<SEC-DOCUMENT>0001752724-21-115338-index.html : 20210527
<SEC-HEADER>0001752724-21-115338.hdr.sgml : 20210527
<ACCEPTANCE-DATETIME>20210527125420
ACCESSION NUMBER:		0001752724-21-115338
CONFORMED SUBMISSION TYPE:	NPORT-P
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210331
FILED AS OF DATE:		20210527
PERIOD START:           	20210331

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NUVEEN SELECT MATURITIES MUNICIPAL FUND
		CENTRAL INDEX KEY:			0000890119
		IRS NUMBER:				363837799
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0531

	FILING VALUES:
		FORM TYPE:		NPORT-P
		SEC ACT:		1940 Act
		SEC FILE NUMBER:	811-07056
		FILM NUMBER:		21970677

	BUSINESS ADDRESS:	
		STREET 1:		333 WEST WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129177200

	MAIL ADDRESS:	
		STREET 1:		333 W WACKER DRIVE
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NUVEEN INTERMEDIATE OPPORTUNITY MUNICIPAL FUND
		DATE OF NAME CHANGE:	19600201
</SEC-HEADER>
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<TYPE>NPORT-P
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

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