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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