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

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-04-14</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000846930</issuerCik>
        <issuerName>DUQUESNE LIGHT HOLDINGS INC</issuerName>
        <issuerTradingSymbol>DQE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001322707</rptOwnerCik>
            <rptOwnerName>Schmitt John R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>411 SEVENTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15219</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5800</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>15.015</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2004-06-16</value>
            </exerciseDate>
            <expirationDate>
                <value>2012-12-16</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3050</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Employee Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>15.015</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2012-12-16</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3050</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Preference Stock Plan, Series A</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F5"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Preference Stock, Series A</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>559</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>In 401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted Stock</footnote>
        <footnote id="F2">The options become exercisable, if at all, if 18 months have passed since the grant date and the average daily closing price of DLH common stock on the NYSE during any 30 consecutive trading day period exceeds $19.98. If this price target level is not met within 3 years of the grant date, the options associated with the grant will be forfeited. If the price target is met within 3 years of the grant date, the options associated with the grant will remain exercisable for 10 years from the grant date.</footnote>
        <footnote id="F3">1 share of Preference Stock, Plan Series A, for 1.5 shares of Holdings common stock.</footnote>
        <footnote id="F4">These securities were issued by Holdings wholly owned subsidiary Duquesne Light Company, are exchangeable for shares of Holdings Common Stock (on a 1 for 1.5 share basis), and were allocated to the reporting persons account under the matching ESOP feature of the Duquesne Light 401(k) retirement plan in exempt transactions.</footnote>
        <footnote id="F5">These securities were issued by Holdings wholly owned subsidiary Duquesne Light Company, are exchangeable for shares of Holdings Common Stock (on a 1 for 1.5 share basis), and were allocated to the reporting persons account under the matching ESOP feature of the Duquesne Light 401(k) retirement plan in exempt transactions.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>John R. Schmitt</signatureName>
        <signatureDate>2005-04-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
