POWER OF ATTORNEY

	I, KARL F. KREBS, residing at 9130 Beach Meadow Court, Clarence Center, New
York 14032 do hereby appoint SONIA M. DUMBLETON residing at 3922 Miller Road,
Warsaw, New York 14569 and MICHAEL D. GROVER residing at 254 Linwood Avenue,
Warsaw, New York as my AGENTS, with the ability to act SEPARATELY, and hereby
REVOKE any and all prior Powers of Attorney executed by me with regard to the
following Grant of Authority.
	I hereby grant to my Agents, as my lawful attorneys in fact, the following
authority:
	1.  prepare, execute in the undersigned's name and on the undersigned's behalf,
and submit to the U.S. Securities and Exchange Commission (the "SEC") a Form ID,
including amendments thereto, and any other documents necessary or appropriate
to obtain codes and passwords enabling the undersigned to make electronic
filings with the SEC of reports required by Section 16(a) of the Securities
Exchange Act of 1934 or any rule or regulation of the SEC;
	2.  execute for and on behalf of the undersigned, in the undersigned's capacity
as an officer and/or director of Financial Institutions, Inc. (the "Company"),
Forms 3, 4, and 5 in accordance with Section (16a) of the Securities Exchange
Act of 1934 and the rules thereunder, and any other forms or reports the
undersigned may be required to file in connection with the undersigned's
ownership, acquisition, or disposition of securities of the Company;
	3.  do and perform any and all acts for and on behalf of the undersigned which
may be necessary or desirable to complete and execute any such Form 3, 4, or 5,
or other form or report, and timely file such form or report with the United
States Securities and Exchange Commission and any stock exchange or similar
authority; and
	4.  take any other action of any type whatsoever in connection with the
foregoing which, in the opinion of such attorney-in-fact, may be of benefit to,
in the best interest of, or legally required by, the undersigned, it being
understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall
contain such terms and conditions as such attorney-in-fact may approve in such
attorney-in fact's discretion.
         The undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing whatsoever
requisite, necessary, or proper to be done in the exercise of any of the rights
and powers herein granted, as fully to all intents and purposes as the
undersigned might or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney and the
rights and powers herein granted.  The undersigned acknowledges that the
foregoing attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming, nor is the Company assuming, any of the
undersigned's responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934.
        This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file Forms, 3, 4, and 5 with respect to the
undersigned's holdings of and transaction in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing delivered to the
foregoing attorneys-in-fact.

In Witness Whereof I have hereunto signed my name on OCTOBER 23, 2009.

							/s/ Karl F. Krebs
							KARL F. KREBS

STATE OF NEW YORK	)
				  ss.:
COUNTY OF WYOMING	)


           On the 23rd day of OCTOBER, in the year 2009, before me, the
undersigned, a Notary Public in and for said state, personally appeared KARL F.
KREBS, personally known to me or proved to me on the basis of satisfactory
evidence to be the person whose name is subscribed to the within instrument and
acknowledged to me that he executed the same in his capacity, and that by his
signature on the instrument, the person or the entity upon behalf of which the
person acted, executed the instrument.



						/s/ Sheryl L. Montgomery
							NOTARY PUBLIC


AGENTS SIGNATURE AND ACKNOWLEDGEMENT
OF APPOINTMENT

WE, SONIA M. DUMBLETON and MICHAEL D. GROVER, have read the foregoing Power of
Attorney.  We are the person(s) identified therein as agent(s) for the principal
named therein.

We acknowledge our legal responsibilities.


		/s/ Sonia M. Dumbleton	                /s/ Michael D. Grover
		 SONIA M. DUMBLETON		         MICHAEL D. GROVER

STATE OF NEW YORK	)
				   ss.:
COUNTY OF WYOMING	)

	On the 23rd day of OCTOBER, in the year 2009, before me, the undersigned, a
Notary Public in and for said state, personally appeared SONIA M. DUMBLETON,
personally known to me or proved to me on the basis of satisfactory evidence to
be the person whose name is subscribed to the within instrument and acknowledged
to me that she executed the same in her capacity, and that by her signature on
the instrument, the person or the entity upon behalf of which the person acted,
executed the instrument.


						/s/ Sheryl L. Montgomery
							NOTARY PUBLIC

STATE OF NEW YORK	)
				   ss.:
COUNTY OF WYOMING	)

	On the 23rd day of OCTOBER, in the year 2009, before me, the undersigned, a
Notary Public in and for said state, personally appeared MICHAEL D. GROVER,
personally known to me or proved to me on the basis of satisfactory evidence to
be the person whose name is subscribed to the within instrument and acknowledged
to me that he executed the same in his capacity, and that by his signature on
the instrument, the person or the entity upon behalf of which the person acted,
executed the instrument.


						/s/ Sheryl L. Montgomery
							NOTARY PUBLIC