<SEC-DOCUMENT>0001193125-21-264125-index.html : 20210902
<SEC-HEADER>0001193125-21-264125.hdr.sgml : 20210902
<ACCEPTANCE-DATETIME>20210902124658
ACCESSION NUMBER:		0001193125-21-264125
CONFORMED SUBMISSION TYPE:	N-CSRS
PUBLIC DOCUMENT COUNT:		6
CONFORMED PERIOD OF REPORT:	20210630
FILED AS OF DATE:		20210902
DATE AS OF CHANGE:		20210902
EFFECTIVENESS DATE:		20210902

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NUVEEN INVESTMENT FUNDS INC
		CENTRAL INDEX KEY:			0000820892
		IRS NUMBER:				411418224
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		N-CSRS
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-05309
		FILM NUMBER:		211232338

	BUSINESS ADDRESS:	
		STREET 1:		333 WEST WACKER DR.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		312-917-8146

	MAIL ADDRESS:	
		STREET 1:		333 WEST WACKER DR.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIRST AMERICAN INVESTMENT FUNDS INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SECURAL MUTUAL FUNDS INC
		DATE OF NAME CHANGE:	19910627
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000820892
<SERIES-ID>S000005563
<SERIES-NAME>Nuveen Real Estate Securities Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000015147
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>FREAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000015149
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>FRLCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000015150
<CLASS-CONTRACT-NAME>Class R3
<CLASS-CONTRACT-TICKER-SYMBOL>FRSSX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000015151
<CLASS-CONTRACT-NAME>Class I
<CLASS-CONTRACT-TICKER-SYMBOL>FARCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000126484
<CLASS-CONTRACT-NAME>Class R6
<CLASS-CONTRACT-TICKER-SYMBOL>FREGX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000820892
<SERIES-ID>S000020012
<SERIES-NAME>Nuveen Global Infrastructure Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000056118
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>FGIAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000056119
<CLASS-CONTRACT-NAME>Class I
<CLASS-CONTRACT-TICKER-SYMBOL>FGIYX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000070757
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>FGNCX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000070758
<CLASS-CONTRACT-NAME>Class R3
<CLASS-CONTRACT-TICKER-SYMBOL>FGNRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000171406
<CLASS-CONTRACT-NAME>Class R6
<CLASS-CONTRACT-TICKER-SYMBOL>FGIWX
</CLASS-CONTRACT>
</SERIES>
<SERIES>
<OWNER-CIK>0000820892
<SERIES-ID>S000033768
<SERIES-NAME>Nuveen Real Asset Income Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000104365
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>NRIAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000104366
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>NRICX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000104368
<CLASS-CONTRACT-NAME>Class I
<CLASS-CONTRACT-TICKER-SYMBOL>NRIIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000171407
<CLASS-CONTRACT-NAME>Class R6
<CLASS-CONTRACT-TICKER-SYMBOL>NRIFX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>N-CSRS
<SEQUENCE>1
<FILENAME>d113763dncsrs.htm
<DESCRIPTION>NUVEEN INVESTMENT FUNDS, INC.
<TEXT>
Document 1 - file: d113763dncsrs.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.CERT
<SEQUENCE>2
<FILENAME>d113763dex99cert.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT
<TEXT>
Document 2 - file: d113763dex99cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.906CERT
<SEQUENCE>3
<FILENAME>d113763dex99906cert.htm
<DESCRIPTION>CERTIFICATION PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT
<TEXT>
Document 3 - file: d113763dex99906cert.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g113763g20s53.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g113763g20s53.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g113763g58b43.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g113763g58b43.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g113763g99h99.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g113763g99h99.jpg

</DOCUMENT>
</SEC-DOCUMENT>