<SEC-DOCUMENT>0000876661-23-000619-index.html : 20230731
<SEC-HEADER>0000876661-23-000619.hdr.sgml : 20230731
<ACCEPTANCE-DATETIME>20230731155037
ACCESSION NUMBER:		0000876661-23-000619
CONFORMED SUBMISSION TYPE:	25-NSE
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20230731
DATE AS OF CHANGE:		20230731
EFFECTIVENESS DATE:		20230731

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NUVEEN SENIOR INCOME FUND
		CENTRAL INDEX KEY:			0001093428
		IRS NUMBER:				364316644
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			0731

	FILING VALUES:
		FORM TYPE:		25-NSE
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15309
		FILM NUMBER:		231127256

	BUSINESS ADDRESS:	
		STREET 1:		333 WEST WACKER DR.
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		3129177700

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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEW YORK STOCK EXCHANGE LLC
		CENTRAL INDEX KEY:			0000876661
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			NY

	FILING VALUES:
		FORM TYPE:		25-NSE

	BUSINESS ADDRESS:	
		STREET 1:		11 WALL STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005
		BUSINESS PHONE:		212-656-2060

	MAIL ADDRESS:	
		STREET 1:		11 WALL STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEW YORK STOCK EXCHANGE INC
		DATE OF NAME CHANGE:	19910628
</SEC-HEADER>
<DOCUMENT>
<TYPE>25-NSE
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.25
<SEQUENCE>2
<FILENAME>ruleprovisionnotice.htm
<TEXT>
Document 2 - file: ruleprovisionnotice.htm

</DOCUMENT>
</SEC-DOCUMENT>