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

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019e746b-d65c-78f2-933c-33aa19881c0f,g:f829919d-ff13-418d-9e07-ce036ace5900-->
<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.noblecorp.com/role/Cover" xlink:type="simple" xlink:href="ne-20260601.xsd#Cover"/>
  <link:definitionLink xlink:role="http://www.noblecorp.com/role/Cover" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationLineItems"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentInformationTable_019e746b-d65c-7fd9-b61b-b2f86cf9c6b1" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentInformationTable"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_DocumentInformationTable_019e746b-d65c-7fd9-b61b-b2f86cf9c6b1" xlink:type="arc" order="1" xbrldt:closed="true" xbrldt:contextElement="segment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementClassOfStockAxis_019e746b-d65c-7fa6-a5ac-5d6d2b162fc8" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_StatementClassOfStockAxis"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_dei_DocumentInformationTable_019e746b-d65c-7fd9-b61b-b2f86cf9c6b1" xlink:to="loc_us-gaap_StatementClassOfStockAxis_019e746b-d65c-7fa6-a5ac-5d6d2b162fc8" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019e746b-d65c-7fa6-a5ac-5d6d2b162fc8_default" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019e746b-d65c-7fa6-a5ac-5d6d2b162fc8" xlink:to="loc_us-gaap_ClassOfStockDomain_019e746b-d65c-7fa6-a5ac-5d6d2b162fc8_default" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ClassOfStockDomain_019e746b-d65c-7bf1-a228-0215a8d7a056" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_ClassOfStockDomain"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_019e746b-d65c-7fa6-a5ac-5d6d2b162fc8" xlink:to="loc_us-gaap_ClassOfStockDomain_019e746b-d65c-7bf1-a228-0215a8d7a056" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember_019e746b-d65c-7829-a160-f08fd117b025" 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_ClassOfStockDomain_019e746b-d65c-7bf1-a228-0215a8d7a056" xlink:to="loc_us-gaap_CommonStockMember_019e746b-d65c-7829-a160-f08fd117b025" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_ne_Tranche2WarrantsMember_019e746b-d65c-71f2-9c02-c6d1fdee29f3" xlink:href="ne-20260601.xsd#ne_Tranche2WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019e746b-d65c-7bf1-a228-0215a8d7a056" xlink:to="loc_ne_Tranche2WarrantsMember_019e746b-d65c-71f2-9c02-c6d1fdee29f3" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ne_Tranche1WarrantsMember_019e746b-d65c-7aa0-b9ed-beea30fac57a" xlink:href="ne-20260601.xsd#ne_Tranche1WarrantsMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_019e746b-d65c-7bf1-a228-0215a8d7a056" xlink:to="loc_ne_Tranche1WarrantsMember_019e746b-d65c-7aa0-b9ed-beea30fac57a" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType_019e746b-d65c-7c3e-a68e-22c22055050c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentType"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_DocumentType_019e746b-d65c-7c3e-a68e-22c22055050c" xlink:type="arc" order="0"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate_019e746b-d65c-717d-8d14-e31bb45c478e" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_DocumentPeriodEndDate"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_DocumentPeriodEndDate_019e746b-d65c-717d-8d14-e31bb45c478e" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName_019e746b-d65c-7c64-bebe-9d646cbeeb8f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityRegistrantName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityRegistrantName_019e746b-d65c-7c64-bebe-9d646cbeeb8f" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey_019e746b-d65c-76da-84ba-e8e00d0a8fe0" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityCentralIndexKey"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityCentralIndexKey_019e746b-d65c-76da-84ba-e8e00d0a8fe0" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag_019e746b-d65c-7855-9fa5-92db1d6a7560" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_AmendmentFlag"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_AmendmentFlag_019e746b-d65c-7855-9fa5-92db1d6a7560" xlink:type="arc" order="4"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode_019e746b-d65c-7574-83a5-7f5c083060c3" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityIncorporationStateCountryCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityIncorporationStateCountryCode_019e746b-d65c-7574-83a5-7f5c083060c3" xlink:type="arc" order="5"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityFileNumber_019e746b-d65c-76fd-a99d-857ea9296cc4" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityFileNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityFileNumber_019e746b-d65c-76fd-a99d-857ea9296cc4" xlink:type="arc" order="6"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber_019e746b-d65c-75f1-9435-da43b9e43428" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityTaxIdentificationNumber_019e746b-d65c-75f1-9435-da43b9e43428" xlink:type="arc" order="7"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1_019e746b-d65c-7ea6-b775-11ee5883e3c5" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine1"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityAddressAddressLine1_019e746b-d65c-7ea6-b775-11ee5883e3c5" xlink:type="arc" order="8"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine2_019e746b-d65c-75c9-9dc5-a923caeac342" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressAddressLine2"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityAddressAddressLine2_019e746b-d65c-75c9-9dc5-a923caeac342" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressCityOrTown_019e746b-d65c-76e9-bb53-8824c471337a" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressCityOrTown"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityAddressCityOrTown_019e746b-d65c-76e9-bb53-8824c471337a" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince_019e746b-d65c-7ce8-8a5c-0f3a01714a27" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressStateOrProvince"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityAddressStateOrProvince_019e746b-d65c-7ce8-8a5c-0f3a01714a27" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode_019e746b-d65c-74b5-92b8-0c7b04a4850f" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityAddressPostalZipCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityAddressPostalZipCode_019e746b-d65c-74b5-92b8-0c7b04a4850f" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode_019e746b-d65c-7931-9fb2-5e981644ac6b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_CityAreaCode"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_CityAreaCode_019e746b-d65c-7931-9fb2-5e981644ac6b" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber_019e746b-d65c-7a51-b363-83233e388a17" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_LocalPhoneNumber"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_LocalPhoneNumber_019e746b-d65c-7a51-b363-83233e388a17" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_WrittenCommunications_019e746b-d65c-797e-af6e-1ec63facd8cd" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_WrittenCommunications"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_WrittenCommunications_019e746b-d65c-797e-af6e-1ec63facd8cd" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SolicitingMaterial_019e746b-d65c-7269-b190-eba9ad9c436b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SolicitingMaterial"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_SolicitingMaterial_019e746b-d65c-7269-b190-eba9ad9c436b" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementTenderOffer_019e746b-d65c-7d91-ad77-872ee859580b" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_PreCommencementTenderOffer_019e746b-d65c-7d91-ad77-872ee859580b" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_PreCommencementIssuerTenderOffer_019e746b-d65c-7094-9254-e6656c52148c" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_PreCommencementIssuerTenderOffer"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_PreCommencementIssuerTenderOffer_019e746b-d65c-7094-9254-e6656c52148c" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany_019e746b-d65c-7742-adbb-7e2b9b35ac53" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_EntityEmergingGrowthCompany_019e746b-d65c-7742-adbb-7e2b9b35ac53" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle_019e746b-d65c-7e4d-bd0a-2b7e254fc566" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_Security12bTitle"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_Security12bTitle_019e746b-d65c-7e4d-bd0a-2b7e254fc566" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol_019e746b-d65c-7a30-9b0d-b0153cbe5616" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_TradingSymbol"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_TradingSymbol_019e746b-d65c-7a30-9b0d-b0153cbe5616" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName_019e746b-d65c-741d-9d0c-85cc3980d4fc" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_SecurityExchangeName"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_DocumentInformationLineItems_019e746b-d65c-7db6-abc2-65ac4fb78e81" xlink:to="loc_dei_SecurityExchangeName_019e746b-d65c-741d-9d0c-85cc3980d4fc" xlink:type="arc" order="22"/>
  </link:definitionLink>
</link:linkbase>
