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>0001161707</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000076334</issuerCik>
        <issuerName>PARKER HANNIFIN CORP</issuerName>
        <secFileNumber>001-04982</secFileNumber>
        <issuerAddress>
          <com:street1>6035 PARKLAND BOULEVARD</com:street1>
          <com:city>CLEVELAND</com:city>
          <com:stateOrCountry>OH</com:stateOrCountry>
          <com:zipCode>44124-4141</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>2168963000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>BANKS LEE C</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Kestra</name>
          <address>
            <com:street1>5707 Southwest Pkwy Bldg 2 Ste 40</com:street1>
            <com:city>Austin</com:city>
            <com:stateOrCountry>TX</com:stateOrCountry>
            <com:zipCode>78735</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>23638</noOfUnitsSold>
        <aggregateMarketValue>9625000.00</aggregateMarketValue>
        <noOfUnitsOutstanding>128410000</noOfUnitsOutstanding>
        <approxSaleDate>08/04/2023</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>04/27/2022</acquiredDate>
        <natureOfAcquisitionTransaction>Stock award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Parker Hannifin</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>16023</amountOfSecuritiesAcquired>
        <paymentDate>04/27/2022</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>08/17/2021</acquiredDate>
        <natureOfAcquisitionTransaction>Stock Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Parker Hannifin</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>7615</amountOfSecuritiesAcquired>
        <paymentDate>08/17/2021</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>08/04/2023</noticeDate>
        <signature>/s/ Christian Nasser, as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Lee Banks</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3354}]
text: 144
  0001161707
  XXXXXXXX
  LIVE
  0000076334
  PARKER HANNIFIN CORP
  001-04982
  6035 PARKLAND BOULEVARD
  CLEVELAND
  OH
  44124-4141
  2168963000
  BANKS LEE C
  Officer
  Common
  Kestra
  5707 Southwest Pkwy Bldg 2 Ste 40
  Austin
  TX
  78735
  23638
  9625000.00
  128410000
  08/04/2023
  NYSE
  Common
  04/27/2022
  Stock award
  Parker Hannifin
  N
  16023
  04/27/2022
  Compensation
  Common
  08/17/2021
  Stock Award
  Parker Hannifin
  N
  7615
  08/17/2021
  Compensation
  Y
  08/04/2023
  /s/ Christian Nasser, as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for Lee Banks