<SEC-DOCUMENT>0001193125-23-173356-index.html : 20230623
<SEC-HEADER>0001193125-23-173356.hdr.sgml : 20230623
<ACCEPTANCE-DATETIME>20230623111429
ACCESSION NUMBER:		0001193125-23-173356
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		9
CONFORMED PERIOD OF REPORT:	20230430
FILED AS OF DATE:		20230623
DATE AS OF CHANGE:		20230623
EFFECTIVENESS DATE:		20230623

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Duff & Phelps Utility & Infrastructure Fund Inc.
		CENTRAL INDEX KEY:			0001515671
		IRS NUMBER:				452261437
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-22533
		FILM NUMBER:		231035646

	BUSINESS ADDRESS:	
		STREET 1:		200 SOUTH WACKER DRIVE
		STREET 2:		SUITE 500
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		(866) 270-7598

	MAIL ADDRESS:	
		STREET 1:		200 SOUTH WACKER DRIVE
		STREET 2:		SUITE 500
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Duff & Phelps Global Utility Income Fund Inc.
		DATE OF NAME CHANGE:	20110627

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Duff & Phelps Global Utility & Midstream Energy Income Fund Inc.
		DATE OF NAME CHANGE:	20110316
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d430370dncsrs.htm
<DESCRIPTION>DUFF & PHELPS UTILITY & INFRASTRUCTURE FUND INC.
<TEXT>
Document 1 - file: d430370dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d430370dex99cert.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302
<TEXT>
Document 2 - file: d430370dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CE
<SEQUENCE>3
<FILENAME>d430370dex99906ce.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906
<TEXT>
Document 3 - file: d430370dex99906ce.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.19A
<SEQUENCE>4
<FILENAME>d430370dex9919a.htm
<DESCRIPTION>SECTION 19(A) NOTICE
<TEXT>
Document 4 - file: d430370dex9919a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g430370img5a83d71c3.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g430370img5a83d71c3.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g430370img623edbd41.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g430370img623edbd41.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g430370img95b974572.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g430370img95b974572.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g430370imgba571fc54.gif
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g430370imgba571fc54.gif

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>g430370sp11_12.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: g430370sp11_12.jpg

</DOCUMENT>
</SEC-DOCUMENT>