EX-24
(Exhibit 24)				Power of Attorney

POWER OF ATTORNEY

The undersigned Directors of Financial Institutions, Inc. do hereby constitute and appoint each of Peter G. Humphrey and Ronald A. Miller their true and lawful attorneys and agents, to execute the Financial Institutions, Inc. Annual Report on Form 10-K for the fiscal year ended December 31, 2004 and any amendments thereto.

Dated: March 9, 2005		John E. Benjamin
		John E. Benjamin
Dated: March 9, 2005		Barton P. Dambra
		Barton P. Dambra
Dated: March 9, 2005		Samuel M. Gullo
		Samuel M. Gullo
Dated: March 9, 2005		Pamela Davis Heilman
		Pamela Davis Heilman
Dated: March 9, 2005		Susan R. Holliday
		Susan R. Holliday
Dated: March 9, 2005		Joseph F. Hurley
		Joseph F. Hurley
Dated: March 9, 2005		James E. Stitt
		James E. Stitt
Dated: March 9, 2005		John R. Tyler, Jr.
		John R. Tyler, Jr.
Dated: March 9, 2005		James H. Wyckoff
		James H. Wyckoff

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