content: <?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>0001808037</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001675149</issuerCik>
        <issuerName>Alcoa Corp</issuerName>
        <secFileNumber>001-37816</secFileNumber>
        <issuerAddress>
          <com:street1>201 ISABELLA STREET</com:street1>
          <com:street2>SUITE 500</com:street2>
          <com:city>PITTSBURGH</com:city>
          <com:stateOrCountry>PA</com:stateOrCountry>
          <com:zipCode>15212</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>412-315-2900</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Jones Tammi A</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill Lynch</name>
          <address>
            <com:street1>225 Liberty St</com:street1>
            <com:street2>Floor 37</com:street2>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10281</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>26468</noOfUnitsSold>
        <aggregateMarketValue>814582.16</aggregateMarketValue>
        <noOfUnitsOutstanding>179558990</noOfUnitsOutstanding>
        <approxSaleDate>03/13/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>01/27/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Alcoa Corp</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>10076</amountOfSecuritiesAcquired>
        <paymentDate>01/27/2024</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>01/27/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of performance share unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Alcoa Corp</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>15644</amountOfSecuritiesAcquired>
        <paymentDate>01/27/2024</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <acquiredDate>01/29/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Vesting of restricted stock unit award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Alcoa Corp</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>748</amountOfSecuritiesAcquired>
        <paymentDate>01/29/2024</paymentDate>
        <natureOfPayment>Granted as part of issuer equity compensation plan</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Tammi Jones</name>
          <address>
            <com:street1>201 ISABELLA STREET</com:street1>
            <com:street2>SUITE 500</com:street2>
            <com:city>PITTSBURGH</com:city>
            <com:stateOrCountry>PA</com:stateOrCountry>
            <com:zipCode>15212</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common Stock</securitiesClassTitle>
        <saleDate>03/13/2024</saleDate>
        <amountOfSecuritiesSold>1440</amountOfSecuritiesSold>
        <grossProceeds>44164.80</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>03/13/2024</noticeDate>
        <signature>Tammi Jones</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 4679}]
text: 144
  0001808037
  XXXXXXXX
  LIVE
  0001675149
  Alcoa Corp
  001-37816
  201 ISABELLA STREET
  SUITE 500
  PITTSBURGH
  PA
  15212
  412-315-2900
  Jones Tammi A
  Officer
  Common Stock
  Merrill Lynch
  225 Liberty St
  Floor 37
  New York
  NY
  10281
  26468
  814582.16
  179558990
  03/13/2024
  NYSE
  Common Stock
  01/27/2024
  Vesting of restricted stock unit award
  Alcoa Corp
  N
  10076
  01/27/2024
  Granted as part of issuer equity compensation plan
  Common Stock
  01/27/2024
  Vesting of performance share unit award
  Alcoa Corp
  N
  15644
  01/27/2024
  Granted as part of issuer equity compensation plan
  Common Stock
  01/29/2024
  Vesting of restricted stock unit award
  Alcoa Corp
  N
  748
  01/29/2024
  Granted as part of issuer equity compensation plan
  N
  Tammi Jones
  201 ISABELLA STREET
  SUITE 500
  PITTSBURGH
  PA
  15212
  Common Stock
  03/13/2024
  1440
  44164.80
  03/13/2024
  Tammi Jones