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

                                    FORM 8-K

                                 CURRENT REPORT

                       PURSUANT TO SECTION 13 OR 15(D) OF
                       THE SECURITIES EXCHANGE ACT OF 1934

       Date of Report (Date of earliest event reported): January 18, 2006
                                                         ----------------

                       FIRST NIAGARA FINANCIAL GROUP, INC.
               --------------------------------------------------
               (Exact Name of Registrant as Specified in Charter)

           Delaware                   000-23975                  42-1556195
- ----------------------------    ---------------------         ----------------
(State or Other Jurisdiction    (Commission File No.)         (I.R.S. Employer
     of Incorporation)                                       Identification No.)

6950 South Transit Road, P.O. Box 514, Lockport, New York             14095-0514
- ---------------------------------------------------------             ----------
(Address of Principal Executive Offices)                              (Zip Code)

Registrant's telephone number, including area code: (716) 625-7500

                                 Not Applicable
          -------------------------------------------------------------
          (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K is intended to simultaneously
satisfy the filing obligation of the registrant under any of the following
provisions:

|_|   Written communications pursuant to Rule 425 under the Securities Act (17
      CFR 230.425)

|_|   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)

|_|   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

|_|   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4 (c))



Item 2.02 Results of Operations and Financial Condition

      On January 18, 2006, First Niagara Financial Group, Inc. issued a press
release disclosing fourth quarter 2005 financial results. A copy of the press
release is included as exhibit 99.1 to this report.

Item 9.01 Financial Statements and Exhibits

(a)   Not Applicable.

(b)   Not Applicable.

(c)   Exhibits.

      Exhibit No.       Description
      -----------       -----------
      99.1              Press release dated January 18, 2006



                                    SIGNATURE

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned, hereunto duly authorized.

                                            FIRST NIAGARA FINANCIAL GROUP, INC.


DATE: January 18, 2006                      By: /s/ John R. Koelmel
                                                --------------------------------
                                                John R. Koelmel
                                                Chief Financial Officer
                                                (Duly authorized representative)