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>0001190105</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001002910</issuerCik>
        <issuerName>AMEREN CORP</issuerName>
        <secFileNumber>001-14756</secFileNumber>
        <issuerAddress>
          <com:street1>1901 CHOUTEAU AVE</com:street1>
          <com:street2>MC 1310</com:street2>
          <com:city>ST LOUIS</com:city>
          <com:stateOrCountry>MO</com:stateOrCountry>
          <com:zipCode>63166-6149</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>314-621-3222</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>MOEHN MICHAEL L</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Common</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>6500</noOfUnitsSold>
        <aggregateMarketValue>641030.00</aggregateMarketValue>
        <noOfUnitsOutstanding>270278917</noOfUnitsOutstanding>
        <approxSaleDate>05/20/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <acquiredDate>09/18/2023</acquiredDate>
        <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>6500</amountOfSecuritiesAcquired>
        <paymentDate>09/18/2023</paymentDate>
        <natureOfPayment>Compensation</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <securitiesSoldInPast3Months>
        <sellerDetails>
          <name>Michael Moehn</name>
          <address>
            <com:street1>1901 Chouteau Avenue</com:street1>
            <com:city>St. Louis</com:city>
            <com:stateOrCountry>MO</com:stateOrCountry>
            <com:zipCode>63103</com:zipCode>
          </address>
        </sellerDetails>
        <securitiesClassTitle>Common</securitiesClassTitle>
        <saleDate>02/20/2025</saleDate>
        <amountOfSecuritiesSold>6500</amountOfSecuritiesSold>
        <grossProceeds>634010.00</grossProceeds>
      </securitiesSoldInPast3Months>
      <noticeSignature>
        <noticeDate>05/20/2025</noticeDate>
        <planAdoptionDates>
          <planAdoptionDate>05/21/2024</planAdoptionDate>
        </planAdoptionDates>
        <signature>/s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Michael Moehn</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3564}]
text: 144
  0001190105
  XXXXXXXX
  LIVE
  0001002910
  AMEREN CORP
  001-14756
  1901 CHOUTEAU AVE
  MC 1310
  ST LOUIS
  MO
  63166-6149
  314-621-3222
  MOEHN MICHAEL L
  Officer
  Common
  Fidelity Brokerage Services LLC
  900 Salem Street
  Smithfield
  RI
  02917
  6500
  641030.00
  270278917
  05/20/2025
  NYSE
  Common
  09/18/2023
  Restricted Stock Vesting
  Issuer
  N
  6500
  09/18/2023
  Compensation
  N
  Michael Moehn
  1901 Chouteau Avenue
  St. Louis
  MO
  63103
  Common
  02/20/2025
  6500
  634010.00
  05/20/2025
  05/21/2024
  /s/ Jennifer Ruchti, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Michael Moehn