<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D/A</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001259942</cik>
        <entityName>BELLUS Health Inc.</entityName>
        <issuerAddress>
            <street1>275 ARMAND-FRAPPIER BLVD.</street1>
            <city>LAVAL</city>
            <stateOrCountry>A8</stateOrCountry>
            <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
            <zipCode>H7V 4A7</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>450-680-4500</issuerPhoneNumber>
        <jurisdictionOfInc>CANADA (FEDERAL LEVEL)</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>NEUROCHEM INC</previousName>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Roberto</firstName>
                <lastName>Bellini</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>President and Chief Executive Officer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Denis</firstName>
                <lastName>Garceau</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Senior Vice President, Drug Development</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Francois</firstName>
                <lastName>Desjardins</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President, Finance</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Tony</firstName>
                <lastName>Matzouranis</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Vice President, Business Development</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Francesco</firstName>
                <lastName>Bellini</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Youssef</firstName>
                <middleName>L.</middleName>
                <lastName>Bennani</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Franklin</firstName>
                <lastName>Berger</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Clarissa</firstName>
                <lastName>Desjardins</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Pierre</firstName>
                <lastName>Larochelle</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Joseph</firstName>
                <lastName>Rus</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Chau</firstName>
                <middleName>Quang</middleName>
                <lastName>Khuong</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>275 Armand-Frappier Blvd.</street1>
                <city>Laval</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>H7V 4A7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Biotechnology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001259942-19-000001</previousAccessionNumber>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2018-12-18</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
            <clarificationOfResponse></clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList>
            <recipient>
                <recipientName>N/A</recipientName>
                <recipientCRDNumber>None</recipientCRDNumber>
                <associatedBDName>HAYWOOD SECURITIES (USA) INC.</associatedBDName>
                <associatedBDCRDNumber>42072</associatedBDCRDNumber>
                <recipientAddress>
                    <street1>200 BURRARD ST</street1>
                    <street2>SUITE 700</street2>
                    <city>VANCOUVER</city>
                    <stateOrCountry>A1</stateOrCountry>
                    <stateOrCountryDescription>BRITISH COLUMBIA, CANADA</stateOrCountryDescription>
                    <zipCode>V6C 3L6</zipCode>
                </recipientAddress>
                <statesOfSolicitationList>
                    <state>CA</state>
                    <description>CALIFORNIA</description>
                    <state>FL</state>
                    <description>FLORIDA</description>
                    <state>MA</state>
                    <description>MASSACHUSETTS</description>
                    <state>NY</state>
                    <description>NEW YORK</description>
                </statesOfSolicitationList>
                <foreignSolicitation>false</foreignSolicitation>
            </recipient>
        </salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>23970494</totalOfferingAmount>
            <totalAmountSold>23970494</totalAmountSold>
            <totalRemaining>0</totalRemaining>
            <clarificationOfResponse>CONVERTED FROM CANADIAN DOLLARS USING THE BANK OF CANADA EXCHANGE RATE ON DECEMBER 18, 2018.</clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>14</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>1210920</dollarAmount>
                <isEstimate>true</isEstimate>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse>Primarily to fund research and development activities, general and administrative expenses, working capital needs and other general corporate purposes.</clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>BELLUS Health Inc.</issuerName>
                <signatureName>/s/ Francois Desjardins</signatureName>
                <nameOfSigner>Francois Desjardins</nameOfSigner>
                <signatureTitle>Vice President, Finance</signatureTitle>
                <signatureDate>2019-01-28</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
