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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-05-30</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001592057</issuerCik>
        <issuerName>Enviva Partners, LP</issuerName>
        <issuerTradingSymbol>EVA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001605462</rptOwnerCik>
            <rptOwnerName>Enviva Holdings, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7200 WISCONSIN AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1000</rptOwnerStreet2>
            <rptOwnerCity>BETHESDA</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20814</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001605459</rptOwnerCik>
            <rptOwnerName>Enviva Holdings GP, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7200 WISCONSIN AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1000</rptOwnerStreet2>
            <rptOwnerCity>BETHESDA</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20814</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001609464</rptOwnerCik>
            <rptOwnerName>R/C Wood Pellet Investment Partnership, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RIVERSTONE HOLDINGS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>712 FIFTH AVENUE, 36TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001609462</rptOwnerCik>
            <rptOwnerName>Riverstone/Carlyle Renewable Energy Partners II, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RIVERSTONE HOLDINGS LLC</rptOwnerStreet1>
            <rptOwnerStreet2>712 FIFTH AVENUE, 36TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001587428</rptOwnerCik>
            <rptOwnerName>R/C Renewable Energy GP II, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>712 FIFTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>36TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001605461</rptOwnerCik>
            <rptOwnerName>Enviva MLP Holdco, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7200 WISCONSIN AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1000</rptOwnerStreet2>
            <rptOwnerCity>BETHESDA</rptOwnerCity>
            <rptOwnerState>MD</rptOwnerState>
            <rptOwnerZipCode>20814</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common units representing limited partner interests</value>
            </securityTitle>
            <transactionDate>
                <value>2018-05-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5897684</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11905138</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Enviva MLP Holdco</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Subordinated Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2018-05-30</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5897684</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common units representing limited partner interests</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5897684</value>
                    <footnoteId id="F1"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Enviva MLP Holdco</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On May 30, 2018, each subordinated unit representing limited partner interests in Enviva Partners, LP (the &quot;Issuer&quot;) held by Enviva MLP Holdco, LLC (&quot;Enviva MLP Holdco&quot;) converted into one common unit representing limited partner interests in the Partnership pursuant to the terms of the Issuer's First Amended and Restated Agreement of Limited Partnership.</footnote>
        <footnote id="F2">This Form 4 is being filed jointly by R/C Renewable Energy GP II, L.L.C. (&quot;R/C Renewable Energy GP&quot;), Riverstone/Carlyle Renewable Energy Partners II, L.P. (&quot;R/C Renewable Energy Partners&quot;), R/C Wood Pellet Investment Partnership, L.P. (&quot;R/C Partnership&quot;), Enviva Holdings GP, LLC (&quot;Holdings GP&quot;), Enviva Holdings, LP (&quot;Holdings&quot;) and Enviva MLP Holdco. R/C Renewable Energy GP is the general partner of R/C Renewable Energy Partners, which is the general partner of R/C Partnership, which is the sole member of Holdings GP, which is the general partner of Holdings, which is the sole member of Enviva MLP Holdco.</footnote>
        <footnote id="F3">Accordingly, R/C Renewable Energy GP, R/C Renewable Energy Partners, R/C Partnership, Holdings GP and Holdings may be deemed to indirectly beneficially own securities of the Issuer, a subsidiary of Holdings, owned directly by Enviva MLP Holdco, but disclaim such beneficial ownership except to the extent of their respective pecuniary interest therein.</footnote>
        <footnote id="F4">Holdings may be deemed to be a director by deputization as a result of the ability of Enviva MLP Holdco, Holdings' wholly owned subsidiary, to appoint the directors of Enviva Partners GP, LLC.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>ENVIVA HOLDINGS, LP By: Enviva Holdings GP, LLC, its general partner By: /s/ Jason E. Paral Name: Jason E. Paral Title: Vice President, Associate General Counsel and Secretary</signatureName>
        <signatureDate>2018-05-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>ENVIVA HOLDINGS GP, LLC By: /s/ Jason E. Paral Name: Jason E. Paral Title: Vice President, Associate General Counsel and Secretary</signatureName>
        <signatureDate>2018-05-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>ENVIVA MLP HOLDCO, LLC By: /s/ Jason E. Paral Name: Jason E. Paral Title: Vice President, Associate General Counsel and Secretary</signatureName>
        <signatureDate>2018-05-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>R/C WOOD PELLET INVESTMENT PARTNERSHIP, L.P. By:Riverstone/Carlyle Renewable Energy Partners II, L.P., its general partner By:R/C Renewable Energy GP II, L.L.C., its general partner By:/s/ Peter Haskopoulos Name:Peter Haskopoulos Title:Authorized Person</signatureName>
        <signatureDate>2018-05-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>RIVERSTONE/CARLYLE RENEWABLE ENERGY PARTNERS II, L.P. By: R/C Renewable Energy GP II, L.L.C., its general partner By: /s/ Peter Haskopoulos Name: Peter Haskopoulos Title: Authorized Person</signatureName>
        <signatureDate>2018-05-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>R/C RENEWABLE ENERGY GP II, L.L.C. By: /s/ Peter Haskopoulos Name: Peter Haskopoulos Title: Authorized Person</signatureName>
        <signatureDate>2018-05-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
