<SEC-DOCUMENT>0001193125-15-199974-index.html : 20150526
<SEC-HEADER>0001193125-15-199974.hdr.sgml : 20150525
<ACCEPTANCE-DATETIME>20150526150836
ACCESSION NUMBER:		0001193125-15-199974
CONFORMED SUBMISSION TYPE:	S-8
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20150526
DATE AS OF CHANGE:		20150526
EFFECTIVENESS DATE:		20150526

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FINANCIAL INSTITUTIONS INC
		CENTRAL INDEX KEY:			0000862831
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				160816610
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-204446
		FILM NUMBER:		15889117

	BUSINESS ADDRESS:	
		STREET 1:		220 LIBERTY STREET
		CITY:			WARSAW
		STATE:			NY
		ZIP:			14569
		BUSINESS PHONE:		5857861100

	MAIL ADDRESS:	
		STREET 1:		220 LIBERTY STREET
		CITY:			WARSAW
		STATE:			NY
		ZIP:			14569
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8
<SEQUENCE>1
<FILENAME>d930554ds8.htm
<DESCRIPTION>FORM S-8
<TEXT>
Document 1 - file: d930554ds8.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.3
<SEQUENCE>2
<FILENAME>d930554dex43.htm
<DESCRIPTION>EX-4.3
<TEXT>
Document 2 - file: d930554dex43.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>d930554dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 3 - file: d930554dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.2
<SEQUENCE>4
<FILENAME>d930554dex232.htm
<DESCRIPTION>EX-23.2
<TEXT>
Document 4 - file: d930554dex232.htm

</DOCUMENT>
</SEC-DOCUMENT>