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>0001792850</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0000315293</issuerCik>
        <issuerName>Aon plc</issuerName>
        <secFileNumber>001-07933</secFileNumber>
        <issuerAddress>
          <com:street1>METROPOLITAN BUILDING</com:street1>
          <com:street2>JAMES JOYCE STREET</com:street2>
          <com:city>DUBLIN 1</com:city>
          <com:stateOrCountry>L2</com:stateOrCountry>
          <com:zipCode>D01 K0Y8</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>35312666000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Stevens Lisa</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Class A</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>Fidelity Brokerage Services LLC</name>
          <address>
            <com:street1>900 Salem Street</com:street1>
            <com:city>Smithfield</com:city>
            <com:stateOrCountry>RI</com:stateOrCountry>
            <com:zipCode>02917</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>316</noOfUnitsSold>
        <aggregateMarketValue>99689.87</aggregateMarketValue>
        <noOfUnitsOutstanding>198297735</noOfUnitsOutstanding>
        <approxSaleDate>03/06/2024</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A</securitiesClassTitle>
        <acquiredDate>02/22/2024</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>316</amountOfSecuritiesAcquired>
        <paymentDate>02/22/2024</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Lisa J. Stevens</name>
          <address>
            <com:street1>Metropolitan Building</com:street1>
            <com:street2>James Joyce Street</com:street2>
            <com:city>Dublin 1</com:city>
            <com:stateOrCountry>L2</com:stateOrCountry>
            <com:zipCode>D01 K0Y8</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Class A</securitiesClassTitle>
        <saleDate>02/23/2024</saleDate>
        <amountOfSecuritiesSold>13000</amountOfSecuritiesSold>
        <grossProceeds>4098380.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>03/06/2024</noticeDate>
        <signature>/s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Lisa J. Stevens</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3530}]
text: 144
  0001792850
  XXXXXXXX
  LIVE
  0000315293
  Aon plc
  001-07933
  METROPOLITAN BUILDING
  JAMES JOYCE STREET
  DUBLIN 1
  L2
  D01 K0Y8
  35312666000
  Stevens Lisa
  Officer
  Class A
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  316
  99689.87
  198297735
  03/06/2024
  NYSE
  Class A
  02/22/2024
  Restricted Stock Vesting
  Issuer
  N
  316
  02/22/2024
  Compensation
  N
  Lisa J. Stevens
  Metropolitan Building
  James Joyce Street
  Dublin 1
  L2
  D01 K0Y8
  Class A
  02/23/2024
  13000
  4098380.00
  03/06/2024
  /s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Lisa J. Stevens