UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 15

CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934.

Commission File Number 001-14879

Great Lakes Bancorp, Inc.
(Exact name of registrant as specified in its charter)

2421 Main Street, Buffalo, New York 14214

(716) 961-1900
(Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

Common Stock, par value $0.01 per share

(Title of each class of securities covered by this Form)

Not Applicable

(Titles of all other classes of securities for which a duty to file reports under section 13(a) or 15(d) remains)

Please place an X in the box(es) to designate the appropriate rule provision(s) relied upon to terminate or suspend the duty to file reports: 

Rule 12g-4(a)(1)(i) X Rule 12h-3(b)(1)(i)
Rule 12g-4(a)(1)(ii) Rule 12h-3(b)(1)(ii)
Rule 12g-4(a)(2)(i) Rule 12h-3(b)(2)(i)
Rule 12g-4(a)(2)(ii) Rule 12h-3(b)(2)(ii)
 Rule 15d-6

Approximate number of holders of record as of the certification or notice date:
-0- ---

Pursuant to the requirements of the Securities Exchange Act of 1934, Great Lakes Bancorp, Inc. has caused this certification/notice to be signed on its behalf by the undersigned duly authorized person. 

Date: February 15, 2008 By: /s/ John R. Koelmel
 ----------------- -----------------------------------
 John R. Koelmel
 President and Chief Executive Officer
 First Niagara Financial Group, Inc.
 (Successor by merger to Great Lakes Bancorp, Inc.)

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