<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0002060780</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>


    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001513845</issuerCik>
      <issuerName>Nebius Group N.V.</issuerName>
      <secFileNumber>001-35173</secFileNumber>
      <issuerAddress>
        <com:street1>SCHIPHOL BOULEVARD 165</com:street1>
        <com:city>SCHIPHOL</com:city>
        <com:stateOrCountry>P7</com:stateOrCountry>
        <com:zipCode>1118 BG</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>31202066970</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Volozh Arkadiy</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
        <relationshipToIssuer>10% SHAREHOLDER</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>CLASS A ORDINARY SHARES</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>CITIGROUP GLOBAL MARKETS</name>
        <address>
          <com:street1>390 GREENWICH ST</com:street1>
          <com:city>NEW YORK</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10013</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>38099</noOfUnitsSold>
      <aggregateMarketValue>4210651.95</aggregateMarketValue>
      <noOfUnitsOutstanding>203006418</noOfUnitsOutstanding>
      <approxSaleDate>10/01/2025</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>CLASS A ORDINARY SHARES</securitiesClassTitle>
      <acquiredDate>10/01/2025</acquiredDate>
      <natureOfAcquisitionTransaction>AWARDS RSP 2024</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>NEBIUS GROUP N V</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>75000</amountOfSecuritiesAcquired>
      <paymentDate>10/01/2025</paymentDate>
      <natureOfPayment>COMPENSATION</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>VOLOZH ARKADIY</name>
        <address>
          <com:street1>SCHIPHOL BOULEVARD 165</com:street1>
          <com:city>SCHIPHOL</com:city>
          <com:stateOrCountry>P7</com:stateOrCountry>
          <com:zipCode>1118 BG</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <saleDate>09/11/2025</saleDate>
      <amountOfSecuritiesSold>2048975</amountOfSecuritiesSold>
      <grossProceeds>187943882.91</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>VOLOZH ARKADIY</name>
        <address>
          <com:street1>SCHIPHOL BOULEVARD 165</com:street1>
          <com:city>SCHIHOL</com:city>
          <com:stateOrCountry>P7</com:stateOrCountry>
          <com:zipCode>1118 BG</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <saleDate>07/02/2025</saleDate>
      <amountOfSecuritiesSold>36241</amountOfSecuritiesSold>
      <grossProceeds>1848606.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>VOLOZH ARKADIY</name>
        <address>
          <com:street1>SCHIPHOL BOULEVARD</com:street1>
          <com:city>SCHIHOL</com:city>
          <com:stateOrCountry>P7</com:stateOrCountry>
          <com:zipCode>1118 BG</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <saleDate>07/01/2025</saleDate>
      <amountOfSecuritiesSold>38759</amountOfSecuritiesSold>
      <grossProceeds>2075412.00</grossProceeds>
    </securitiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>VOLOZH ARKADIY</name>
        <address>
          <com:street1>SCHIPHOL BOULEVARD 165</com:street1>
          <com:city>SCHIPHOL</com:city>
          <com:stateOrCountry>P7</com:stateOrCountry>
          <com:zipCode>1118BG</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>ORDINARY SHARES</securitiesClassTitle>
      <saleDate>09/12/2025</saleDate>
      <amountOfSecuritiesSold>33681</amountOfSecuritiesSold>
      <grossProceeds>190998513.84</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>Under section 3 d market price is based on indicative market pricing--Shares being sold are pursuant to sell to cover transaction and obligation</remarks>
    <noticeSignature>
      <noticeDate>10/01/2025</noticeDate>
      <signature>CONFORMED SIGNATURE ON FILE</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
