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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001359933-06-000002.txt : 20060503
<SEC-HEADER>0001359933-06-000002.hdr.sgml : 20060503
<ACCEPTANCE-DATETIME>20060503153616
ACCESSION NUMBER:		0001359933-06-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20060502
FILED AS OF DATE:		20060503
DATE AS OF CHANGE:		20060503

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DNP SELECT INCOME FUND INC
		CENTRAL INDEX KEY:			0000806628
		IRS NUMBER:				363480989
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 32760
		CITY:			LOUISVILLE
		STATE:			KY
		ZIP:			40232
		BUSINESS PHONE:		3123685510

	MAIL ADDRESS:	
		STREET 1:		PO BOX 32760
		CITY:			LOUISVILLE
		STATE:			KY
		ZIP:			40232

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DUFF & PHELPS SELECTED UTILITIES INC
		DATE OF NAME CHANGE:	19910429

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Smith Randle L
		CENTRAL INDEX KEY:			0001359933

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-04915
		FILM NUMBER:		06803681

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		(312) 630-4684

	MAIL ADDRESS:	
		STREET 1:		55 EAST MONROE STREET
		STREET 2:		SUITE 3600
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60603
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-05-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000806628</issuerCik>
        <issuerName>DNP SELECT INCOME FUND INC</issuerName>
        <issuerTradingSymbol>DNP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001359933</rptOwnerCik>
            <rptOwnerName>Smith Randle L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>55 EAST MONROE STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3600</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60603</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>Officer of Adviser</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common</value>
            </securityTitle>
            <transactionDate>
                <value>2006-05-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>10.03</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Maureen Carney poa for Randle L Smith</signatureName>
        <signatureDate>2006-05-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>exhibit99smithdnp.txt
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
POWER OF ATTORNEY                                Exhibit 99

Know all by these presents, that the undersigned hereby
constitutes and appoints each of Joyce Riegel, Maureen Carney
and Angela Rawlings, signing singly,the undersigned's
attorney-in-fact to:

(1)   execute for and on behalf of the undersigned,
in the undersigned's capacity as an affiliated person
of the investment adviser of DNP Select Income Fund Inc.
(the "Fund"), Forms 3, 4 and 5 in accordance with
Section 16(a) of the Securities Exchange Act of 1934
and the rules thereunder;

(2)   do and perform any and all acts for and on behalf of the
undersigned which may be necessary or desirable to complete and
execute any such Form 3, 4, or 5, to complete and execute any
amendment or amendments thereto and to timely file such forms
and/or amendments with the United States Securities and Exchange
Commission and any stock exchange or similar authority; and

(3)   take any other action of any type whatsoever in connection
with the foregoing which, in the opinion of such attorney-in-fact,
may be of benefit to, in the best interest of, or legally required
by, the undersigned, it being understood that the documents
executed by such attorney-in-fact on behalf of the undersigned
pursuant to this Power of Attorney shall be in such form and
shall contain suchterms and conditions as such attorney-in-fact
may approve in such attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact
full power and authority to do and perform any and every act
and thing whatsoever requisite, necessary or proper to be done
in the exercise of any of the rights and powers herein granted,
as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of substitution
or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of
thispower of attorney and the rights and powers herein granted.
The undersigned acknowledges that the foregoing attorneys-in-fact,
in serving in such capacity at the request of the undersigned, are
not assuming, nor is the Fund or any of its advisors assuming,
any of the undersigned's responsibilities to comply with
Section 16 of the Securities Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Forms 3, 4
and 5 with respect to the undersigned's holdings of and transactions
in securities issued by the Fund, unless earlier revoked by
the undersignedin a signed writing delivered to the
foregoing attorneys-in-fact.

IN WITNESS WHEREOF, the undersigned has caused this
Power of Attorney to be executed as of this  2 day of  May, 2006.

/s/ Randle L Smith
Randle L Smith



</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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