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>0001661555</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001122976</issuerCik>
        <issuerName>AVIENT CORP</issuerName>
        <secFileNumber>001-16091</secFileNumber>
        <issuerAddress>
          <com:street1>33587 WALKER ROAD</com:street1>
          <com:city>AVON LAKE</com:city>
          <com:stateOrCountry>OH</com:stateOrCountry>
          <com:zipCode>44012</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>440-930-1000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Rathbun Joel R.</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Merrill</name>
          <address>
            <com:street1>8890 Lyra Dr 5th Flr</com:street1>
            <com:city>Columbus</com:city>
            <com:stateOrCountry>OH</com:stateOrCountry>
            <com:zipCode>43240</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>6743</noOfUnitsSold>
        <aggregateMarketValue>262820.00</aggregateMarketValue>
        <noOfUnitsOutstanding>91080656</noOfUnitsOutstanding>
        <approxSaleDate>09/06/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/11/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted stock vest</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Avient Corp</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>3119</amountOfSecuritiesAcquired>
        <paymentDate>02/11/2023</paymentDate>
        <natureOfPayment>na</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>02/10/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted stock vest</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Avient Corp</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>3544</amountOfSecuritiesAcquired>
        <paymentDate>02/10/2023</paymentDate>
        <natureOfPayment>na</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>09/06/2023</noticeDate>
        <signature>Joel Rathbun</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3204}]
text: 144
  0001661555
  XXXXXXXX
  LIVE
  0001122976
  AVIENT CORP
  001-16091
  33587 WALKER ROAD
  AVON LAKE
  OH
  44012
  440-930-1000
  Rathbun Joel R.
  Officer
  Common
  Merrill
  8890 Lyra Dr 5th Flr
  Columbus
  OH
  43240
  6743
  262820.00
  91080656
  09/06/2023
  NYSE
  Common
  02/11/2022
  Restricted stock vest
  Avient Corp
  N
  3119
  02/11/2023
  na
  Common
  02/10/2023
  Restricted stock vest
  Avient Corp
  N
  3544
  02/10/2023
  na
  Y
  09/06/2023
  Joel Rathbun