    <SEC-DOCUMENT>0001193125-17-217894-index.html : 20170629
    <SEC-HEADER>0001193125-17-217894.hdr.sgml : 20170629
    <ACCEPTANCE-DATETIME>20170629125805
    ACCESSION NUMBER:		0001193125-17-217894
    CONFORMED SUBMISSION TYPE:	N-CSRS
    PUBLIC DOCUMENT COUNT:		10
    CONFORMED PERIOD OF REPORT:	20170430
    FILED AS OF DATE:		20170629
    DATE AS OF CHANGE:		20170629
    EFFECTIVENESS DATE:		20170629

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			Duff & Phelps Global Utility Income 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:		17937608

    	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 & Midstream Energy Income Fund Inc.
    		DATE OF NAME CHANGE:	20110316
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>N-CSRS
    <SEQUENCE>1
    <FILENAME>d354791dncsrs.htm
    <DESCRIPTION>DUFF & PHELPS GLOBAL UTILITY INCOME FUND INC.
    <TEXT>
    Document 1 - file: d354791dncsrs.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.CERT
    <SEQUENCE>2
    <FILENAME>d354791dex99cert.htm
    <DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302
    <TEXT>
    Document 2 - file: d354791dex99cert.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.906CE
    <SEQUENCE>3
    <FILENAME>d354791dex99906ce.htm
    <DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906
    <TEXT>
    Document 3 - file: d354791dex99906ce.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.12(C)
    <SEQUENCE>4
    <FILENAME>d354791dex9912c.htm
    <DESCRIPTION>19(A) NOTICES
    <TEXT>
    Document 4 - file: d354791dex9912c.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>g354791g0615225043129.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: g354791g0615225043129.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>g354791g0615225043223.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: g354791g0615225043223.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>g354791g25y42.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: g354791g25y42.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>g354791g28f24.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: g354791g28f24.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>g354791g41y89.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: g354791g41y89.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>g354791g90j82.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: g354791g90j82.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>