<SEC-DOCUMENT>0001104659-23-057528-index.html : 20230509
<SEC-HEADER>0001104659-23-057528.hdr.sgml : 20230509
<ACCEPTANCE-DATETIME>20230509091926
ACCESSION NUMBER:		0001104659-23-057528
CONFORMED SUBMISSION TYPE:	497
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230509
DATE AS OF CHANGE:		20230509
EFFECTIVENESS DATE:		20230509

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MAINSTAY FUNDS
		CENTRAL INDEX KEY:			0000787441
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1031

	FILING VALUES:
		FORM TYPE:		497
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	033-02610
		FILM NUMBER:		23900278

	BUSINESS ADDRESS:	
		STREET 1:		51 MADISON AVE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10010
		BUSINESS PHONE:		2125767000

	MAIL ADDRESS:	
		STREET 1:		51 MADISON AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10010

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MACKAY SHIELDS MAINSTAY SERIES FUND /NY/
		DATE OF NAME CHANGE:	19911126

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MACKAY SHIELDS SERIES FUND
		DATE OF NAME CHANGE:	19860506
<SERIES-AND-CLASSES-CONTRACTS-DATA>
<EXISTING-SERIES-AND-CLASSES-CONTRACTS>
<SERIES>
<OWNER-CIK>0000787441
<SERIES-ID>S000006902
<SERIES-NAME>MainStay MacKay International Equity Fund
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018713
<CLASS-CONTRACT-NAME>Class A
<CLASS-CONTRACT-TICKER-SYMBOL>MSEAX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018714
<CLASS-CONTRACT-NAME>Class B
<CLASS-CONTRACT-TICKER-SYMBOL>MINEX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018715
<CLASS-CONTRACT-NAME>Class C
<CLASS-CONTRACT-TICKER-SYMBOL>MIECX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018716
<CLASS-CONTRACT-NAME>Class I
<CLASS-CONTRACT-TICKER-SYMBOL>MSIIX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018717
<CLASS-CONTRACT-NAME>Class R1
<CLASS-CONTRACT-TICKER-SYMBOL>MIERX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000018718
<CLASS-CONTRACT-NAME>Class R2
<CLASS-CONTRACT-TICKER-SYMBOL>MIRRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000030957
<CLASS-CONTRACT-NAME>Class R3
<CLASS-CONTRACT-TICKER-SYMBOL>MIFRX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000060798
<CLASS-CONTRACT-NAME>INVESTOR CLASS
<CLASS-CONTRACT-TICKER-SYMBOL>MINNX
</CLASS-CONTRACT>
<CLASS-CONTRACT>
<CLASS-CONTRACT-ID>C000185568
<CLASS-CONTRACT-NAME>Class R6
<CLASS-CONTRACT-TICKER-SYMBOL>MIFDX
</CLASS-CONTRACT>
</SERIES>
</EXISTING-SERIES-AND-CLASSES-CONTRACTS>
</SERIES-AND-CLASSES-CONTRACTS-DATA>
</SEC-HEADER>
<DOCUMENT>
<TYPE>497
<SEQUENCE>1
<FILENAME>tm2314167-1_497.htm
<DESCRIPTION>497
<TEXT>
Document 1 - file: tm2314167-1_497.htm

</DOCUMENT>
</SEC-DOCUMENT>