<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>
<periodOfReport>2002-12-01</periodOfReport>
    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001085869</issuerCik>
        <issuerName>PERFICIENT INC</issuerName>
        <issuerTradingSymbol>PRFT</issuerTradingSymbol>
</issuer>
<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001268713</rptOwnerCik>
            <rptOwnerName>MAULDIN MARK D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1120 S. CAPITAL OF TEXAS HWY.</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 220, BLDG. 3</rptOwnerStreet2>
            <rptOwnerCity>AUSTIN</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78746</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>1</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle>CFO</officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<nonDerivativeTable></nonDerivativeTable>
<derivativeTable><derivativeHolding><securityTitle><value>Option</value>
</securityTitle>
<conversionOrExercisePrice><value>13.25</value>
</conversionOrExercisePrice>
<exerciseDate><value>2001-07-01</value>
<footnoteId id="F1"></footnoteId>
</exerciseDate>
<expirationDate><value>2010-06-21</value>
</expirationDate>
<underlyingSecurity><underlyingSecurityTitle><value>Common stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares><value>12500</value>
</underlyingSecurityShares>
</underlyingSecurity>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding><securityTitle><value>Option</value>
</securityTitle>
<conversionOrExercisePrice><value>10.00</value>
</conversionOrExercisePrice>
<exerciseDate><value>2001-08-01</value>
<footnoteId id="F2"></footnoteId>
</exerciseDate>
<expirationDate><value>2010-07-28</value>
</expirationDate>
<underlyingSecurity><underlyingSecurityTitle><value>Common stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares><value>2500</value>
</underlyingSecurityShares>
</underlyingSecurity>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding><securityTitle><value>Option</value>
</securityTitle>
<conversionOrExercisePrice><value>12.125</value>
</conversionOrExercisePrice>
<exerciseDate><value>2001-10-01</value>
<footnoteId id="F3"></footnoteId>
</exerciseDate>
<expirationDate><value>2010-09-25</value>
</expirationDate>
<underlyingSecurity><underlyingSecurityTitle><value>Common stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares><value>5000</value>
</underlyingSecurityShares>
</underlyingSecurity>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding><securityTitle><value>Option</value>
</securityTitle>
<conversionOrExercisePrice><value>3.75</value>
</conversionOrExercisePrice>
<exerciseDate><value>2002-01-01</value>
<footnoteId id="F4"></footnoteId>
</exerciseDate>
<expirationDate><value>2011-03-28</value>
</expirationDate>
<underlyingSecurity><underlyingSecurityTitle><value>Common stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares><value>15000</value>
</underlyingSecurityShares>
</underlyingSecurity>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding><securityTitle><value>Option</value>
</securityTitle>
<conversionOrExercisePrice><value>0.74</value>
</conversionOrExercisePrice>
<exerciseDate><value>2001-04-17</value>
<footnoteId id="F5"></footnoteId>
</exerciseDate>
<expirationDate><value>2011-04-17</value>
</expirationDate>
<underlyingSecurity><underlyingSecurityTitle><value>Common stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares><value>6618</value>
</underlyingSecurityShares>
</underlyingSecurity>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
<derivativeHolding><securityTitle><value>Option</value>
</securityTitle>
<conversionOrExercisePrice><value>1.15</value>
</conversionOrExercisePrice>
<exerciseDate><value>2003-07-01</value>
<footnoteId id="F6"></footnoteId>
</exerciseDate>
<expirationDate><value>2012-06-25</value>
</expirationDate>
<underlyingSecurity><underlyingSecurityTitle><value>Common stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares><value>20000</value>
</underlyingSecurityShares>
</underlyingSecurity>
<ownershipNature><directOrIndirectOwnership><value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
</derivativeTable>
<footnotes><footnote id="F1">1/3 of option grant is exercisable on 07/01/2001 and the remainder is exercisable ratably over the subsequent 8 quarters.</footnote>
<footnote id="F2">1/3 of option grant is exercisable on 08/01/2001 and the remainder is exercisable ratably over the subsequent 8 quarters.</footnote>
<footnote id="F3">1/3 of option grant is exercisable on 10/01/2001 and the remainder is exercisable ratably over the subsequent 8 quarters.</footnote>
<footnote id="F4">1/3 of option grant is exercisable on 01/01/2002 and the remainder is exercisable ratably over the subsequent 8 quarters.</footnote>
<footnote id="F5">1/3 of option grant is exercisable on 04/17/2001 and the remainder is exercisable ratably over the subsequent 2 quarters.</footnote>
<footnote id="F6">1/3 of option grant is exercisable on 07/01/2003 and the remainder is exercisable ratably over the subsequent 8 quarters.</footnote>
</footnotes>
<ownerSignature><signatureName>Mark D. Mauldin</signatureName>
<signatureDate>2003-11-14</signatureDate>
</ownerSignature>
</ownershipDocument>

