7-5f82237c7523" xlink:to="loc_us-gaap_DebtInstrumentTerm_019be52f-c21d-7eba-b345-1b95d552bfa6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_019be52f-c21d-7de2-9b84-388d3dbddeab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DebtInstrumentRedemptionPricePercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-75a4-83f7-5f82237c7523" xlink:to="loc_us-gaap_DebtInstrumentRedemptionPricePercentage_019be52f-c21d-7de2-9b84-388d3dbddeab" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebt_019be52f-c21d-7be7-a16d-0489079c386e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-75a4-83f7-5f82237c7523" xlink:to="loc_us-gaap_LongTermDebt_019be52f-c21d-7be7-a16d-0489079c386e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_DebtInstrumentPrincipalAmountExchanged_019be53f-d832-7a37-be1c-cb938651ba83" xlink:href="mrvl-20260131.xsd#mrvl_DebtInstrumentPrincipalAmountExchanged"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-75a4-83f7-5f82237c7523" xlink:to="loc_mrvl_DebtInstrumentPrincipalAmountExchanged_019be53f-d832-7a37-be1c-cb938651ba83" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfSeniorDebt_019be540-d7b3-7fb3-a8a4-b2a3aa37ac82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RepaymentsOfSeniorDebt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DebtInstrumentLineItems_019b0f52-85f7-75a4-83f7-5f82237c7523" xlink:to="loc_us-gaap_RepaymentsOfSeniorDebt_019be540-d7b3-7fb3-a8a4-b2a3aa37ac82" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#CommitmentsandContingenciesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/CommitmentsandContingenciesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingenciesLineItems_019b0f52-86bc-71bc-9b96-4a4aba9d02db" 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_019b0f52-86bc-7e36-bf69-31eab85cd012" 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_019b0f52-86bc-71bc-9b96-4a4aba9d02db" xlink:to="loc_us-gaap_LossContingenciesTable_019b0f52-86bc-7e36-bf69-31eab85cd012" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019c943c-79f4-7588-963a-60383bbbe7e8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_019b0f52-86bc-7e36-bf69-31eab85cd012" xlink:to="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019c943c-79f4-7588-963a-60383bbbe7e8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_019c943c-79f4-7588-963a-60383bbbe7e8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019c943c-79f4-7588-963a-60383bbbe7e8" xlink:to="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_019c943c-79f4-7588-963a-60383bbbe7e8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_019c943c-79f4-7120-98f3-8ec1af2ebf31" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_UnrecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019c943c-79f4-7588-963a-60383bbbe7e8" xlink:to="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_019c943c-79f4-7120-98f3-8ec1af2ebf31" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CapitalAdditionsMember_019c943d-0544-744d-bdfb-28ce591d03c2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CapitalAdditionsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_UnconditionalPurchaseObligationCategoryOfGoodsOrServicesAcquiredDomain_019c943c-79f4-7120-98f3-8ec1af2ebf31" xlink:to="loc_us-gaap_CapitalAdditionsMember_019c943d-0544-744d-bdfb-28ce591d03c2" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019b0f52-86bc-7bae-92eb-ee13cb64e533" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_019b0f52-86bc-7e36-bf69-31eab85cd012" xlink:to="loc_us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019b0f52-86bc-7bae-92eb-ee13cb64e533" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7bae-92eb-ee13cb64e533_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019b0f52-86bc-7bae-92eb-ee13cb64e533" xlink:to="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7bae-92eb-ee13cb64e533_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7d8d-8bae-7e01ba9f8565" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019b0f52-86bc-7bae-92eb-ee13cb64e533" xlink:to="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7d8d-8bae-7e01ba9f8565" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ManufacturingSupplyCapacityReservationAgreementsMember_019b0f52-86bc-755c-a841-709b5bfb2355" xlink:href="mrvl-20260131.xsd#mrvl_ManufacturingSupplyCapacityReservationAgreementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7d8d-8bae-7e01ba9f8565" xlink:to="loc_mrvl_ManufacturingSupplyCapacityReservationAgreementsMember_019b0f52-86bc-755c-a841-709b5bfb2355" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_TechnologyServicesAndLicenseFeeMember_019b0f52-86bc-7b6d-a5a9-8565eecc36e4" xlink:href="mrvl-20260131.xsd#mrvl_TechnologyServicesAndLicenseFeeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7d8d-8bae-7e01ba9f8565" xlink:to="loc_mrvl_TechnologyServicesAndLicenseFeeMember_019b0f52-86bc-7b6d-a5a9-8565eecc36e4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019b0f52-86bc-70bf-b6ce-fc2eb7023948" 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_LossContingenciesTable_019b0f52-86bc-7e36-bf69-31eab85cd012" xlink:to="loc_srt_RangeAxis_019b0f52-86bc-70bf-b6ce-fc2eb7023948" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0f52-86bc-70bf-b6ce-fc2eb7023948_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_019b0f52-86bc-70bf-b6ce-fc2eb7023948" xlink:to="loc_srt_RangeMember_019b0f52-86bc-70bf-b6ce-fc2eb7023948_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0f52-86bc-75db-827a-690b7dd1802c" 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_019b0f52-86bc-70bf-b6ce-fc2eb7023948" xlink:to="loc_srt_RangeMember_019b0f52-86bc-75db-827a-690b7dd1802c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019b0f52-86bc-748e-aa91-adf794a2c367" 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_019b0f52-86bc-75db-827a-690b7dd1802c" xlink:to="loc_srt_MinimumMember_019b0f52-86bc-748e-aa91-adf794a2c367" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019b0f52-86bc-71a0-8fd4-429cbb26aa34" 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_019b0f52-86bc-75db-827a-690b7dd1802c" xlink:to="loc_srt_MaximumMember_019b0f52-86bc-71a0-8fd4-429cbb26aa34" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_StandardProductWarrantyTimePeriod_019b0f52-86bc-77f7-947f-5a656c09578b" xlink:href="mrvl-20260131.xsd#mrvl_StandardProductWarrantyTimePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019b0f52-86bc-71bc-9b96-4a4aba9d02db" xlink:to="loc_mrvl_StandardProductWarrantyTimePeriod_019b0f52-86bc-77f7-947f-5a656c09578b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligation_019c943d-7d0a-7e3f-86f6-dbca8ef51230" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019b0f52-86bc-71bc-9b96-4a4aba9d02db" xlink:to="loc_us-gaap_ContractualObligation_019c943d-7d0a-7e3f-86f6-dbca8ef51230" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermPurchaseCommitmentPeriod_019b0f52-86bc-7a2a-bad2-c77f4499934e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongtermPurchaseCommitmentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019b0f52-86bc-71bc-9b96-4a4aba9d02db" xlink:to="loc_us-gaap_LongtermPurchaseCommitmentPeriod_019b0f52-86bc-7a2a-bad2-c77f4499934e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentAmount_019b0f52-86bc-7c72-af68-ef28bee47a2d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LongTermPurchaseCommitmentAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019b0f52-86bc-71bc-9b96-4a4aba9d02db" xlink:to="loc_us-gaap_LongTermPurchaseCommitmentAmount_019b0f52-86bc-7c72-af68-ef28bee47a2d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitment_019b0f52-86bc-7e63-9121-f689217d4fdf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherCommitment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019b0f52-86bc-71bc-9b96-4a4aba9d02db" xlink:to="loc_us-gaap_OtherCommitment_019b0f52-86bc-7e63-9121-f689217d4fdf" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductWarrantyExpense_019b0f52-86bc-7186-9686-19b74c58056f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProductWarrantyExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019b0f52-86bc-71bc-9b96-4a4aba9d02db" xlink:to="loc_us-gaap_ProductWarrantyExpense_019b0f52-86bc-7186-9686-19b74c58056f" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecrease_019b0f52-86bc-72a2-a705-c6f2a0f21a3e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_019b0f52-86bc-71bc-9b96-4a4aba9d02db" xlink:to="loc_us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecrease_019b0f52-86bc-72a2-a705-c6f2a0f21a3e" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/CommitmentsandContingenciesFutureMinimumPaymentsUnderTechnologyLicenseObligationsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#CommitmentsandContingenciesFutureMinimumPaymentsUnderTechnologyLicenseObligationsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/CommitmentsandContingenciesFutureMinimumPaymentsUnderTechnologyLicenseObligationsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecordedUnconditionalPurchaseObligationLineItems_019b0f52-86bc-7927-9793-2e935d6a6d24" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RecordedUnconditionalPurchaseObligationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecordedUnconditionalPurchaseObligationTable_019b0f52-86bc-77e8-9f82-e90e153584a4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RecordedUnconditionalPurchaseObligationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationLineItems_019b0f52-86bc-7927-9793-2e935d6a6d24" xlink:to="loc_us-gaap_RecordedUnconditionalPurchaseObligationTable_019b0f52-86bc-77e8-9f82-e90e153584a4" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019b0f52-86bc-77e4-9553-f723c728d389" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationTable_019b0f52-86bc-77e8-9f82-e90e153584a4" xlink:to="loc_us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019b0f52-86bc-77e4-9553-f723c728d389" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-77e4-9553-f723c728d389_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019b0f52-86bc-77e4-9553-f723c728d389" xlink:to="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-77e4-9553-f723c728d389_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7ffd-8c11-bf6e239a8943" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationByCategoryOfItemPurchasedAxis_019b0f52-86bc-77e4-9553-f723c728d389" xlink:to="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7ffd-8c11-bf6e239a8943" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_PurchaseCommitmentsToFoundriesAndTestAndAssemblyPartnersMember_019b0f52-86bc-7184-b686-29674125cf3a" xlink:href="mrvl-20260131.xsd#mrvl_PurchaseCommitmentsToFoundriesAndTestAndAssemblyPartnersMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7ffd-8c11-bf6e239a8943" xlink:to="loc_mrvl_PurchaseCommitmentsToFoundriesAndTestAndAssemblyPartnersMember_019b0f52-86bc-7184-b686-29674125cf3a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_TechnologyServicesAndLicenseFeeMember_019b0f52-86bc-7b9b-9e74-b25b1e21fd8f" xlink:href="mrvl-20260131.xsd#mrvl_TechnologyServicesAndLicenseFeeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationCategoryDomain_019b0f52-86bc-7ffd-8c11-bf6e239a8943" xlink:to="loc_mrvl_TechnologyServicesAndLicenseFeeMember_019b0f52-86bc-7b9b-9e74-b25b1e21fd8f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligationFiscalYearMaturityAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RecordedUnconditionalPurchaseObligationLineItems_019b0f52-86bc-7927-9793-2e935d6a6d24" xlink:to="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueInNextTwelveMonths_019b0f52-86bc-778c-9939-68932e7422e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligationDueInNextTwelveMonths"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:to="loc_us-gaap_ContractualObligationDueInNextTwelveMonths_019b0f52-86bc-778c-9939-68932e7422e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueInSecondYear_019b0f52-86bc-71d2-ae38-2f304d8bdf5f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligationDueInSecondYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:to="loc_us-gaap_ContractualObligationDueInSecondYear_019b0f52-86bc-71d2-ae38-2f304d8bdf5f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueInThirdYear_019b0f52-86bc-7c01-b6c3-366045487746" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligationDueInThirdYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:to="loc_us-gaap_ContractualObligationDueInThirdYear_019b0f52-86bc-7c01-b6c3-366045487746" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueInFourthYear_019b0f52-86bc-725b-b100-32d6bc9ab5da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligationDueInFourthYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:to="loc_us-gaap_ContractualObligationDueInFourthYear_019b0f52-86bc-725b-b100-32d6bc9ab5da" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueInFifthYear_019b0f52-86bc-70d5-b6d0-91075a36c1e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligationDueInFifthYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:to="loc_us-gaap_ContractualObligationDueInFifthYear_019b0f52-86bc-70d5-b6d0-91075a36c1e5" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligationDueAfterFifthYear_019b0f52-86bc-74de-b560-09020c425cf7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligationDueAfterFifthYear"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:to="loc_us-gaap_ContractualObligationDueAfterFifthYear_019b0f52-86bc-74de-b560-09020c425cf7" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractualObligation_019b0f52-86bc-7416-abd3-5a139c19f60d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ContractualObligation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ContractualObligationFiscalYearMaturityAbstract_019b0f52-86bc-7d75-ba98-322c25b69e96" xlink:to="loc_us-gaap_ContractualObligation_019b0f52-86bc-7416-abd3-5a139c19f60d" xlink:type="arc" order="7"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/StockholdersEquityRestrictedStockUnitWithholdingsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#StockholdersEquityRestrictedStockUnitWithholdingsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/StockholdersEquityRestrictedStockUnitWithholdingsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7b78-bbb3-561306718a17" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7be4-bfde-82c1963d3ef3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7b78-bbb3-561306718a17" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7be4-bfde-82c1963d3ef3" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7d3e-a87a-00681784e6a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7be4-bfde-82c1963d3ef3" xlink:to="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7d3e-a87a-00681784e6a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7d3e-a87a-00681784e6a1_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7d3e-a87a-00681784e6a1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7d3e-a87a-00681784e6a1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7131-9061-157a79084e0d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7d3e-a87a-00681784e6a1" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7131-9061-157a79084e0d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember_019b0f52-86bd-739b-8d5a-02de74f71c28" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7131-9061-157a79084e0d" xlink:to="loc_us-gaap_RestrictedStockMember_019b0f52-86bd-739b-8d5a-02de74f71c28" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019b0f52-86bd-7474-9669-b43e5526f368" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7b78-bbb3-561306718a17" xlink:to="loc_us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation_019b0f52-86bd-7474-9669-b43e5526f368" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019b0f52-86bd-7092-9a3d-c61bfd0a5c04" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7b78-bbb3-561306718a17" xlink:to="loc_us-gaap_AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation_019b0f52-86bd-7092-9a3d-c61bfd0a5c04" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/StockholdersEquityStockRepurchaseProgramDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#StockholdersEquityStockRepurchaseProgramDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/StockholdersEquityStockRepurchaseProgramDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019cd935-07aa-7513-b60b-e3be911a3801" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019cd935-07aa-7513-b60b-e3be911a3801" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramAxis_019cd935-07aa-76e1-b35f-37bcc4d0d5c7" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ShareRepurchaseProgramAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019cd935-07aa-7513-b60b-e3be911a3801" xlink:to="loc_srt_ShareRepurchaseProgramAxis_019cd935-07aa-76e1-b35f-37bcc4d0d5c7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramDomain_019cd935-07aa-76e1-b35f-37bcc4d0d5c7_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ShareRepurchaseProgramAxis_019cd935-07aa-76e1-b35f-37bcc4d0d5c7" xlink:to="loc_srt_ShareRepurchaseProgramDomain_019cd935-07aa-76e1-b35f-37bcc4d0d5c7_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ShareRepurchaseProgramDomain_019cd935-07aa-7ee1-96b1-f06277e55f9d" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ShareRepurchaseProgramDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ShareRepurchaseProgramAxis_019cd935-07aa-76e1-b35f-37bcc4d0d5c7" xlink:to="loc_srt_ShareRepurchaseProgramDomain_019cd935-07aa-7ee1-96b1-f06277e55f9d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_AcceleratedShareRepurchaseAgreementMember_019cd935-e3cf-7d5c-ba82-58c543bc14b9" xlink:href="mrvl-20260131.xsd#mrvl_AcceleratedShareRepurchaseAgreementMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ShareRepurchaseProgramDomain_019cd935-07aa-7ee1-96b1-f06277e55f9d" xlink:to="loc_mrvl_AcceleratedShareRepurchaseAgreementMember_019cd935-e3cf-7d5c-ba82-58c543bc14b9" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019c4882-ef9a-7f05-8ad7-0a3e92cd906b" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_srt_StockRepurchaseProgramAuthorizedAmount1_019c4882-ef9a-7f05-8ad7-0a3e92cd906b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_StockRepurchaseProgramAdditionalAuthorizedAmount_019c4882-ef9a-7fe4-8e19-ec9406ed5dec" xlink:href="mrvl-20260131.xsd#mrvl_StockRepurchaseProgramAdditionalAuthorizedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_mrvl_StockRepurchaseProgramAdditionalAuthorizedAmount_019c4882-ef9a-7fe4-8e19-ec9406ed5dec" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt_019c4883-3d03-7b17-bc7e-f025171944d0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt_019c4883-3d03-7b17-bc7e-f025171944d0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodShares_019c4883-3d03-77af-9e5b-9568ce551b09" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedDuringPeriodShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodShares_019c4883-3d03-77af-9e5b-9568ce551b09" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchasedDuringPeriodValue_019c4883-5b08-7473-899b-c5edeb70c370" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockRepurchasedDuringPeriodValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_us-gaap_StockRepurchasedDuringPeriodValue_019c4883-5b08-7473-899b-c5edeb70c370" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_StockRepurchaseProgramRepurchasedShares_019c4883-3d03-75af-956c-cf91a792f924" xlink:href="mrvl-20260131.xsd#mrvl_StockRepurchaseProgramRepurchasedShares"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_mrvl_StockRepurchaseProgramRepurchasedShares_019c4883-3d03-75af-956c-cf91a792f924" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AcceleratedShareRepurchasesFinalPricePaidPerShare_019cd8cb-2b08-7130-8378-d4cb3c198a64" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AcceleratedShareRepurchasesFinalPricePaidPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_us-gaap_AcceleratedShareRepurchasesFinalPricePaidPerShare_019cd8cb-2b08-7130-8378-d4cb3c198a64" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_StockRepurchaseProgramRepurchasedAmount_019c956b-637e-7ccb-96a3-9316cc85a6ec" xlink:href="mrvl-20260131.xsd#mrvl_StockRepurchaseProgramRepurchasedAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_mrvl_StockRepurchaseProgramRepurchasedAmount_019c956b-637e-7ccb-96a3-9316cc85a6ec" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019c4883-5b08-7f99-9b72-b00d5384ecfd" 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_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019cd935-07aa-77eb-8602-5c98d75b95c0" xlink:to="loc_us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1_019c4883-5b08-7f99-9b72-b00d5384ecfd" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlans1995StockOptionPlanDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlans1995StockOptionPlanDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlans1995StockOptionPlanDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-79fa-8d04-a5382cbeb1ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7bd5-978e-306d183b0221" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-79fa-8d04-a5382cbeb1ad" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7bd5-978e-306d183b0221" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019b0f52-86bd-7ed3-9bc3-351ea9edc9c9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7bd5-978e-306d183b0221" xlink:to="loc_us-gaap_PlanNameAxis_019b0f52-86bd-7ed3-9bc3-351ea9edc9c9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7ed3-9bc3-351ea9edc9c9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019b0f52-86bd-7ed3-9bc3-351ea9edc9c9" xlink:to="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7ed3-9bc3-351ea9edc9c9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7131-bd98-b5756a443f7a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019b0f52-86bd-7ed3-9bc3-351ea9edc9c9" xlink:to="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7131-bd98-b5756a443f7a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EmployeeStockOptionPlanNineteenNinetyFivePlanMember_019b0f52-86bd-71d8-a9e9-ffd2704d9ff0" xlink:href="mrvl-20260131.xsd#mrvl_EmployeeStockOptionPlanNineteenNinetyFivePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7131-bd98-b5756a443f7a" xlink:to="loc_mrvl_EmployeeStockOptionPlanNineteenNinetyFivePlanMember_019b0f52-86bd-71d8-a9e9-ffd2704d9ff0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019b0f52-86bd-78d5-964f-6e907e8f54c6" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7bd5-978e-306d183b0221" xlink:to="loc_srt_RangeAxis_019b0f52-86bd-78d5-964f-6e907e8f54c6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0f52-86bd-78d5-964f-6e907e8f54c6_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_019b0f52-86bd-78d5-964f-6e907e8f54c6" xlink:to="loc_srt_RangeMember_019b0f52-86bd-78d5-964f-6e907e8f54c6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0f52-86bd-7094-8e56-f17898ce136d" 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_019b0f52-86bd-78d5-964f-6e907e8f54c6" xlink:to="loc_srt_RangeMember_019b0f52-86bd-7094-8e56-f17898ce136d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019b0f52-86bd-7ce5-a38e-7263a0f00b13" 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_019b0f52-86bd-7094-8e56-f17898ce136d" xlink:to="loc_srt_MinimumMember_019b0f52-86bd-7ce5-a38e-7263a0f00b13" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019b0f52-86bd-7b96-9e19-290a449bd741" 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_019b0f52-86bd-7094-8e56-f17898ce136d" xlink:to="loc_srt_MaximumMember_019b0f52-86bd-7b96-9e19-290a449bd741" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7115-a123-894f8028afee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7bd5-978e-306d183b0221" xlink:to="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7115-a123-894f8028afee" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7115-a123-894f8028afee_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7115-a123-894f8028afee" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7115-a123-894f8028afee_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7265-8dfe-5d23cc376bfe" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7115-a123-894f8028afee" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7265-8dfe-5d23cc376bfe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_IncentiveStockOptionMember_019b0f52-86bd-7104-b5ee-e6c10daca605" xlink:href="mrvl-20260131.xsd#mrvl_IncentiveStockOptionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7265-8dfe-5d23cc376bfe" xlink:to="loc_mrvl_IncentiveStockOptionMember_019b0f52-86bd-7104-b5ee-e6c10daca605" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_PerformanceBasedRestrictedStockUnitMember_019b0f52-86bd-71ba-afda-34d6292c65be" xlink:href="mrvl-20260131.xsd#mrvl_PerformanceBasedRestrictedStockUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7265-8dfe-5d23cc376bfe" xlink:to="loc_mrvl_PerformanceBasedRestrictedStockUnitMember_019b0f52-86bd-71ba-afda-34d6292c65be" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualAxis_019b0f52-86bd-7ff6-ab50-865aa7986a9f" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7bd5-978e-306d183b0221" xlink:to="loc_srt_TitleOfIndividualAxis_019b0f52-86bd-7ff6-ab50-865aa7986a9f" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019b0f52-86bd-7ff6-ab50-865aa7986a9f_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_TitleOfIndividualAxis_019b0f52-86bd-7ff6-ab50-865aa7986a9f" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019b0f52-86bd-7ff6-ab50-865aa7986a9f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019b0f52-86bd-7ef3-a5d6-dcd26eb1042e" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_TitleOfIndividualAxis_019b0f52-86bd-7ff6-ab50-865aa7986a9f" xlink:to="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019b0f52-86bd-7ef3-a5d6-dcd26eb1042e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ExecutiveOfficerMember_019b0f52-86bd-76a6-aeaa-44d3fe919ccd" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ExecutiveOfficerMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain_019b0f52-86bd-7ef3-a5d6-dcd26eb1042e" xlink:to="loc_srt_ExecutiveOfficerMember_019b0f52-86bd-76a6-aeaa-44d3fe919ccd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019b0f52-86bd-7d1a-a5ee-51ba3551ac2c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-79fa-8d04-a5382cbeb1ad" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized_019b0f52-86bd-7d1a-a5ee-51ba3551ac2c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019b0f52-86bd-7da1-a591-1b467949619f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-79fa-8d04-a5382cbeb1ad" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019b0f52-86bd-7da1-a591-1b467949619f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019b0f52-86bd-7f7b-9f00-a493c50c5fb0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-79fa-8d04-a5382cbeb1ad" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019b0f52-86bd-7f7b-9f00-a493c50c5fb0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedPercent_019b0f52-86bd-7708-992a-8098973784b7" xlink:href="mrvl-20260131.xsd#mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-79fa-8d04-a5382cbeb1ad" xlink:to="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedPercent_019b0f52-86bd-7708-992a-8098973784b7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_019b0f52-86bd-709a-8dca-a0e31341a421" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-79fa-8d04-a5382cbeb1ad" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardRequisiteServicePeriod1_019b0f52-86bd-709a-8dca-a0e31341a421" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_019b0f52-86bd-7eec-841f-b96959d8991f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-79fa-8d04-a5382cbeb1ad" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod_019b0f52-86bd-7eec-841f-b96959d8991f" xlink:type="arc" order="5"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansOutsideDirectorEquityCompensationPolicyDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansOutsideDirectorEquityCompensationPolicyDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansOutsideDirectorEquityCompensationPolicyDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-715a-b30d-4b153edf966d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7485-9fa8-8e44a2d6f521" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-715a-b30d-4b153edf966d" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7485-9fa8-8e44a2d6f521" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019b0f52-86bd-735b-a0d3-10c47e2ae8d2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7485-9fa8-8e44a2d6f521" xlink:to="loc_us-gaap_PlanNameAxis_019b0f52-86bd-735b-a0d3-10c47e2ae8d2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019b0f52-86bd-735b-a0d3-10c47e2ae8d2_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019b0f52-86bd-735b-a0d3-10c47e2ae8d2" xlink:to="loc_us-gaap_PlanNameDomain_019b0f52-86bd-735b-a0d3-10c47e2ae8d2_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019b0f52-86bd-76d4-918a-6c71bb693a9d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019b0f52-86bd-735b-a0d3-10c47e2ae8d2" xlink:to="loc_us-gaap_PlanNameDomain_019b0f52-86bd-76d4-918a-6c71bb693a9d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_OutsideDirectorEquityCompensationPolicyMember_019b0f52-86bd-7212-822b-e72cd601f84a" xlink:href="mrvl-20260131.xsd#mrvl_OutsideDirectorEquityCompensationPolicyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019b0f52-86bd-76d4-918a-6c71bb693a9d" xlink:to="loc_mrvl_OutsideDirectorEquityCompensationPolicyMember_019b0f52-86bd-7212-822b-e72cd601f84a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7f05-a677-19f34e7769d6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7485-9fa8-8e44a2d6f521" xlink:to="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7f05-a677-19f34e7769d6" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7f05-a677-19f34e7769d6_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7f05-a677-19f34e7769d6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7f05-a677-19f34e7769d6_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7647-9cf9-ddd154d5cf97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7f05-a677-19f34e7769d6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7647-9cf9-ddd154d5cf97" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockUnitsRSUMember_019b0f52-86bd-7d84-9924-b03a6acbae19" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestrictedStockUnitsRSUMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7647-9cf9-ddd154d5cf97" xlink:to="loc_us-gaap_RestrictedStockUnitsRSUMember_019b0f52-86bd-7d84-9924-b03a6acbae19" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_019b0f52-86bd-7a56-bc8f-9f7419efbfd6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-715a-b30d-4b153edf966d" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage_019b0f52-86bd-7a56-bc8f-9f7419efbfd6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019b0f52-86bd-7180-81d4-a71e8d8c468c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-715a-b30d-4b153edf966d" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_019b0f52-86bd-7180-81d4-a71e8d8c468c" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansEmployeeStockPurchasePlanDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansEmployeeStockPurchasePlanDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansEmployeeStockPurchasePlanDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-70d5-adc3-7e9038bfbd9a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-70d5-adc3-7e9038bfbd9a" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019b0f52-86bd-702a-b81a-0d40c65c175e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-70d5-adc3-7e9038bfbd9a" xlink:to="loc_us-gaap_PlanNameAxis_019b0f52-86bd-702a-b81a-0d40c65c175e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019b0f52-86bd-702a-b81a-0d40c65c175e_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019b0f52-86bd-702a-b81a-0d40c65c175e" xlink:to="loc_us-gaap_PlanNameDomain_019b0f52-86bd-702a-b81a-0d40c65c175e_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7035-a73a-81b29a26f2af" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019b0f52-86bd-702a-b81a-0d40c65c175e" xlink:to="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7035-a73a-81b29a26f2af" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EmployeeStockPurchasePlanTwoThousandRestatedPlanMember_019b0f52-86bd-7ef6-95c2-6cf646c86944" xlink:href="mrvl-20260131.xsd#mrvl_EmployeeStockPurchasePlanTwoThousandRestatedPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7035-a73a-81b29a26f2af" xlink:to="loc_mrvl_EmployeeStockPurchasePlanTwoThousandRestatedPlanMember_019b0f52-86bd-7ef6-95c2-6cf646c86944" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate_019b0f52-86bd-74d3-9867-8fd29518ce79" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumEmployeeSubscriptionRate_019b0f52-86bd-74d3-9867-8fd29518ce79" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardLookBackPeriod_019b0f52-86bd-727c-9eaa-1642e9f1ff6a" xlink:href="mrvl-20260131.xsd#mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardLookBackPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardLookBackPeriod_019b0f52-86bd-727c-9eaa-1642e9f1ff6a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_NumberOfPurchasePeriodsPerEnrollmentPeriod_019b0f52-86bd-7f34-bbbc-039cc02a1d02" xlink:href="mrvl-20260131.xsd#mrvl_NumberOfPurchasePeriodsPerEnrollmentPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_mrvl_NumberOfPurchasePeriodsPerEnrollmentPeriod_019b0f52-86bd-7f34-bbbc-039cc02a1d02" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SharebasedCompensationArrangementbySharebasedPaymentAwardPurchasePeriod_019b0f52-86bd-7476-b76e-b07b37ba37b3" xlink:href="mrvl-20260131.xsd#mrvl_SharebasedCompensationArrangementbySharebasedPaymentAwardPurchasePeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_mrvl_SharebasedCompensationArrangementbySharebasedPaymentAwardPurchasePeriod_019b0f52-86bd-7476-b76e-b07b37ba37b3" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate_019b0f52-86bd-7208-a5fc-5c7e8d5db9da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardDiscountFromMarketPricePurchaseDate_019b0f52-86bd-7208-a5fc-5c7e8d5db9da" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardDurationOfOfferingPeriod_019b0f52-86bd-784d-adf4-2643c6cf1ba2" xlink:href="mrvl-20260131.xsd#mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardDurationOfOfferingPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardDurationOfOfferingPeriod_019b0f52-86bd-784d-adf4-2643c6cf1ba2" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_019b0f52-86bd-713f-ae27-a9729fcff0e6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesIssuedInPeriod_019b0f52-86bd-713f-ae27-a9729fcff0e6" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased_019b0f52-86bd-7391-a1b1-3dfbf1f770f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPerShareWeightedAveragePriceOfSharesPurchased_019b0f52-86bd-7391-a1b1-3dfbf1f770f2" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019b0f52-86bd-70cb-863e-90ff6132cf68" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019b0f52-86bd-70cb-863e-90ff6132cf68" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019b0f52-86bd-7629-9e98-1e74ca98b6e9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-799f-9746-b229db2cce1c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant_019b0f52-86bd-7629-9e98-1e74ca98b6e9" xlink:type="arc" order="9"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansSummaryofSharebasedCompensationExpenseDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansSummaryofSharebasedCompensationExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansSummaryofSharebasedCompensationExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019b0f52-86bd-7b39-96d9-f74c2afa6cc7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019b0f52-86bd-7376-bcf3-1212e93631da" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019b0f52-86bd-7b39-96d9-f74c2afa6cc7" xlink:to="loc_us-gaap_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019b0f52-86bd-7376-bcf3-1212e93631da" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_019b0f52-86bd-7a9c-ad95-a3d236dcafda" 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_ScheduleOfEmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsTable_019b0f52-86bd-7376-bcf3-1212e93631da" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_019b0f52-86bd-7a9c-ad95-a3d236dcafda" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-7a9c-ad95-a3d236dcafda_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_019b0f52-86bd-7a9c-ad95-a3d236dcafda" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-7a9c-ad95-a3d236dcafda_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-7fdc-80bf-863b20f1740d" 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_019b0f52-86bd-7a9c-ad95-a3d236dcafda" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-7fdc-80bf-863b20f1740d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_019b0f52-86bd-787f-b46c-f7d7b7814b89" 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_019b0f52-86bd-7fdc-80bf-863b20f1740d" xlink:to="loc_us-gaap_CostOfSalesMember_019b0f52-86bd-787f-b46c-f7d7b7814b89" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_019b0f52-86bd-7277-8c2a-a63dc6b179f5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-7fdc-80bf-863b20f1740d" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_019b0f52-86bd-7277-8c2a-a63dc6b179f5" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_019b0f52-86bd-7967-9450-f1fe5b473f5a" 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_019b0f52-86bd-7fdc-80bf-863b20f1740d" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_019b0f52-86bd-7967-9450-f1fe5b473f5a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019b0f52-86bd-723b-a945-36dc57bdf02e" 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_EmployeeServiceShareBasedCompensationAllocationOfRecognizedPeriodCostsLineItems_019b0f52-86bd-7b39-96d9-f74c2afa6cc7" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019b0f52-86bd-723b-a945-36dc57bdf02e" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansRestrictedStockUnitActivityDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansRestrictedStockUnitActivityDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansRestrictedStockUnitActivityDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-77a4-bd6d-9f980f8750b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-75de-a255-553a9fdec396" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-77a4-bd6d-9f980f8750b6" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-75de-a255-553a9fdec396" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-795e-bfd6-7aeb27ffe2e3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-75de-a255-553a9fdec396" xlink:to="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-795e-bfd6-7aeb27ffe2e3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-795e-bfd6-7aeb27ffe2e3_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-795e-bfd6-7aeb27ffe2e3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-795e-bfd6-7aeb27ffe2e3_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7064-8551-0c070b062198" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-795e-bfd6-7aeb27ffe2e3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7064-8551-0c070b062198" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_TimeBasedRestrictedUnitsMember_019b0f52-86bd-7588-8a4a-8be03d255ebd" xlink:href="mrvl-20260131.xsd#mrvl_TimeBasedRestrictedUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7064-8551-0c070b062198" xlink:to="loc_mrvl_TimeBasedRestrictedUnitsMember_019b0f52-86bd-7588-8a4a-8be03d255ebd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_PerformanceBasedRestrictedStockUnitMember_019b0f52-86bd-7b6d-af0b-f84080bd2b4f" xlink:href="mrvl-20260131.xsd#mrvl_PerformanceBasedRestrictedStockUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7064-8551-0c070b062198" xlink:to="loc_mrvl_PerformanceBasedRestrictedStockUnitMember_019b0f52-86bd-7b6d-af0b-f84080bd2b4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019b0f52-86bd-7761-9c5a-1b093e853fa3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-77a4-bd6d-9f980f8750b6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019b0f52-86bd-7761-9c5a-1b093e853fa3" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019b0f52-86bd-771e-99ac-59bee26d5e4c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019b0f52-86bd-7761-9c5a-1b093e853fa3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019b0f52-86bd-771e-99ac-59bee26d5e4c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019b0f52-86bd-7753-93dc-9d024a4b8cf3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019b0f52-86bd-7761-9c5a-1b093e853fa3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_019b0f52-86bd-7753-93dc-9d024a4b8cf3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019b0f52-86bd-7373-8ce2-c211627e3cfb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019b0f52-86bd-7761-9c5a-1b093e853fa3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_019b0f52-86bd-7373-8ce2-c211627e3cfb" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019b0f52-86bd-7f18-9431-75b00d185eb3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward_019b0f52-86bd-7761-9c5a-1b093e853fa3" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod_019b0f52-86bd-7f18-9431-75b00d185eb3" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_019b0f52-86bd-70cf-9b59-561db45c1d69" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019b0f52-86bd-7ff8-ac33-56c742ad2fef" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-77a4-bd6d-9f980f8750b6" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019b0f52-86bd-7ff8-ac33-56c742ad2fef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019b0f52-86bd-7401-a413-8adf250773b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019b0f52-86bd-7ff8-ac33-56c742ad2fef" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019b0f52-86bd-7401-a413-8adf250773b2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019b0f52-86bd-79c5-a10c-0d2d5303168f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019b0f52-86bd-7ff8-ac33-56c742ad2fef" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019b0f52-86bd-79c5-a10c-0d2d5303168f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019b0f52-86bd-7a30-abb4-d852f7d14036" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019b0f52-86bd-7ff8-ac33-56c742ad2fef" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_019b0f52-86bd-7a30-abb4-d852f7d14036" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019b0f52-86bd-7251-8b3c-48a28b2e9f66" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward_019b0f52-86bd-7ff8-ac33-56c742ad2fef" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_019b0f52-86bd-7251-8b3c-48a28b2e9f66" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_019b0f52-86bd-74e9-ad1c-a4d4861a7777" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansRestrictedStockandStockUnitAwardsNarrativeDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansRestrictedStockandStockUnitAwardsNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansRestrictedStockandStockUnitAwardsNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7c12-bf9f-e71f38e8a576" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-70ce-8cb4-bb641d656730" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7c12-bf9f-e71f38e8a576" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-70ce-8cb4-bb641d656730" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-754b-a578-90fd79864c71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-70ce-8cb4-bb641d656730" xlink:to="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-754b-a578-90fd79864c71" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-754b-a578-90fd79864c71_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-754b-a578-90fd79864c71" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-754b-a578-90fd79864c71_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-74f2-93d8-f7a22ac7aadc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-754b-a578-90fd79864c71" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-74f2-93d8-f7a22ac7aadc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_TimeBasedRestrictedUnitsMember_019b0f52-86bd-725e-bf22-0928207806a1" xlink:href="mrvl-20260131.xsd#mrvl_TimeBasedRestrictedUnitsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-74f2-93d8-f7a22ac7aadc" xlink:to="loc_mrvl_TimeBasedRestrictedUnitsMember_019b0f52-86bd-725e-bf22-0928207806a1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_PerformanceBasedRestrictedStockUnitMember_019b0f52-86bd-7465-b623-dc317ca3bf65" xlink:href="mrvl-20260131.xsd#mrvl_PerformanceBasedRestrictedStockUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-74f2-93d8-f7a22ac7aadc" xlink:to="loc_mrvl_PerformanceBasedRestrictedStockUnitMember_019b0f52-86bd-7465-b623-dc317ca3bf65" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_019b0f52-86bd-7517-a41c-42bcd22648b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7c12-bf9f-e71f38e8a576" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueNonvested_019b0f52-86bd-7517-a41c-42bcd22648b4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019b0f52-86bd-7a08-b5a4-b1ae1ac87bf9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7c12-bf9f-e71f38e8a576" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019b0f52-86bd-7a08-b5a4-b1ae1ac87bf9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_019b0f52-86bd-7a5b-b88e-5903769e1f45" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7c12-bf9f-e71f38e8a576" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_019b0f52-86bd-7a5b-b88e-5903769e1f45" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019b0f52-86bd-7edc-b7cd-db8197f331b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7c12-bf9f-e71f38e8a576" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_019b0f52-86bd-7edc-b7cd-db8197f331b6" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019b0f52-86bd-70af-accf-fb2f36cc3a72" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7c12-bf9f-e71f38e8a576" xlink:to="loc_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1_019b0f52-86bd-70af-accf-fb2f36cc3a72" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansWarrantSharesNarrativeDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansWarrantSharesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansWarrantSharesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightLineItems_019c9f87-26ca-7f82-bd96-9fafda83291d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightTable_019c9f87-26ca-7874-9211-f534a5f73459" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019c9f87-26ca-7f82-bd96-9fafda83291d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightTable_019c9f87-26ca-7874-9211-f534a5f73459" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019c9f87-26ca-7d3e-ba82-943eb3e8f423" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ClassOfWarrantOrRightTable_019c9f87-26ca-7874-9211-f534a5f73459" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019c9f87-26ca-7d3e-ba82-943eb3e8f423" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9f87-26ca-7d3e-ba82-943eb3e8f423_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019c9f87-26ca-7d3e-ba82-943eb3e8f423" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9f87-26ca-7d3e-ba82-943eb3e8f423_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9f87-26ca-7649-a960-942e9c49a9f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019c9f87-26ca-7d3e-ba82-943eb3e8f423" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9f87-26ca-7649-a960-942e9c49a9f2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2025WarrantSharesMember_019c9f87-26ca-7b08-b961-479a5e8ffa7f" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2025WarrantSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019c9f87-26ca-7649-a960-942e9c49a9f2" xlink:to="loc_mrvl_Fiscal2025WarrantSharesMember_019c9f87-26ca-7b08-b961-479a5e8ffa7f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019b0f52-86bd-7d91-8d48-dfa14b03da67" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019c9f87-26ca-7f82-bd96-9fafda83291d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019b0f52-86bd-7d91-8d48-dfa14b03da67" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019b0f52-86bd-7228-8b0e-c3e05e3a8552" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019c9f87-26ca-7f82-bd96-9fafda83291d" xlink:to="loc_us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1_019b0f52-86bd-7228-8b0e-c3e05e3a8552" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019b0f52-86bd-7661-9277-7549a077af90" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantsAndRightsOutstandingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019c9f87-26ca-7f82-bd96-9fafda83291d" xlink:to="loc_us-gaap_WarrantsAndRightsOutstandingTerm_019b0f52-86bd-7661-9277-7549a077af90" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_WarrantsAndRightsOutstandingVestingTerm_019b0f52-86bd-730d-ac65-752ed782b573" xlink:href="mrvl-20260131.xsd#mrvl_WarrantsAndRightsOutstandingVestingTerm"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019c9f87-26ca-7f82-bd96-9fafda83291d" xlink:to="loc_mrvl_WarrantsAndRightsOutstandingVestingTerm_019b0f52-86bd-730d-ac65-752ed782b573" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ClassOfWarrantOrRightSharesVested_019b0f52-86bd-7d50-9d12-d448102bf5c8" xlink:href="mrvl-20260131.xsd#mrvl_ClassOfWarrantOrRightSharesVested"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightLineItems_019c9f87-26ca-7f82-bd96-9fafda83291d" xlink:to="loc_mrvl_ClassOfWarrantOrRightSharesVested_019b0f52-86bd-7d50-9d12-d448102bf5c8" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansActivityofWarrantSharesDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansActivityofWarrantSharesDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansActivityofWarrantSharesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7199-8e5f-961bb2fbf99c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7e29-b76a-ff9b8b382bd5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7199-8e5f-961bb2fbf99c" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7e29-b76a-ff9b8b382bd5" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019b0f52-86bd-7b0c-bd3c-dff3932f6a7d" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7e29-b76a-ff9b8b382bd5" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019b0f52-86bd-7b0c-bd3c-dff3932f6a7d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7b0c-bd3c-dff3932f6a7d_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_019b0f52-86bd-7b0c-bd3c-dff3932f6a7d" xlink:to="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7b0c-bd3c-dff3932f6a7d_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7f7f-af77-bf945bc6b86a" 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_019b0f52-86bd-7b0c-bd3c-dff3932f6a7d" xlink:to="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7f7f-af77-bf945bc6b86a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_019b0f52-86bd-75ab-9e0c-fb3cd77affdf" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7f7f-af77-bf945bc6b86a" xlink:to="loc_us-gaap_WarrantMember_019b0f52-86bd-75ab-9e0c-fb3cd77affdf" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightAxis_019c951e-3f35-7f07-88dd-1a2707421414" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7e29-b76a-ff9b8b382bd5" xlink:to="loc_us-gaap_ClassOfWarrantOrRightAxis_019c951e-3f35-7f07-88dd-1a2707421414" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019c951e-3f35-7f07-88dd-1a2707421414_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019c951e-3f35-7f07-88dd-1a2707421414" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019c951e-3f35-7f07-88dd-1a2707421414_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightDomain_019c951e-3f35-7899-825f-542fe7c9a65c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ClassOfWarrantOrRightAxis_019c951e-3f35-7f07-88dd-1a2707421414" xlink:to="loc_us-gaap_ClassOfWarrantOrRightDomain_019c951e-3f35-7899-825f-542fe7c9a65c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2025WarrantSharesMember_019c951e-572a-7c47-ba13-422009a3830f" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2025WarrantSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019c951e-3f35-7899-825f-542fe7c9a65c" xlink:to="loc_mrvl_Fiscal2025WarrantSharesMember_019c951e-572a-7c47-ba13-422009a3830f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_Fiscal2026WarrantSharesMember_019c951e-8f58-70a5-815c-9f77cfeceefe" xlink:href="mrvl-20260131.xsd#mrvl_Fiscal2026WarrantSharesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfWarrantOrRightDomain_019c951e-3f35-7899-825f-542fe7c9a65c" xlink:to="loc_mrvl_Fiscal2026WarrantSharesMember_019c951e-8f58-70a5-815c-9f77cfeceefe" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_019b0f52-86bd-77bc-9773-5ad76a9ba9ea" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7199-8e5f-961bb2fbf99c" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_019b0f52-86bd-77bc-9773-5ad76a9ba9ea" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_019b0f52-86bd-7c7e-9d9c-c0167c351c91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_019b0f52-86bd-77bc-9773-5ad76a9ba9ea" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_019b0f52-86bd-7c7e-9d9c-c0167c351c91" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_019b0f52-86bd-7139-b572-a26716f2a66e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_019b0f52-86bd-77bc-9773-5ad76a9ba9ea" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsGranted_019b0f52-86bd-7139-b572-a26716f2a66e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVested_019b0f52-86bd-7c66-89fd-dca36228386f" xlink:href="mrvl-20260131.xsd#mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVested"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_019b0f52-86bd-77bc-9773-5ad76a9ba9ea" xlink:to="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsVested_019b0f52-86bd-7c66-89fd-dca36228386f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsCancelled_019c473e-5cea-788c-b261-1f753732f02c" xlink:href="mrvl-20260131.xsd#mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsCancelled"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_019b0f52-86bd-77bc-9773-5ad76a9ba9ea" xlink:to="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsCancelled_019c473e-5cea-788c-b261-1f753732f02c" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber_019b0f52-86bd-7dc1-b0b4-f8151cdb4064" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingNumber"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019c951e-3f35-71ef-b64e-089ca1f23699" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7199-8e5f-961bb2fbf99c" xlink:to="loc_us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights_019c951e-3f35-71ef-b64e-089ca1f23699" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansAssumptionsUsedtoCalculateFairValueAwardsforESPPDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansAssumptionsUsedtoCalculateFairValueAwardsforESPPDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansAssumptionsUsedtoCalculateFairValueAwardsforESPPDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7d05-b417-346aa6a8f016" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:to="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7d05-b417-346aa6a8f016" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis_019b0f52-86bd-7942-b6c4-27839894680a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7d05-b417-346aa6a8f016" xlink:to="loc_us-gaap_PlanNameAxis_019b0f52-86bd-7942-b6c4-27839894680a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7942-b6c4-27839894680a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_PlanNameAxis_019b0f52-86bd-7942-b6c4-27839894680a" xlink:to="loc_us-gaap_PlanNameDomain_019b0f52-86bd-7942-b6c4-27839894680a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain_019b0f52-86bd-77b9-95c6-bbf151f6b61c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_PlanNameAxis_019b0f52-86bd-7942-b6c4-27839894680a" xlink:to="loc_us-gaap_PlanNameDomain_019b0f52-86bd-77b9-95c6-bbf151f6b61c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EmployeeStockPurchasePlanMember_019b0f52-86bd-7008-992a-c0715ce335d6" xlink:href="mrvl-20260131.xsd#mrvl_EmployeeStockPurchasePlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PlanNameDomain_019b0f52-86bd-77b9-95c6-bbf151f6b61c" xlink:to="loc_mrvl_EmployeeStockPurchasePlanMember_019b0f52-86bd-7008-992a-c0715ce335d6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7173-a517-622bc503b846" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AwardTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7d05-b417-346aa6a8f016" xlink:to="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7173-a517-622bc503b846" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7173-a517-622bc503b846_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7173-a517-622bc503b846" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7173-a517-622bc503b846_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7b7d-8e4c-42076237181b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AwardTypeAxis_019b0f52-86bd-7173-a517-622bc503b846" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7b7d-8e4c-42076237181b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_PerformanceBasedRestrictedStockUnitMember_019b0f52-86bd-726b-b863-65b567224b6e" xlink:href="mrvl-20260131.xsd#mrvl_PerformanceBasedRestrictedStockUnitMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_019b0f52-86bd-7b7d-8e4c-42076237181b" xlink:to="loc_mrvl_PerformanceBasedRestrictedStockUnitMember_019b0f52-86bd-726b-b863-65b567224b6e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019b0f52-86bd-7443-a373-9f0e8e30fd23" 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_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_019b0f52-86bd-7d05-b417-346aa6a8f016" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019b0f52-86bd-7443-a373-9f0e8e30fd23" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7443-a373-9f0e8e30fd23_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_019b0f52-86bd-7443-a373-9f0e8e30fd23" xlink:to="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7443-a373-9f0e8e30fd23_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-79c3-8298-cc9ffca77d00" 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_019b0f52-86bd-7443-a373-9f0e8e30fd23" xlink:to="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-79c3-8298-cc9ffca77d00" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WarrantMember_019b0f52-86bd-72b0-ba67-076983fc7572" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WarrantMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-79c3-8298-cc9ffca77d00" xlink:to="loc_us-gaap_WarrantMember_019b0f52-86bd-72b0-ba67-076983fc7572" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ClassOfWarrantOrRightGrantDateFairValue_019cd938-5ed4-7b85-8c46-63eaf30a9580" xlink:href="mrvl-20260131.xsd#mrvl_ClassOfWarrantOrRightGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:to="loc_mrvl_ClassOfWarrantOrRightGrantDateFairValue_019cd938-5ed4-7b85-8c46-63eaf30a9580" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019b0f52-86bd-7624-868b-afc639b1a903" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue_019b0f52-86bd-7624-868b-afc639b1a903" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_019b0f52-86bd-73c8-a5e9-e1e226e2ceeb" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate_019b0f52-86bd-73c8-a5e9-e1e226e2ceeb" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_019b0f52-86bd-7b8d-baff-ed54ec69794d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:to="loc_us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardFairValueAssumptionsExpectedTerm1_019b0f52-86bd-7b8d-baff-ed54ec69794d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageIndexCorrelationRate_019b0f52-86bd-79c0-bef3-8ccbce3e7e8e" xlink:href="mrvl-20260131.xsd#mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageIndexCorrelationRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:to="loc_mrvl_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsWeightedAverageIndexCorrelationRate_019b0f52-86bd-79c0-bef3-8ccbce3e7e8e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_019b0f52-86bd-79f2-bd9f-9056a2cb4a11" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate_019b0f52-86bd-79f2-bd9f-9056a2cb4a11" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_019b0f52-86bd-7f0b-81c0-f042fa84e3ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_019b0f52-86bd-7097-bc50-f6ec4d575512" xlink:to="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate_019b0f52-86bd-7f0b-81c0-f042fa84e3ba" xlink:type="arc" order="6"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansEmployee401kPlansDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#EquityCompensationandEmployeeBenefitPlansEmployee401kPlansDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/EquityCompensationandEmployeeBenefitPlansEmployee401kPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_019b0f52-86bd-7390-afc3-efb797572820" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanTable_019b0f52-86bd-7701-a9c6-99e0523f5173" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_019b0f52-86bd-7390-afc3-efb797572820" xlink:to="loc_us-gaap_DefinedContributionPlanTable_019b0f52-86bd-7701-a9c6-99e0523f5173" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationAxis_019b0f52-86bd-7684-903a-daa216d3a250" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetirementPlanSponsorLocationAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DefinedContributionPlanTable_019b0f52-86bd-7701-a9c6-99e0523f5173" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationAxis_019b0f52-86bd-7684-903a-daa216d3a250" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_019b0f52-86bd-7684-903a-daa216d3a250_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_019b0f52-86bd-7684-903a-daa216d3a250" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_019b0f52-86bd-7684-903a-daa216d3a250_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanSponsorLocationDomain_019b0f52-86bd-7ec7-8f1a-dc08e82f3c54" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RetirementPlanSponsorLocationDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationAxis_019b0f52-86bd-7684-903a-daa216d3a250" xlink:to="loc_us-gaap_RetirementPlanSponsorLocationDomain_019b0f52-86bd-7ec7-8f1a-dc08e82f3c54" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticPlanMember_019b0f52-86bd-7f23-8f37-e23beb5009b1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DomesticPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_019b0f52-86bd-7ec7-8f1a-dc08e82f3c54" xlink:to="loc_us-gaap_DomesticPlanMember_019b0f52-86bd-7f23-8f37-e23beb5009b1" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019b0f52-86bd-71cd-b861-43c4c1fc5591" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DomesticPlanMember_019b0f52-86bd-7f23-8f37-e23beb5009b1" xlink:to="loc_country_US_019b0f52-86bd-71cd-b861-43c4c1fc5591" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignPlanMember_019b0f52-86bd-7478-bf6f-7e7bc4970749" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignPlanMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RetirementPlanSponsorLocationDomain_019b0f52-86bd-7ec7-8f1a-dc08e82f3c54" xlink:to="loc_us-gaap_ForeignPlanMember_019b0f52-86bd-7478-bf6f-7e7bc4970749" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis_019b0f52-86bd-7cc4-8b7d-eae875995748" 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_DefinedContributionPlanTable_019b0f52-86bd-7701-a9c6-99e0523f5173" xlink:to="loc_srt_RangeAxis_019b0f52-86bd-7cc4-8b7d-eae875995748" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0f52-86bd-7cc4-8b7d-eae875995748_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_019b0f52-86bd-7cc4-8b7d-eae875995748" xlink:to="loc_srt_RangeMember_019b0f52-86bd-7cc4-8b7d-eae875995748_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember_019b0f52-86bd-77c9-9886-0cd3a10ed4f1" 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_019b0f52-86bd-7cc4-8b7d-eae875995748" xlink:to="loc_srt_RangeMember_019b0f52-86bd-77c9-9886-0cd3a10ed4f1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember_019b0f52-86bd-79d6-ac1c-0a4cec5c2f0c" 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_019b0f52-86bd-77c9-9886-0cd3a10ed4f1" xlink:to="loc_srt_MinimumMember_019b0f52-86bd-79d6-ac1c-0a4cec5c2f0c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MaximumMember_019b0f52-86bd-7d08-be9f-8115db442751" 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_019b0f52-86bd-77c9-9886-0cd3a10ed4f1" xlink:to="loc_srt_MaximumMember_019b0f52-86bd-7d08-be9f-8115db442751" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_DefinedContributionPlanEmployeeAnnualContributionPercent_019be518-c30a-7f58-8e5d-aac7d57cad8f" xlink:href="mrvl-20260131.xsd#mrvl_DefinedContributionPlanEmployeeAnnualContributionPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_019b0f52-86bd-7390-afc3-efb797572820" xlink:to="loc_mrvl_DefinedContributionPlanEmployeeAnnualContributionPercent_019be518-c30a-7f58-8e5d-aac7d57cad8f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_019b0f52-86bd-790a-8042-9070068798fc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_019b0f52-86bd-7390-afc3-efb797572820" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerMatchingContributionPercentOfMatch_019b0f52-86bd-790a-8042-9070068798fc" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_019b0f52-86bd-7a1d-8608-209dd62e865c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_019b0f52-86bd-7390-afc3-efb797572820" xlink:to="loc_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent_019b0f52-86bd-7a1d-8608-209dd62e865c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount_019b0f52-86bd-7849-b436-8077fab2da0f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_019b0f52-86bd-7390-afc3-efb797572820" xlink:to="loc_us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeeAmount_019b0f52-86bd-7849-b436-8077fab2da0f" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_019b0f52-86bd-7489-ae80-601cfce5328d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DefinedContributionPlanDisclosureLineItems_019b0f52-86bd-7390-afc3-efb797572820" xlink:to="loc_us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount_019b0f52-86bd-7489-ae80-601cfce5328d" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/IncomeTaxesEffectiveIncomeTaxRateReconciliationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019c4879-00d7-7fb1-a66f-badf2450637d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019c4879-00d7-7512-919d-2c95e2934cf1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019c4879-00d7-7fb1-a66f-badf2450637d" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019c4879-00d7-7512-919d-2c95e2934cf1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019c4879-00d7-74d5-a54a-fdbad03a8b8c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTable_019c4879-00d7-7512-919d-2c95e2934cf1" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019c4879-00d7-74d5-a54a-fdbad03a8b8c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c4879-00d7-74d5-a54a-fdbad03a8b8c_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c4879-00d7-74d5-a54a-fdbad03a8b8c" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c4879-00d7-74d5-a54a-fdbad03a8b8c_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c4879-00d7-712b-a1c3-4a7b7990a5fa" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c4879-00d7-74d5-a54a-fdbad03a8b8c" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c4879-00d7-712b-a1c3-4a7b7990a5fa" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_019c4879-8e31-7201-9045-101b94400657" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c4879-00d7-712b-a1c3-4a7b7990a5fa" xlink:to="loc_us-gaap_ForeignCountryMember_019c4879-8e31-7201-9045-101b94400657" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_SG_019c9472-61d7-799c-9a9c-f447fd44a291" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_SG"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignCountryMember_019c4879-8e31-7201-9045-101b94400657" xlink:to="loc_country_SG_019c9472-61d7-799c-9a9c-f447fd44a291" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019c4879-00d7-7a19-aff9-9221f5dd3e50" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignTaxJurisdictionOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignCountryMember_019c4879-8e31-7201-9045-101b94400657" xlink:to="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019c4879-00d7-7a19-aff9-9221f5dd3e50" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticCountryMember_019c9474-160e-7033-a018-03e1d01b212c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DomesticCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c4879-00d7-712b-a1c3-4a7b7990a5fa" xlink:to="loc_us-gaap_DomesticCountryMember_019c9474-160e-7033-a018-03e1d01b212c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019c9474-5317-7d12-904a-55cbdd819208" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DomesticCountryMember_019c9474-160e-7033-a018-03e1d01b212c" xlink:to="loc_country_US_019c9474-5317-7d12-904a-55cbdd819208" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019c4879-00d7-7fb1-a66f-badf2450637d" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_019c4879-00d7-716b-9c9e-be6508f05d07" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate_019c4879-00d7-716b-9c9e-be6508f05d07" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_019c4879-00d7-7ec4-8b51-3becb122a53d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationStateAndLocalIncomeTaxes_019c4879-00d7-7ec4-8b51-3becb122a53d" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential_019c4879-00d7-79f9-aea4-7c96738b612c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationForeignIncomeTaxRateDifferential_019c4879-00d7-79f9-aea4-7c96738b612c" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EffectiveIncomeTaxRateReconciliationDevelopmentAndExpansionIncentiveAmount_019c945a-d4bc-74ab-9330-fec1b0dbbf8e" xlink:href="mrvl-20260131.xsd#mrvl_EffectiveIncomeTaxRateReconciliationDevelopmentAndExpansionIncentiveAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_mrvl_EffectiveIncomeTaxRateReconciliationDevelopmentAndExpansionIncentiveAmount_019c945a-d4bc-74ab-9330-fec1b0dbbf8e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationDispositionOfBusiness_019c4879-00d7-73cd-acbf-c125a5c3f9e7" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationDispositionOfBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationDispositionOfBusiness_019c4879-00d7-73cd-acbf-c125a5c3f9e7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EffectiveIncomeTaxRateReconciliationQualifiedDomesticTopUpTaxAmount_019c945c-5eb6-74b4-a064-4650a3673d4b" xlink:href="mrvl-20260131.xsd#mrvl_EffectiveIncomeTaxRateReconciliationQualifiedDomesticTopUpTaxAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_mrvl_EffectiveIncomeTaxRateReconciliationQualifiedDomesticTopUpTaxAmount_019c945c-5eb6-74b4-a064-4650a3673d4b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_019c4879-00d7-71af-bc07-530343103da8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationOtherAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationOtherAdjustments_019c4879-00d7-71af-bc07-530343103da8" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EffectiveIncomeTaxRateReconciliationSubpartFIncomeAmount_019c4879-00d7-7880-8be4-6587d269365a" xlink:href="mrvl-20260131.xsd#mrvl_EffectiveIncomeTaxRateReconciliationSubpartFIncomeAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_mrvl_EffectiveIncomeTaxRateReconciliationSubpartFIncomeAmount_019c4879-00d7-7880-8be4-6587d269365a" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationGiltiAmount_019c4879-00d7-70fb-835d-0f283508f8b0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationGiltiAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationGiltiAmount_019c4879-00d7-70fb-835d-0f283508f8b0" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherAmount_019c4879-00d7-7405-8932-3138190bbb5e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherAmount_019c4879-00d7-7405-8932-3138190bbb5e" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCreditsResearch_019c4879-00d7-7b76-b53f-a5cf46a6b475" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationTaxCreditsResearch"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCreditsResearch_019c4879-00d7-7b76-b53f-a5cf46a6b475" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxCreditsOther_019c9458-d60c-70df-865d-c5757f848b22" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationTaxCreditsOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxCreditsOther_019c9458-d60c-70df-865d-c5757f848b22" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_019c4879-00d7-71ed-b69a-772a57a1f078" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance_019c4879-00d7-71ed-b69a-772a57a1f078" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_019c9459-5d68-76a6-91bb-0f4f8cb456b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost_019c9459-5d68-76a6-91bb-0f4f8cb456b6" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_019c4879-00d7-743d-84e8-737fb528f05d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationNondeductibleExpenseOther_019c4879-00d7-743d-84e8-737fb528f05d" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxReconciliationTaxContingencies_019c4879-00d7-71d1-a616-31596391b256" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxReconciliationTaxContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxReconciliationTaxContingencies_019c4879-00d7-71d1-a616-31596391b256" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EffectiveIncomeTaxRateReconciliationOtherAdjustmentsDeemedRoyaltyAmount_019c945d-64a6-7a16-886f-d1ab9f360cbd" xlink:href="mrvl-20260131.xsd#mrvl_EffectiveIncomeTaxRateReconciliationOtherAdjustmentsDeemedRoyaltyAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_mrvl_EffectiveIncomeTaxRateReconciliationOtherAdjustmentsDeemedRoyaltyAmount_019c945d-64a6-7a16-886f-d1ab9f360cbd" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019c4879-00d7-7aff-b6f4-89b12c7df533" 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_IncomeTaxExpenseBenefitContinuingOperationsIncomeTaxReconciliationAbstract_019c487a-0851-7cf9-9f61-57417882129b" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019c4879-00d7-7aff-b6f4-89b12c7df533" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateReconciliationLineItems_019c4879-00d7-7fb1-a66f-badf2450637d" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_019c487b-e79c-78f1-bada-520be50cf6b6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate_019c487b-e79c-78f1-bada-520be50cf6b6" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_019c487b-e79c-7a6e-91f8-2c80dc116f1a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes_019c487b-e79c-7a6e-91f8-2c80dc116f1a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_019c487b-e79c-7961-b161-e63ba912c767" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential_019c487b-e79c-7961-b161-e63ba912c767" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EffectiveIncomeTaxRateReconciliationDevelopmentAndExpansionIncentivePercent_019c9498-8a22-78e1-bbc2-f869e4e72279" xlink:href="mrvl-20260131.xsd#mrvl_EffectiveIncomeTaxRateReconciliationDevelopmentAndExpansionIncentivePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_mrvl_EffectiveIncomeTaxRateReconciliationDevelopmentAndExpansionIncentivePercent_019c9498-8a22-78e1-bbc2-f869e4e72279" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationDispositionOfBusiness_019c487b-e79c-70a4-bd99-a6cf92dbed49" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationDispositionOfBusiness"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationDispositionOfBusiness_019c487b-e79c-70a4-bd99-a6cf92dbed49" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EffectiveIncomeTaxRateReconciliationQualifiedDomesticTopUpTaxPercent_019c9496-d7d4-7fdf-9e4d-a3f55c4fabf5" xlink:href="mrvl-20260131.xsd#mrvl_EffectiveIncomeTaxRateReconciliationQualifiedDomesticTopUpTaxPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_mrvl_EffectiveIncomeTaxRateReconciliationQualifiedDomesticTopUpTaxPercent_019c9496-d7d4-7fdf-9e4d-a3f55c4fabf5" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_019c487b-e79c-7f9b-95b4-c2a597abaaf5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationOtherAdjustments_019c487b-e79c-7f9b-95b4-c2a597abaaf5" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EffectiveIncomeTaxRateReconciliationSubpartFIncomePercent_019c487b-e79c-7b86-aac1-f3acdd667147" xlink:href="mrvl-20260131.xsd#mrvl_EffectiveIncomeTaxRateReconciliationSubpartFIncomePercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_mrvl_EffectiveIncomeTaxRateReconciliationSubpartFIncomePercent_019c487b-e79c-7b86-aac1-f3acdd667147" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationGiltiPercent_019c487b-e79c-7680-b9fc-555e07b8e423" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationGiltiPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationGiltiPercent_019c487b-e79c-7680-b9fc-555e07b8e423" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherPercent_019c487b-e79c-7195-b0ad-2efb530f4d1b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationCrossBorderOtherPercent_019c487b-e79c-7195-b0ad-2efb530f4d1b" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_019c487b-e79c-7f4a-bab2-9980df4d46f2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsResearch_019c487b-e79c-7f4a-bab2-9980df4d46f2" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther_019c949a-838e-7d7a-b31c-3915375a7db0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxCreditsOther_019c949a-838e-7d7a-b31c-3915375a7db0" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_019c487b-e79c-7340-b063-69de787d7f43" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationChangeInDeferredTaxAssetsValuationAllowance_019c487b-e79c-7340-b063-69de787d7f43" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_019c949c-f9d2-709f-832f-08a5bdac4680" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseShareBasedCompensationCost_019c949c-f9d2-709f-832f-08a5bdac4680" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_019c487b-e79c-7733-ae39-1a0f06a4f4d5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationNondeductibleExpenseOther_019c487b-e79c-7733-ae39-1a0f06a4f4d5" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies_019c487b-e79c-76c7-8e2e-e219bf4aa4b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateReconciliationTaxContingencies_019c487b-e79c-76c7-8e2e-e219bf4aa4b9" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EffectiveIncomeTaxRateReconciliationOtherAdjustmentsDeemedRoyaltyPercent_019c487b-e79c-7b25-b009-1e006e930871" xlink:href="mrvl-20260131.xsd#mrvl_EffectiveIncomeTaxRateReconciliationOtherAdjustmentsDeemedRoyaltyPercent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_mrvl_EffectiveIncomeTaxRateReconciliationOtherAdjustmentsDeemedRoyaltyPercent_019c487b-e79c-7b25-b009-1e006e930871" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_019c487b-e79c-7aca-975e-3676c1994513" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperationsTaxRateReconciliationAbstract_019c487b-c139-7613-960b-4a34c008953e" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_019c487b-e79c-7aca-975e-3676c1994513" xlink:type="arc" order="18"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/IncomeTaxesNarrativeDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#IncomeTaxesNarrativeDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/IncomeTaxesNarrativeDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:href="mrvl-20260131.xsd#mrvl_IncomeTaxesLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_IncomeTaxesTable_019b0f52-86bd-7845-8310-0f37ee6ce70f" xlink:href="mrvl-20260131.xsd#mrvl_IncomeTaxesTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_mrvl_IncomeTaxesTable_019b0f52-86bd-7845-8310-0f37ee6ce70f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019b0f52-86bd-70d8-b815-c2573a2221ca" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mrvl_IncomeTaxesTable_019b0f52-86bd-7845-8310-0f37ee6ce70f" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019b0f52-86bd-70d8-b815-c2573a2221ca" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019b0f52-86bd-70d8-b815-c2573a2221ca_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019b0f52-86bd-70d8-b815-c2573a2221ca" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019b0f52-86bd-70d8-b815-c2573a2221ca_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019b0f52-86bd-78d2-96ff-b31e221a3e6f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019b0f52-86bd-70d8-b815-c2573a2221ca" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019b0f52-86bd-78d2-96ff-b31e221a3e6f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DomesticCountryMember_019b0f52-86bd-7f40-8c5a-056eb0d5334b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_DomesticCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019b0f52-86bd-78d2-96ff-b31e221a3e6f" xlink:to="loc_us-gaap_DomesticCountryMember_019b0f52-86bd-7f40-8c5a-056eb0d5334b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StateAndLocalJurisdictionMember_019b0f52-86bd-7327-b39c-ed8f4931329c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StateAndLocalJurisdictionMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019b0f52-86bd-78d2-96ff-b31e221a3e6f" xlink:to="loc_us-gaap_StateAndLocalJurisdictionMember_019b0f52-86bd-7327-b39c-ed8f4931329c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_019b0f52-86bd-7015-b502-8d9bd840f1ba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019b0f52-86bd-78d2-96ff-b31e221a3e6f" xlink:to="loc_us-gaap_ForeignCountryMember_019b0f52-86bd-7015-b502-8d9bd840f1ba" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019b0f52-86bd-7b8a-b429-9bd45943a8a9" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mrvl_IncomeTaxesTable_019b0f52-86bd-7845-8310-0f37ee6ce70f" xlink:to="loc_srt_StatementGeographicalAxis_019b0f52-86bd-7b8a-b429-9bd45943a8a9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7b8a-b429-9bd45943a8a9_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019b0f52-86bd-7b8a-b429-9bd45943a8a9" xlink:to="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7b8a-b429-9bd45943a8a9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7011-a3fc-ea7daa3afaf1" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019b0f52-86bd-7b8a-b429-9bd45943a8a9" xlink:to="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7011-a3fc-ea7daa3afaf1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_stpr_CA_019b0f52-86bd-7125-bee7-d913546e4684" xlink:href="https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd#stpr_CA"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7011-a3fc-ea7daa3afaf1" xlink:to="loc_stpr_CA_019b0f52-86bd-7125-bee7-d913546e4684" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_OtherStateMember_019b0f52-86bd-7300-91e2-19b0bf5a1873" xlink:href="mrvl-20260131.xsd#mrvl_OtherStateMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7011-a3fc-ea7daa3afaf1" xlink:to="loc_mrvl_OtherStateMember_019b0f52-86bd-7300-91e2-19b0bf5a1873" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardAxis_019b0f52-86bd-775c-b1e3-c155809827ff" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mrvl_IncomeTaxesTable_019b0f52-86bd-7845-8310-0f37ee6ce70f" xlink:to="loc_us-gaap_TaxCreditCarryforwardAxis_019b0f52-86bd-775c-b1e3-c155809827ff" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_019b0f52-86bd-775c-b1e3-c155809827ff_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_019b0f52-86bd-775c-b1e3-c155809827ff" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_019b0f52-86bd-775c-b1e3-c155809827ff_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardNameDomain_019b0f52-86bd-798c-a78f-b4fa6dd975a1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_TaxCreditCarryforwardAxis_019b0f52-86bd-775c-b1e3-c155809827ff" xlink:to="loc_us-gaap_TaxCreditCarryforwardNameDomain_019b0f52-86bd-798c-a78f-b4fa6dd975a1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchMember_019b0f52-86bd-7215-8426-78ae1536fe3b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TaxCreditCarryforwardNameDomain_019b0f52-86bd-798c-a78f-b4fa6dd975a1" xlink:to="loc_us-gaap_ResearchMember_019b0f52-86bd-7215-8426-78ae1536fe3b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ResearchandInvestmentTaxCreditCarryforwardMember_019b0f52-86bd-75d6-8000-5c4272630021" xlink:href="mrvl-20260131.xsd#mrvl_ResearchandInvestmentTaxCreditCarryforwardMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TaxCreditCarryforwardNameDomain_019b0f52-86bd-798c-a78f-b4fa6dd975a1" xlink:to="loc_mrvl_ResearchandInvestmentTaxCreditCarryforwardMember_019b0f52-86bd-75d6-8000-5c4272630021" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameAxis_019b0f52-86bd-7dc3-9814-2e12ca3c81ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_mrvl_IncomeTaxesTable_019b0f52-86bd-7845-8310-0f37ee6ce70f" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameAxis_019b0f52-86bd-7dc3-9814-2e12ca3c81ae" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameDomain_019b0f52-86bd-7dc3-9814-2e12ca3c81ae_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameAxis_019b0f52-86bd-7dc3-9814-2e12ca3c81ae" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameDomain_019b0f52-86bd-7dc3-9814-2e12ca3c81ae_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityNameDomain_019b0f52-86bd-79ce-8f3c-0910f9bffe84" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameAxis_019b0f52-86bd-7dc3-9814-2e12ca3c81ae" xlink:to="loc_us-gaap_IncomeTaxAuthorityNameDomain_019b0f52-86bd-79ce-8f3c-0910f9bffe84" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SingaporeDevelopmentAndExpansionIncentiveMember_019c9466-9699-7f62-9154-e73186a106c6" xlink:href="mrvl-20260131.xsd#mrvl_SingaporeDevelopmentAndExpansionIncentiveMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameDomain_019b0f52-86bd-79ce-8f3c-0910f9bffe84" xlink:to="loc_mrvl_SingaporeDevelopmentAndExpansionIncentiveMember_019c9466-9699-7f62-9154-e73186a106c6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_IsraeliEncouragementOfInvestmentsLawSpecialTechnologyEnterpriseRegimeMember_019b0f52-86bd-7a76-9ef1-43af8459eb90" xlink:href="mrvl-20260131.xsd#mrvl_IsraeliEncouragementOfInvestmentsLawSpecialTechnologyEnterpriseRegimeMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityNameDomain_019b0f52-86bd-79ce-8f3c-0910f9bffe84" xlink:to="loc_mrvl_IsraeliEncouragementOfInvestmentsLawSpecialTechnologyEnterpriseRegimeMember_019b0f52-86bd-7a76-9ef1-43af8459eb90" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019c94b2-64b3-7274-84f6-46b916dd5b86" 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_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019c94b2-64b3-7274-84f6-46b916dd5b86" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_019c94b3-2cc0-7494-825c-3725cd5cc340" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations_019c94b3-2cc0-7494-825c-3725cd5cc340" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_019b0f52-86bd-7ad5-a9f7-3b999395f129" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_ValuationAllowanceDeferredTaxAssetChangeInAmount_019b0f52-86bd-7ad5-a9f7-3b999395f129" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLossCarryforwards_019b0f52-86bd-7404-be8a-ca9cd43751ad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLossCarryforwards"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_OperatingLossCarryforwards_019b0f52-86bd-7404-be8a-ca9cd43751ad" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxCreditCarryforwardAmount_019b0f52-86bd-7779-b836-0e7118ec1427" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TaxCreditCarryforwardAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_TaxCreditCarryforwardAmount_019b0f52-86bd-7779-b836-0e7118ec1427" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefits_019b0f52-86bd-747c-a707-20ef5fdf6865" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefits"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_UnrecognizedTaxBenefits_019b0f52-86bd-747c-a707-20ef5fdf6865" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_019b0f52-86bd-737d-88d3-9d95fe74f77c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate_019b0f52-86bd-737d-88d3-9d95fe74f77c" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_UnrecognizedTaxBenefitsThatWouldImpactDeferredTaxAssets_019b0f52-86bd-7864-bf63-b3e6eb936952" xlink:href="mrvl-20260131.xsd#mrvl_UnrecognizedTaxBenefitsThatWouldImpactDeferredTaxAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_mrvl_UnrecognizedTaxBenefitsThatWouldImpactDeferredTaxAssets_019b0f52-86bd-7864-bf63-b3e6eb936952" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_019b0f52-86bd-79e0-b0fb-08eedbe02584" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued_019b0f52-86bd-79e0-b0fb-08eedbe02584" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_019b0f52-86bd-77ed-9bb1-66693d79292c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense_019b0f52-86bd-77ed-9bb1-66693d79292c" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxHolidayAggregateDollarAmount_019b0f52-86bd-7018-a5bd-265fc72e6d21" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxHolidayAggregateDollarAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_IncomeTaxHolidayAggregateDollarAmount_019b0f52-86bd-7018-a5bd-265fc72e6d21" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare_019b0f52-86bd-7c4c-a614-2bb0ec0287d3" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_IncomeTaxHolidayIncomeTaxBenefitsPerShare_019b0f52-86bd-7c4c-a614-2bb0ec0287d3" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_019cc2c8-f83e-730a-90b7-ab96c28d6ad1" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_UndistributedEarningsOfForeignSubsidiaries"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_UndistributedEarningsOfForeignSubsidiaries_019cc2c8-f83e-730a-90b7-ab96c28d6ad1" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_019cc2c9-6990-7371-8b43-6b3608230b0a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_IncomeTaxesLineItems_019b0f52-86bd-7e5a-b0fe-b9b9ddab88eb" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_019cc2c9-6990-7371-8b43-6b3608230b0a" xlink:type="arc" order="13"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/IncomeTaxesIncomeTaxesPaidNetofRefundsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#IncomeTaxesIncomeTaxesPaidNetofRefundsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/IncomeTaxesIncomeTaxesPaidNetofRefundsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c94e6-d519-7278-be39-3673f5d02461" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c94e6-d519-7ed6-9db1-7e2a38a3f23c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidByIndividualJurisdictionTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c94e6-d519-7278-be39-3673f5d02461" xlink:to="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c94e6-d519-7ed6-9db1-7e2a38a3f23c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityAxis_019c94e6-d519-7e8e-8ff3-86bf9c7d08d9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionTable_019c94e6-d519-7ed6-9db1-7e2a38a3f23c" xlink:to="loc_us-gaap_IncomeTaxAuthorityAxis_019c94e6-d519-7e8e-8ff3-86bf9c7d08d9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c94e6-d519-7e8e-8ff3-86bf9c7d08d9_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c94e6-d519-7e8e-8ff3-86bf9c7d08d9" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c94e6-d519-7e8e-8ff3-86bf9c7d08d9_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxAuthorityDomain_019c94e6-d519-76e4-ab9f-68aaba4f1204" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxAuthorityDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_IncomeTaxAuthorityAxis_019c94e6-d519-7e8e-8ff3-86bf9c7d08d9" xlink:to="loc_us-gaap_IncomeTaxAuthorityDomain_019c94e6-d519-76e4-ab9f-68aaba4f1204" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignCountryMember_019c94e6-d519-798f-957d-430667ed3da4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignCountryMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxAuthorityDomain_019c94e6-d519-76e4-ab9f-68aaba4f1204" xlink:to="loc_us-gaap_ForeignCountryMember_019c94e6-d519-798f-957d-430667ed3da4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_SG_019c94e6-d519-7d5a-9aae-888b43a7d18c" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_SG"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignCountryMember_019c94e6-d519-798f-957d-430667ed3da4" xlink:to="loc_country_SG_019c94e6-d519-7d5a-9aae-888b43a7d18c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_IN_019c94e6-d519-7e67-96d3-8d9273df53a3" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_IN"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignCountryMember_019c94e6-d519-798f-957d-430667ed3da4" xlink:to="loc_country_IN_019c94e6-d519-7e67-96d3-8d9273df53a3" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_IL_019c94e6-d519-7bf5-8784-db601d236bea" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_IL"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignCountryMember_019c94e6-d519-798f-957d-430667ed3da4" xlink:to="loc_country_IL_019c94e6-d519-7bf5-8784-db601d236bea" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019c94e6-d519-7587-81e2-9b5dd8bae36d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ForeignTaxJurisdictionOtherMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ForeignCountryMember_019c94e6-d519-798f-957d-430667ed3da4" xlink:to="loc_us-gaap_ForeignTaxJurisdictionOtherMember_019c94e6-d519-7587-81e2-9b5dd8bae36d" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidFederalAfterRefundReceived_019c94e6-d519-7d50-94d3-4210e802ee94" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidFederalAfterRefundReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c94e6-d519-7278-be39-3673f5d02461" xlink:to="loc_us-gaap_IncomeTaxPaidFederalAfterRefundReceived_019c94e6-d519-7d50-94d3-4210e802ee94" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived_019c94e6-d519-75ed-a1cb-632af7e4e002" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c94e6-d519-7278-be39-3673f5d02461" xlink:to="loc_us-gaap_IncomeTaxPaidStateAndLocalAfterRefundReceived_019c94e6-d519-75ed-a1cb-632af7e4e002" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceivedAbstract_019c94e6-d519-78d8-8003-ee59be4f8105" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidForeignAfterRefundReceivedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c94e6-d519-7278-be39-3673f5d02461" xlink:to="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceivedAbstract_019c94e6-d519-78d8-8003-ee59be4f8105" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceived_019c94e6-d519-7e81-91f3-2fe50da1f3ab" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxPaidForeignAfterRefundReceived"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceivedAbstract_019c94e6-d519-78d8-8003-ee59be4f8105" xlink:to="loc_us-gaap_IncomeTaxPaidForeignAfterRefundReceived_019c94e6-d519-7e81-91f3-2fe50da1f3ab" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesPaidNet_019c94e6-d519-7024-99b7-1171a7e0f324" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeTaxesPaidNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeTaxPaidByIndividualJurisdictionLineItems_019c94e6-d519-7278-be39-3673f5d02461" xlink:to="loc_us-gaap_IncomeTaxesPaidNet_019c94e6-d519-7024-99b7-1171a7e0f324" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/NetIncomeLossPerShareComputationofBasicandDilutedNetIncomeLossPerShareDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#NetIncomeLossPerShareComputationofBasicandDilutedNetIncomeLossPerShareDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/NetIncomeLossPerShareComputationofBasicandDilutedNetIncomeLossPerShareDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019c4743-bfee-7a65-a629-89ab302e4cfc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019c4743-bfee-70c5-8e09-58ef5846175c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019c4743-bfee-7a65-a629-89ab302e4cfc" xlink:to="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019c4743-bfee-70c5-8e09-58ef5846175c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019c4743-bfee-7fa5-99b9-5889d62a1a71" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfAntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareTable_019c4743-bfee-70c5-8e09-58ef5846175c" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019c4743-bfee-7fa5-99b9-5889d62a1a71" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019c4743-bfee-7fa5-99b9-5889d62a1a71_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019c4743-bfee-7fa5-99b9-5889d62a1a71" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019c4743-bfee-7fa5-99b9-5889d62a1a71_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019c4743-bfee-7ce5-b0ec-a5f678751d29" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis_019c4743-bfee-7fa5-99b9-5889d62a1a71" xlink:to="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019c4743-bfee-7ce5-b0ec-a5f678751d29" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ShareBasedPaymentArrangementAndWarrantsMember_019c4743-bfee-7ae0-abfd-79a3819ca304" xlink:href="mrvl-20260131.xsd#mrvl_ShareBasedPaymentArrangementAndWarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesNameDomain_019c4743-bfee-7ce5-b0ec-a5f678751d29" xlink:to="loc_mrvl_ShareBasedPaymentArrangementAndWarrantsMember_019c4743-bfee-7ae0-abfd-79a3819ca304" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAbstract_019b0f52-86bd-7465-b327-5ffd3de2da41" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_NetIncomeLossAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019c4743-bfee-7a65-a629-89ab302e4cfc" xlink:to="loc_us-gaap_NetIncomeLossAbstract_019b0f52-86bd-7465-b327-5ffd3de2da41" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019b0f52-86bd-7b18-b8ef-f6166888c120" 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_NetIncomeLossAbstract_019b0f52-86bd-7465-b327-5ffd3de2da41" xlink:to="loc_us-gaap_NetIncomeLoss_019b0f52-86bd-7b18-b8ef-f6166888c120" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_019b0f52-86bd-7d8b-a501-c3a15990c765" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019c4743-bfee-7a65-a629-89ab302e4cfc" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_019b0f52-86bd-7d8b-a501-c3a15990c765" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019b0f52-86bd-7bb5-992b-193bda81daad" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_019b0f52-86bd-7d8b-a501-c3a15990c765" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_019b0f52-86bd-7bb5-992b-193bda81daad" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019b0f52-86bd-7d80-80cc-6dd6292162ae" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019c4743-bfee-7a65-a629-89ab302e4cfc" xlink:to="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019b0f52-86bd-7d80-80cc-6dd6292162ae" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019b0f52-86bd-79bb-87e5-6e8c96f5ec31" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019b0f52-86bd-7d80-80cc-6dd6292162ae" xlink:to="loc_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_019b0f52-86bd-79bb-87e5-6e8c96f5ec31" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019b0f52-86bd-78cf-a4ee-f6d5a21b53b8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingDilutedDisclosureItemsAbstract_019b0f52-86bd-7d80-80cc-6dd6292162ae" xlink:to="loc_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_019b0f52-86bd-78cf-a4ee-f6d5a21b53b8" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EPSPerShareBasicAndDilutedAbstract_019b0f52-86bd-7e9a-ac1f-1234f019baea" xlink:href="mrvl-20260131.xsd#mrvl_EPSPerShareBasicAndDilutedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019c4743-bfee-7a65-a629-89ab302e4cfc" xlink:to="loc_mrvl_EPSPerShareBasicAndDilutedAbstract_019b0f52-86bd-7e9a-ac1f-1234f019baea" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_019b0f52-86bd-7a54-a39e-aac9ce69960b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_EPSPerShareBasicAndDilutedAbstract_019b0f52-86bd-7e9a-ac1f-1234f019baea" xlink:to="loc_us-gaap_EarningsPerShareBasic_019b0f52-86bd-7a54-a39e-aac9ce69960b" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_019b0f52-86bd-7405-b1e4-94fa3031dd8e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_mrvl_EPSPerShareBasicAndDilutedAbstract_019b0f52-86bd-7e9a-ac1f-1234f019baea" xlink:to="loc_us-gaap_EarningsPerShareDiluted_019b0f52-86bd-7405-b1e4-94fa3031dd8e" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019c4744-c2bc-7c19-9d6d-1050194cb08c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareLineItems_019c4743-bfee-7a65-a629-89ab302e4cfc" xlink:to="loc_us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount_019c4744-c2bc-7c19-9d6d-1050194cb08c" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SegmentandGeographicInformationSignificantSegmentExpensesandOtherExpenseDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SegmentandGeographicInformationSignificantSegmentExpensesandOtherExpenseDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SegmentandGeographicInformationSignificantSegmentExpensesandOtherExpenseDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems_019b0f52-86bd-7310-9714-a874a7c48f3e" 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_019b0f52-86bd-7923-9974-223d1a05646f" 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_019b0f52-86bd-7310-9714-a874a7c48f3e" xlink:to="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTable_019b0f52-86bd-7923-9974-223d1a05646f" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_019b0f52-86bd-7909-984b-7de3664a8d75" 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_019b0f52-86bd-7923-9974-223d1a05646f" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_019b0f52-86bd-7909-984b-7de3664a8d75" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019b0f52-86bd-7909-984b-7de3664a8d75_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_019b0f52-86bd-7909-984b-7de3664a8d75" xlink:to="loc_us-gaap_SegmentDomain_019b0f52-86bd-7909-984b-7de3664a8d75_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentDomain_019b0f52-86bd-745e-977d-da8f68a26878" 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_019b0f52-86bd-7909-984b-7de3664a8d75" xlink:to="loc_us-gaap_SegmentDomain_019b0f52-86bd-745e-977d-da8f68a26878" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ReportableSegmentMember_019b0f52-86bd-71dd-a3f8-4a455496ce02" xlink:href="mrvl-20260131.xsd#mrvl_ReportableSegmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_019b0f52-86bd-745e-977d-da8f68a26878" xlink:to="loc_mrvl_ReportableSegmentMember_019b0f52-86bd-71dd-a3f8-4a455496ce02" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_019b0f52-86bd-703b-bb10-46f0278cb8d1" 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_019b0f52-86bd-7923-9974-223d1a05646f" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_019b0f52-86bd-703b-bb10-46f0278cb8d1" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-703b-bb10-46f0278cb8d1_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_019b0f52-86bd-703b-bb10-46f0278cb8d1" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-703b-bb10-46f0278cb8d1_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-74e7-b582-f571e5d0e558" 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_019b0f52-86bd-703b-bb10-46f0278cb8d1" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-74e7-b582-f571e5d0e558" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_019b0f52-86bd-722d-b847-31173f3bd62e" 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_019b0f52-86bd-74e7-b582-f571e5d0e558" xlink:to="loc_us-gaap_CostOfSalesMember_019b0f52-86bd-722d-b847-31173f3bd62e" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingExpenseMember_019b0f52-86bd-71d9-a81d-0ae340a006b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019b0f52-86bd-74e7-b582-f571e5d0e558" xlink:to="loc_us-gaap_OperatingExpenseMember_019b0f52-86bd-71d9-a81d-0ae340a006b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019b0f52-86bd-717a-98ab-0d720b46a8f6" 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_019b0f52-86bd-7310-9714-a874a7c48f3e" xlink:to="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_019b0f52-86bd-717a-98ab-0d720b46a8f6" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems_019b0f52-86bd-7310-9714-a874a7c48f3e" xlink:to="loc_us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProductionAndDistributionCosts_019b0f52-86bd-77ce-8175-5ecf3deeba97" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ProductionAndDistributionCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_us-gaap_ProductionAndDistributionCosts_019b0f52-86bd-77ce-8175-5ecf3deeba97" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LaborAndRelatedExpense_019b0f52-86bd-7516-bb4a-09bba5355536" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LaborAndRelatedExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_us-gaap_LaborAndRelatedExpense_019b0f52-86bd-7516-bb4a-09bba5355536" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_019b0f52-86bd-7a7f-b9da-59c5d8c38bba" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_019b0f52-86bd-7a7f-b9da-59c5d8c38bba" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019b0f52-86bd-7e38-a061-c3413e1bcdb9" 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_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_us-gaap_RestructuringCostsAndAssetImpairmentCharges_019b0f52-86bd-7e38-a061-c3413e1bcdb9" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllocatedShareBasedCompensationExpense_019b0f52-86bd-7a25-8cff-8e6ca6ca92d7" 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_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_us-gaap_AllocatedShareBasedCompensationExpense_019b0f52-86bd-7a25-8cff-8e6ca6ca92d7" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_EngineeringDesignRelatedCosts_019b0f52-86bd-7191-9d99-a36661795882" xlink:href="mrvl-20260131.xsd#mrvl_EngineeringDesignRelatedCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_mrvl_EngineeringDesignRelatedCosts_019b0f52-86bd-7191-9d99-a36661795882" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpenseNonoperating_019b0f52-86bd-7616-bb27-81a9d33a9053" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InterestExpenseNonoperating"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_us-gaap_InterestExpenseNonoperating_019b0f52-86bd-7616-bb27-81a9d33a9053" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_019b0f52-86bd-7413-aed5-e7a88d9b5146" 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_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_019b0f52-86bd-7413-aed5-e7a88d9b5146" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingOtherItemAmount_019b0f52-86bd-7873-9fcc-597dac65b3a1" 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_ReconciliationFromSegmentTotalsToConsolidatedAbstract_019b0f52-86bd-7765-976a-e8154665c831" xlink:to="loc_us-gaap_SegmentReportingOtherItemAmount_019b0f52-86bd-7873-9fcc-597dac65b3a1" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_019b0f52-86bd-740f-815e-1fce254537f2" 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_019b0f52-86bd-7310-9714-a874a7c48f3e" xlink:to="loc_us-gaap_NetIncomeLoss_019b0f52-86bd-740f-815e-1fce254537f2" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SegmentandGeographicInformationLongLivedAssetInformationDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SegmentandGeographicInformationLongLivedAssetInformationDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SegmentandGeographicInformationLongLivedAssetInformationDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_019b0f52-86bd-71ab-b0c4-e50d7e153930" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_019b0f52-86bd-7f32-a448-cd6e3a69808b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_019b0f52-86bd-71ab-b0c4-e50d7e153930" xlink:to="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_019b0f52-86bd-7f32-a448-cd6e3a69808b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementGeographicalAxis_019b0f52-86bd-7961-bef2-aa9e40a8e8ef" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_StatementGeographicalAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfRevenuesFromExternalCustomersAndLongLivedAssetsTable_019b0f52-86bd-7f32-a448-cd6e3a69808b" xlink:to="loc_srt_StatementGeographicalAxis_019b0f52-86bd-7961-bef2-aa9e40a8e8ef" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7961-bef2-aa9e40a8e8ef_default" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_StatementGeographicalAxis_019b0f52-86bd-7961-bef2-aa9e40a8e8ef" xlink:to="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7961-bef2-aa9e40a8e8ef_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7559-a912-b931fd65bbd4" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_SegmentGeographicalDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_StatementGeographicalAxis_019b0f52-86bd-7961-bef2-aa9e40a8e8ef" xlink:to="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7559-a912-b931fd65bbd4" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_US_019b0f52-86bd-7ad5-a68e-664312ca1395" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_US"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7559-a912-b931fd65bbd4" xlink:to="loc_country_US_019b0f52-86bd-7ad5-a68e-664312ca1395" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_country_SG_019b0f52-86bd-7986-817d-29ed778ef849" xlink:href="https://xbrl.sec.gov/country/2025/country-2025.xsd#country_SG"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7559-a912-b931fd65bbd4" xlink:to="loc_country_SG_019b0f52-86bd-7986-817d-29ed778ef849" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_OtherCountriesMember_019b0f52-86bd-7914-a485-e9ee5d290b81" xlink:href="mrvl-20260131.xsd#mrvl_OtherCountriesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_SegmentGeographicalDomain_019b0f52-86bd-7559-a912-b931fd65bbd4" xlink:to="loc_mrvl_OtherCountriesMember_019b0f52-86bd-7914-a485-e9ee5d290b81" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019b0f52-86bd-75b8-9e3e-eb4710267e8b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems_019b0f52-86bd-71ab-b0c4-e50d7e153930" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019b0f52-86bd-75b8-9e3e-eb4710267e8b" xlink:type="arc" order="0"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SupplementalFinancialInformationPropertyandEquipmentNetDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SupplementalFinancialInformationPropertyandEquipmentNetDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SupplementalFinancialInformationPropertyandEquipmentNetDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-86bd-7ede-8417-f13eb77a0b25" 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_019b0f52-86bd-7ea7-9a6c-5bee4b8754e2" 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_019b0f52-86bd-7ede-8417-f13eb77a0b25" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019b0f52-86bd-7ea7-9a6c-5bee4b8754e2" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019b0f52-86bd-7119-931b-b53c06159e85" 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_019b0f52-86bd-7ea7-9a6c-5bee4b8754e2" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis_019b0f52-86bd-7119-931b-b53c06159e85" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-86bd-7119-931b-b53c06159e85_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_019b0f52-86bd-7119-931b-b53c06159e85" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-86bd-7119-931b-b53c06159e85_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-86bd-7afe-9e3b-f2bc82d8c8d7" 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_019b0f52-86bd-7119-931b-b53c06159e85" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-86bd-7afe-9e3b-f2bc82d8c8d7" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MachineryAndEquipmentMember_019b0f52-86bd-7c34-af91-c10273008e0b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MachineryAndEquipmentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-86bd-7afe-9e3b-f2bc82d8c8d7" xlink:to="loc_us-gaap_MachineryAndEquipmentMember_019b0f52-86bd-7c34-af91-c10273008e0b" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LandBuildingsAndImprovementsMember_019b4ff9-ccb9-7bf3-99bb-71d0d5ffe79a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LandBuildingsAndImprovementsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-86bd-7afe-9e3b-f2bc82d8c8d7" xlink:to="loc_us-gaap_LandBuildingsAndImprovementsMember_019b4ff9-ccb9-7bf3-99bb-71d0d5ffe79a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_019b0f52-86bd-7825-af20-15362d6b2ab9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SoftwareAndSoftwareDevelopmentCostsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain_019b0f52-86bd-7afe-9e3b-f2bc82d8c8d7" xlink:to="loc_us-gaap_SoftwareAndSoftwareDevelopmentCostsMember_019b0f52-86bd-7825-af20-15362d6b2ab9" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FurnitureAndFixturesMember_019b0f52-86bd-7df5-8de2-226d8d89107e" 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_019b0f52-86bd-7afe-9e3b-f2bc82d8c8d7" xlink:to="loc_us-gaap_FurnitureAndFixturesMember_019b0f52-86bd-7df5-8de2-226d8d89107e" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_019b0f52-86bd-701c-8b5e-79d3720ea92a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-86bd-7ede-8417-f13eb77a0b25" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_019b0f52-86bd-701c-8b5e-79d3720ea92a" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019b0f52-86bd-7dc5-a837-21a105e586b9" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-86bd-7ede-8417-f13eb77a0b25" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_019b0f52-86bd-7dc5-a837-21a105e586b9" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_019b0f52-86bd-755e-9c75-a2d30a577353" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-86bd-7ede-8417-f13eb77a0b25" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_019b0f52-86bd-755e-9c75-a2d30a577353" xlink:type="arc" order="2"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SupplementalFinancialInformationOtherNonCurrentAssetsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SupplementalFinancialInformationOtherNonCurrentAssetsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SupplementalFinancialInformationOtherNonCurrentAssetsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-86bd-718d-b460-289a93342d06" 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_019b0f52-86bd-793c-8324-cbbd7a8e3c34" 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_019b0f52-86bd-718d-b460-289a93342d06" xlink:to="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019b0f52-86bd-793c-8324-cbbd7a8e3c34" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-86bd-7a5b-b070-e783949bee4f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfPropertyPlantAndEquipmentTable_019b0f52-86bd-793c-8324-cbbd7a8e3c34" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-86bd-7a5b-b070-e783949bee4f" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-86bd-7a5b-b070-e783949bee4f_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-86bd-7a5b-b070-e783949bee4f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-86bd-7a5b-b070-e783949bee4f_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-86bd-7ffa-a6e8-5a837cc24e20" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis_019b0f52-86bd-7a5b-b070-e783949bee4f" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-86bd-7ffa-a6e8-5a837cc24e20" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_TechnologyAndOtherLicensesMember_019b0f52-86bd-7861-9756-831d86a2d4cd" xlink:href="mrvl-20260131.xsd#mrvl_TechnologyAndOtherLicensesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsMajorClassNameDomain_019b0f52-86bd-7ffa-a6e8-5a837cc24e20" xlink:to="loc_mrvl_TechnologyAndOtherLicensesMember_019b0f52-86bd-7861-9756-831d86a2d4cd" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrentAbstract"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-86bd-718d-b460-289a93342d06" xlink:to="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseNoncurrent_019b0f52-86bd-79c0-aa68-f20571c8e5db" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:to="loc_us-gaap_PrepaidExpenseNoncurrent_019b0f52-86bd-79c0-aa68-f20571c8e5db" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_TechnologyLicenses_019b0f52-86bd-7c4d-a82d-ef2346e0317c" xlink:href="mrvl-20260131.xsd#mrvl_TechnologyLicenses"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:to="loc_mrvl_TechnologyLicenses_019b0f52-86bd-7c4d-a82d-ef2346e0317c" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_019b0f52-86bd-7703-8112-6ad9e1b33e4d" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAssetStatementOfFinancialPositionExtensibleList_019b0f52-86bd-7703-8112-6ad9e1b33e4d" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseRightOfUseAsset_019b0f52-86bd-746e-9f6a-1e0809cfc18a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OperatingLeaseRightOfUseAsset"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:to="loc_us-gaap_OperatingLeaseRightOfUseAsset_019b0f52-86bd-746e-9f6a-1e0809cfc18a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseOtherNoncurrent_019b0f52-86bd-7fd0-97ca-52a231d553b4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PrepaidExpenseOtherNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:to="loc_us-gaap_PrepaidExpenseOtherNoncurrent_019b0f52-86bd-7fd0-97ca-52a231d553b4" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermInvestments_019b0f52-86bd-759a-aeb7-8faf8751be86" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherLongTermInvestments"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:to="loc_us-gaap_OtherLongTermInvestments_019b0f52-86bd-759a-aeb7-8faf8751be86" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_019b0f52-86bd-7434-8dc1-373d58390d91" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsMiscellaneousNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:to="loc_us-gaap_OtherAssetsMiscellaneousNoncurrent_019b0f52-86bd-7434-8dc1-373d58390d91" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_019b0f52-86bd-71af-807b-3765da374682" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract_019b0f52-86bd-7888-b37c-7a19daed9e1f" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_019b0f52-86bd-71af-807b-3765da374682" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_019b0f52-86bd-7e99-9119-3552a292de7e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentLineItems_019b0f52-86bd-718d-b460-289a93342d06" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_019b0f52-86bd-7e99-9119-3552a292de7e" xlink:type="arc" order="1"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SupplementalFinancialInformationCondensedConsolidatedBalanceSheetsandStatementofOperationsrelatedtoGrantsReceivableandRefundableInvestmentCreditsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SupplementalFinancialInformationCondensedConsolidatedBalanceSheetsandStatementofOperationsrelatedtoGrantsReceivableandRefundableInvestmentCreditsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SupplementalFinancialInformationCondensedConsolidatedBalanceSheetsandStatementofOperationsrelatedtoGrantsReceivableandRefundableInvestmentCreditsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceTable_019cb4a9-4360-70f6-9aeb-84e55eeef22c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceTable_019cb4a9-4360-70f6-9aeb-84e55eeef22c" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_019cb4a9-d8af-7b2c-9227-0f48988f1622" 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_GovernmentAssistanceTable_019cb4a9-4360-70f6-9aeb-84e55eeef22c" xlink:to="loc_us-gaap_IncomeStatementLocationAxis_019cb4a9-d8af-7b2c-9227-0f48988f1622" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019cb4a9-d8af-7b2c-9227-0f48988f1622_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_019cb4a9-d8af-7b2c-9227-0f48988f1622" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019cb4a9-d8af-7b2c-9227-0f48988f1622_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_019cb4a9-d8af-78bb-b1e0-cf9f53eec4ac" 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_019cb4a9-d8af-7b2c-9227-0f48988f1622" xlink:to="loc_us-gaap_IncomeStatementLocationDomain_019cb4a9-d8af-78bb-b1e0-cf9f53eec4ac" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfSalesMember_019cb4a9-d8af-7a3e-bc1d-b1ed93e60104" 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_019cb4a9-d8af-78bb-b1e0-cf9f53eec4ac" xlink:to="loc_us-gaap_CostOfSalesMember_019cb4a9-d8af-7a3e-bc1d-b1ed93e60104" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpenseMember_019cb4a9-d8af-73bc-b0af-c5cae9cb039c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpenseMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_019cb4a9-d8af-78bb-b1e0-cf9f53eec4ac" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpenseMember_019cb4a9-d8af-73bc-b0af-c5cae9cb039c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_019cb4a9-d8af-7db1-acc4-f6a98241e004" 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_019cb4a9-d8af-78bb-b1e0-cf9f53eec4ac" xlink:to="loc_us-gaap_SellingGeneralAndAdministrativeExpensesMember_019cb4a9-d8af-7db1-acc4-f6a98241e004" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceAssetIncreaseCurrentStatementOfFinancialPositionExtensibleEnumeration_019cb9f4-0226-7600-b7bc-6f1b89e87035" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceAssetIncreaseCurrentStatementOfFinancialPositionExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceAssetIncreaseCurrentStatementOfFinancialPositionExtensibleEnumeration_019cb9f4-0226-7600-b7bc-6f1b89e87035" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceAssetDecreaseCurrentStatementOfFinancialPositionExtensibleEnumeration_019cb9f4-b276-7844-a824-db2649a16eee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceAssetDecreaseCurrentStatementOfFinancialPositionExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceAssetDecreaseCurrentStatementOfFinancialPositionExtensibleEnumeration_019cb9f4-b276-7844-a824-db2649a16eee" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceAssetDecreaseNoncurrentStatementOfFinancialPositionExtensibleEnumeration_019cb9f1-3bc9-723e-95c0-e114d1c51efc" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceAssetDecreaseNoncurrentStatementOfFinancialPositionExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceAssetDecreaseNoncurrentStatementOfFinancialPositionExtensibleEnumeration_019cb9f1-3bc9-723e-95c0-e114d1c51efc" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceAssetIncreaseCurrent_019cb55f-1588-745d-85e7-69217bc7d332" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceAssetIncreaseCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceAssetIncreaseCurrent_019cb55f-1588-745d-85e7-69217bc7d332" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceAssetDecreaseCurrent_019cb55f-9274-7658-b1e4-a2a680a1b294" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceAssetDecreaseCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceAssetDecreaseCurrent_019cb55f-9274-7658-b1e4-a2a680a1b294" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceAssetDecreaseNoncurrent_019cb4d0-ea3c-736c-bd71-b713d48f8673" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceAssetDecreaseNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceAssetDecreaseNoncurrent_019cb4d0-ea3c-736c-bd71-b713d48f8673" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_GovernmentAssistanceAssetIncreaseDecrease_019cb4a9-4360-71aa-b4a0-63ef6c578a8b" xlink:href="mrvl-20260131.xsd#mrvl_GovernmentAssistanceAssetIncreaseDecrease"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_mrvl_GovernmentAssistanceAssetIncreaseDecrease_019cb4a9-4360-71aa-b4a0-63ef6c578a8b" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceOperatingExpenseStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_019cb9f2-77f5-77fe-82bd-8ed37c53c210" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceOperatingExpenseStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceOperatingExpenseStatementOfIncomeOrComprehensiveIncomeExtensibleEnumeration_019cb9f2-77f5-77fe-82bd-8ed37c53c210" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GovernmentAssistanceOperatingExpense_019cb4a9-d8af-7e36-9a66-8af83a1ae46c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_GovernmentAssistanceOperatingExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_GovernmentAssistanceLineItems_019cb4a9-4360-78e7-89be-ab9b41e0b6b2" xlink:to="loc_us-gaap_GovernmentAssistanceOperatingExpense_019cb4a9-d8af-7e36-9a66-8af83a1ae46c" xlink:type="arc" order="8"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SupplementalFinancialInformationChangesinAOCIbyComponentsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SupplementalFinancialInformationChangesinAOCIbyComponentsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SupplementalFinancialInformationChangesinAOCIbyComponentsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_019b0f52-86bd-7b28-9b0f-59230c4a4c2a" 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_019b0f52-86bd-7860-96eb-f1bc736ec153" 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_019b0f52-86bd-7b28-9b0f-59230c4a4c2a" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_019b0f52-86bd-7860-96eb-f1bc736ec153" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_019b0f52-86bd-7f62-8b1e-7bf9a74d82de" 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_019b0f52-86bd-7860-96eb-f1bc736ec153" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_019b0f52-86bd-7f62-8b1e-7bf9a74d82de" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7f62-8b1e-7bf9a74d82de_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_019b0f52-86bd-7f62-8b1e-7bf9a74d82de" xlink:to="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-7f62-8b1e-7bf9a74d82de_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-75d0-a276-5cb5f6a3a371" 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_019b0f52-86bd-7f62-8b1e-7bf9a74d82de" xlink:to="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-75d0-a276-5cb5f6a3a371" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_019b0f52-86bd-7ddf-bd36-1fd7ea0c6118" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_019b0f52-86bd-75d0-a276-5cb5f6a3a371" xlink:to="loc_us-gaap_AccumulatedGainLossNetCashFlowHedgeParentMember_019b0f52-86bd-7ddf-bd36-1fd7ea0c6118" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019b0f52-86bd-71c8-abcd-8867a11ef8b0" 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_019b0f52-86bd-7b28-9b0f-59230c4a4c2a" xlink:to="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019b0f52-86bd-71c8-abcd-8867a11ef8b0" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019b0f52-86bd-7e80-8b73-d75a08c3c90d" 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_019b0f52-86bd-71c8-abcd-8867a11ef8b0" xlink:to="loc_us-gaap_StockholdersEquity_019b0f52-86bd-7e80-8b73-d75a08c3c90d" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_019cc393-a25a-7fbd-af16-c29f6e2ffc23" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019b0f52-86bd-71c8-abcd-8867a11ef8b0" xlink:to="loc_us-gaap_OciBeforeReclassificationsNetOfTaxAttributableToParent_019cc393-a25a-7fbd-af16-c29f6e2ffc23" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent_019cc393-dab1-73ec-902d-fd41ce372722" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019b0f52-86bd-71c8-abcd-8867a11ef8b0" xlink:to="loc_us-gaap_ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent_019cc393-dab1-73ec-902d-fd41ce372722" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019cc394-0578-71dc-ad6c-0c517931ba2e" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AOCIAttributableToParentNetOfTaxRollForward_019b0f52-86bd-71c8-abcd-8867a11ef8b0" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_019cc394-0578-71dc-ad6c-0c517931ba2e" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_019b0f52-86bd-7267-81b4-a240fb25c0f6" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StockholdersEquity"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SubsequentEventsDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SubsequentEventsDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SubsequentEventsDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventLineItems_019c4757-ac85-75c0-aa3d-1e829aec5a7b" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTable_019c4757-ac85-733f-b0a7-f681a0a0b926" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_SubsequentEventTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_019c4757-ac85-75c0-aa3d-1e829aec5a7b" xlink:to="loc_us-gaap_SubsequentEventTable_019c4757-ac85-733f-b0a7-f681a0a0b926" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_019c4757-ac85-751a-902c-766cefb79e12" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019c4757-ac85-733f-b0a7-f681a0a0b926" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_019c4757-ac85-751a-902c-766cefb79e12" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c4757-ac85-751a-902c-766cefb79e12_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019c4757-ac85-751a-902c-766cefb79e12" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c4757-ac85-751a-902c-766cefb79e12_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c4757-ac85-7965-b76e-424dd1cc9ae2" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_019c4757-ac85-751a-902c-766cefb79e12" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c4757-ac85-7965-b76e-424dd1cc9ae2" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_CelestialAIInc.Member_019c4757-d87b-756d-a204-6c773aa54fa7" xlink:href="mrvl-20260131.xsd#mrvl_CelestialAIInc.Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c4757-ac85-7965-b76e-424dd1cc9ae2" xlink:to="loc_mrvl_CelestialAIInc.Member_019c4757-d87b-756d-a204-6c773aa54fa7" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_XConnTechnologiesMember_019c4757-ac85-7205-baa6-e533179f30df" xlink:href="mrvl-20260131.xsd#mrvl_XConnTechnologiesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_019c4757-ac85-7965-b76e-424dd1cc9ae2" xlink:to="loc_mrvl_XConnTechnologiesMember_019c4757-ac85-7205-baa6-e533179f30df" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_019c4757-ac85-7592-a499-b365b2fbe535" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityInterestIssuedOrIssuableByTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_019c4757-ac85-733f-b0a7-f681a0a0b926" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_019c4757-ac85-7592-a499-b365b2fbe535" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_019c4757-ac85-7592-a499-b365b2fbe535_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_019c4757-ac85-7592-a499-b365b2fbe535" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_019c4757-ac85-7592-a499-b365b2fbe535_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_019c4757-ac85-7043-afec-e5a0b7c91918" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EquityInterestIssuedOrIssuableTypeDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_EquityInterestIssuedOrIssuableByTypeAxis_019c4757-ac85-7592-a499-b365b2fbe535" xlink:to="loc_us-gaap_EquityInterestIssuedOrIssuableTypeDomain_019c4757-ac85-7043-afec-e5a0b7c91918" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019c4757-ac85-7ccc-a953-cb630be9c53f" 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_EquityInterestIssuedOrIssuableTypeDomain_019c4757-ac85-7043-afec-e5a0b7c91918" xlink:to="loc_us-gaap_CommonStockMember_019c4757-ac85-7ccc-a953-cb630be9c53f" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_019c475a-ac6d-705a-966a-6268259a548b" 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_SubsequentEventTable_019c4757-ac85-733f-b0a7-f681a0a0b926" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_019c475a-ac6d-705a-966a-6268259a548b" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019c475a-ac6d-705a-966a-6268259a548b_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_019c475a-ac6d-705a-966a-6268259a548b" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019c475a-ac6d-705a-966a-6268259a548b_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_019c475a-ac6d-74ad-a570-999685389489" 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_019c475a-ac6d-705a-966a-6268259a548b" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_019c475a-ac6d-74ad-a570-999685389489" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember_019c475a-d543-7761-ad60-31dbe32038ee" 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_019c475a-ac6d-74ad-a570-999685389489" xlink:to="loc_us-gaap_SubsequentEventMember_019c475a-d543-7761-ad60-31dbe32038ee" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_019c4757-ac85-7ae5-a565-016df9c0dea4" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireBusinessesGross"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019c4757-ac85-75c0-aa3d-1e829aec5a7b" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_019c4757-ac85-7ae5-a565-016df9c0dea4" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019c950e-c941-79d2-8986-d16c921f7486" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019c4757-ac85-75c0-aa3d-1e829aec5a7b" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired_019c950e-c941-79d2-8986-d16c921f7486" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAcquiredFromAcquisition_019c950f-0551-75de-ae2d-c3ee727bb0f0" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_CashAcquiredFromAcquisition"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019c4757-ac85-75c0-aa3d-1e829aec5a7b" xlink:to="loc_us-gaap_CashAcquiredFromAcquisition_019c950f-0551-75de-ae2d-c3ee727bb0f0" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_019cb4ae-da27-7015-ab53-4fc2afc8ee18" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_019c4757-ac85-75c0-aa3d-1e829aec5a7b" xlink:to="loc_us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued_019cb4ae-da27-7015-ab53-4fc2afc8ee18" xlink:type="arc" order="3"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://www.marvell.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" xlink:type="simple" xlink:href="mrvl-20260131.xsd#SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails"/>
  <link:definitionLink xlink:role="http://www.marvell.com/role/SCHEDULEIIVALUATIONANDQUALIFYINGACCOUNTSDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_srt_ValuationAndQualifyingAccountsDisclosureLineItems_019b0f52-86bd-7bd6-8924-96c64dee6f5c" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ValuationAndQualifyingAccountsDisclosureLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ValuationAndQualifyingAccountsDisclosureTable_019b0f52-86bd-76a3-9e3b-dbabc0a5fb2b" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_ValuationAndQualifyingAccountsDisclosureTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_srt_ValuationAndQualifyingAccountsDisclosureLineItems_019b0f52-86bd-7bd6-8924-96c64dee6f5c" xlink:to="loc_srt_ValuationAndQualifyingAccountsDisclosureTable_019b0f52-86bd-76a3-9e3b-dbabc0a5fb2b" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019b0f52-86bd-7a2d-916f-e83af891274a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesTypeAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_srt_ValuationAndQualifyingAccountsDisclosureTable_019b0f52-86bd-76a3-9e3b-dbabc0a5fb2b" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019b0f52-86bd-7a2d-916f-e83af891274a" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_019b0f52-86bd-7a2d-916f-e83af891274a_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019b0f52-86bd-7a2d-916f-e83af891274a" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_019b0f52-86bd-7a2d-916f-e83af891274a_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDomain_019b0f52-86bd-7d8d-909b-848444b37c8c" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesTypeAxis_019b0f52-86bd-7a2d-916f-e83af891274a" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDomain_019b0f52-86bd-7d8d-909b-848444b37c8c" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForCreditLossMember_019b0f52-86bd-70c8-8a93-39a402c2d5e5" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AllowanceForCreditLossMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_019b0f52-86bd-7d8d-909b-848444b37c8c" xlink:to="loc_us-gaap_AllowanceForCreditLossMember_019b0f52-86bd-70c8-8a93-39a402c2d5e5" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember_019b0f52-86bd-7b55-9d5d-d811e1b11a82" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ValuationAllowancesAndReservesDomain_019b0f52-86bd-7d8d-909b-848444b37c8c" xlink:to="loc_us-gaap_ValuationAllowanceOfDeferredTaxAssetsMember_019b0f52-86bd-7b55-9d5d-d811e1b11a82" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019b0f52-86bd-78a0-98ac-c3bae1102603" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_MovementInValuationAllowancesAndReservesRollForward"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ValuationAndQualifyingAccountsDisclosureLineItems_019b0f52-86bd-7bd6-8924-96c64dee6f5c" xlink:to="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019b0f52-86bd-78a0-98ac-c3bae1102603" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_019b0f52-86bd-7f5b-89c6-46d8b3f7fa06" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesBalance"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019b0f52-86bd-78a0-98ac-c3bae1102603" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesBalance_019b0f52-86bd-7f5b-89c6-46d8b3f7fa06" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_019b0f52-86bd-70e4-9d98-d23e6f3fb0ee" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019b0f52-86bd-78a0-98ac-c3bae1102603" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesChargedToCostAndExpense_019b0f52-86bd-70e4-9d98-d23e6f3fb0ee" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesDeductions_019b0f52-86bd-76c2-804f-03d27a96517a" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesDeductions"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_MovementInValuationAllowancesAndReservesRollForward_019b0f52-86bd-78a0-98ac-c3bae1102603" xlink:to="loc_us-gaap_ValuationAllowancesAndReservesDeductions_019b0f52-86bd-76c2-804f-03d27a96517a" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ValuationAllowancesAndReservesBalance_019b0f52-86bd-7801-beb0-3f30f16f9423" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ValuationAllowancesAndReservesBalance"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd#eedm"/>
  <link:definitionLink xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestructuringCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_RestructuringCosts"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="loc_us-gaap_RestructuringCosts" xlink:type="arc" order="691"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ResearchAndDevelopmentExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ResearchAndDevelopmentExpense"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="loc_us-gaap_ResearchAndDevelopmentExpense" xlink:type="arc" order="692"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="loc_us-gaap_OtherAssetsNoncurrent" xlink:type="arc" order="101"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AccruedLiabilitiesCurrent"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:to="loc_us-gaap_AccruedLiabilitiesCurrent" xlink:type="arc" order="41"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InventoryNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract" xlink:to="loc_us-gaap_InventoryNet" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetsCurrentAbstract" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:type="arc" order="22"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#IndividualsOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/ecd/role/IndividualsOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_ecd_AllIndividualsMember" xlink:href="https://xbrl.sec.gov/ecd/2025/ecd-2025.xsd#ecd_AllIndividualsMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_MatthewJ.MurphyMember_019c9504-115d-72d7-bd48-9a0668e3af91" xlink:href="mrvl-20260131.xsd#mrvl_MatthewJ.MurphyMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_mrvl_MatthewJ.MurphyMember_019c9504-115d-72d7-bd48-9a0668e3af91" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_SandeepBharathiMember_019c9504-791a-74d5-ba33-1569f7e706f7" xlink:href="mrvl-20260131.xsd#mrvl_SandeepBharathiMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_mrvl_SandeepBharathiMember_019c9504-791a-74d5-ba33-1569f7e706f7" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_WillemMeintjesMember_019c9505-6a57-7ffc-a869-89ae635ea69a" xlink:href="mrvl-20260131.xsd#mrvl_WillemMeintjesMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_mrvl_WillemMeintjesMember_019c9505-6a57-7ffc-a869-89ae635ea69a" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_mrvl_ChristopherKoopmansMember_019c9506-3362-7332-8c34-3c2970e24b84" xlink:href="mrvl-20260131.xsd#mrvl_ChristopherKoopmansMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_ecd_AllIndividualsMember" xlink:to="loc_mrvl_ChristopherKoopmansMember_019c9506-3362-7332-8c34-3c2970e24b84" xlink:type="arc" order="5"/>
  </link:definitionLink>
</link:linkbase>
