<SEC-DOCUMENT>0001193125-22-183988-index.html : 20220628
<SEC-HEADER>0001193125-22-183988.hdr.sgml : 20220628
<ACCEPTANCE-DATETIME>20220628164101
ACCESSION NUMBER:		0001193125-22-183988
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		8
CONFORMED PERIOD OF REPORT:	20220805
FILED AS OF DATE:		20220628
DATE AS OF CHANGE:		20220628

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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	811-07056
		FILM NUMBER:		221050694

	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>DEF 14A
<SEQUENCE>1
<FILENAME>d301959ddef14a.htm
<DESCRIPTION>NUVEEN SELECT MATURITIES MUNICIPAL FUND
<TEXT>
Document 1 - file: d301959ddef14a.htm

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<FILENAME>g301959g050a.jpg
<DESCRIPTION>GRAPHIC
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Document 2 - file: g301959g050a.jpg

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<TEXT>
Document 3 - file: g301959g055a.jpg

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<SEQUENCE>4
<FILENAME>g301959g58b43.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g301959g58b43.jpg

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<SEQUENCE>5
<FILENAME>g301959snap1.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g301959snap1.jpg

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<FILENAME>g301959snap2.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g301959snap2.jpg

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<SEQUENCE>7
<FILENAME>g301959sp0050.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g301959sp0050.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>g301959sp050a.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: g301959sp050a.jpg

</DOCUMENT>
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