<SEC-DOCUMENT>0000914775-10-000007-index.html : 20160923
<SEC-HEADER>0000914775-10-000007.hdr.sgml : 20160923
<ACCEPTANCE-DATETIME>20100129162200
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000914775-10-000007
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20100129

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DREYFUS INVESTMENT FUNDS
		CENTRAL INDEX KEY:			0000799295
		IRS NUMBER:				043106135
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166
		BUSINESS PHONE:		212-922-6000

	MAIL ADDRESS:	
		STREET 1:		200 PARK AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10166

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MELLON INSTITUTIONAL FUNDS INVESTMENT TRUST
		DATE OF NAME CHANGE:	20030707

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	STANDISH AYER & WOOD INVESTMENT TRUST
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

</DOCUMENT>
</SEC-DOCUMENT>