8-K

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                                  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): March 21, 2007
                                                          --------------

                            SI FINANCIAL GROUP, INC.
                            ------------------------
             (Exact name of registrant as specified in its charter)

        United States                 0-50801                 84-1655232
        -------------                 -------                 ----------
(State or other jurisdiction of     (Commission             (IRS Employer
 incorporation or organization)     File Number)            Identification No.)


803 Main Street, Willimantic, Connecticut                   06226
- -----------------------------------------                   -----
(Address of principal executive offices)                    (Zip Code)

                                 (860) 423-4581
                                 --------------
              (Registrant's telephone number, including area code)

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


Check the appropriate box below if the Form 8-K filing 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))


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ITEM 5.02     DEPARTURE OF DIRECTORS OR CERTAIN OFFICERS; ELECTION OF DIRECTORS;
              ------------------------------------------------------------------
              APPOINTMENT OF CERTAIN OFFICERS; COMPENSATORY ARRANGEMENTS OF
              -------------------------------------------------------------
              CERTAIN OFFICERS.
              ----------------

      (a)- (c) Not applicable.

      (d)      On March 21, 2007, the Board of Directors of SI Financial Group,
Inc. (the "Company") elected Michael R. Garvey to the Company's Board of
Directors, as well as to the Boards of Directors of SI Bancorp, MHC and Savings
Institute Bank & Trust Company (the "Bank"). Mr. Garvey has been appointed to
the Nominating and Governance Committee of the Company and the Loan Committee of
the Bank. Mr. Garvey will receive the customary retainers, fees and benefits for
his service on the Boards of Directors and the committees thereof. Mr. Garvey
will also be eligible to participate in the Bank's Director Retirement Plan and
in the Company's 2005 Equity Incentive Plan. A copy of the press release
announcing Mr. Garvey's election to the Boards of Directors is attached as
Exhibit 99.1 and incorporated herein by reference.

      (e)  Not applicable.

ITEM 5.03  AMENDMENTS TO ARTICLES OF INCORPORATION OR BYLAWS; CHANGE IN FISCAL
           -------------------------------------------------------------------
           YEAR.
           ----

           On March 21, 2007, the Board of Directors of the Company amended
Article III, Section 2 of the Company's Bylaws to increase the number of
directors from eight to nine. The text of the revised bylaw is filed as Exhibit
3.1 and incorporated herein by reference.

ITEM 9.01  FINANCIAL STATEMENTS AND EXHIBITS.
           ---------------------------------

      (d)  Exhibits

           Number       Description
           ------       -----------

           3.1          Article III, Section 2 of the Bylaws of SI Financial
                        Group, Inc.

           99.1         Press Release dated March 22, 2007




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                                   SIGNATURES

           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 thereunto duly authorized.


                                SI FINANCIAL GROUP, INC.


Date: March 22, 2007            By: /s/ Rheo A. Brouillard
                                    --------------------------------------------
                                    Rheo A. Brouillard
                                    President and Chief Executive Officer

EX-3.1

EXHIBIT 3.1

Section 2. Number and Term. The board of directors shall consist of nine members
- --------------------------
and shall be divided into three classes as nearly equal in number as possible.
The members of each class shall be elected for a term of three years and until
their successors are elected and qualified. One class shall be elected by ballot
annually.

EX-99.1

                  [SI FINANCIAL GROUP, INC. LETTERHEAD]

                                                                 PRESS RELEASE
================================================================================
                                                           (NASDAQ Global: SIFI)

CONTACT:
Sandra Mitchell
Vice President / Director of Corporate Communications
Phone:  (860) 456-6509 / Email:  investorrelations@banksi.com

SI FINANCIAL GROUP, INC. APPOINTS NEW DIRECTOR
- ----------------------------------------------

Willimantic, CT (March 22, 2007) -SI Financial Group, Inc. (the
"Company")(NASDAQ Global Market: SIFI) President and CEO, Rheo A. Brouillard
announced that Michael R. Garvey was appointed to the Company's Board of
Directors and to the Boards of Directors of SI Bancorp, MHC and Savings
Institute Bank & Trust Company (the "bank") on March 21,2007.

         Mr. Garvey, a Certified Public Accountant, is a managing member of
Garvey & Associates, LLC and Professional Payrolls, LLC located in Mystic, CT.
In his new position, Mr. Garvey will serve on the Company's Corporate Governance
Committee and the Bank's Loan Committees.

         Mr. Garvey is a 1986 graduate of Central Connecticut State University
with a Bachelor's of Science Degree in Accounting. He is a member of the
American Institute of Certified Public Accountants, CT Society of Certified
Public Accountants, and the American Institute of Certified Public Accountants
Tax Division. He is a Board Member and Vice Chair of CPA Connect,
President-elect of the Rotary Club of Mystic and Board Member, Co-Treasurer of
the Pawcatuck Neighborhood Center, Inc.

         He resides in Pawcatuck, CT with his wife Alexa and four daughters.

         SI Financial Group, Inc. is the parent company of Savings Institute
Bank & Trust Company. Savings Institute Bank & Trust was established in 1842 and
has been committed to the needs of its neighbors and friends in Eastern
Connecticut for 165 years. Currently it operates through 19 conveniently located
offices in Hartford, New London, Tolland and Windham counties. Savings Institute
Bank & Trust can also be found on the internet at www.savingsinstitute.com.

                                    # # # #

================================================================================

THIS RELEASE CONTAINS "FORWARD-LOOKING STATEMENTS" THAT ARE BASED ON ASSUMPTIONS
AND MAY DESCRIBE FUTURE PLANS, STRATEGIES AND EXPECTATIONS OF THE COMPANY. THESE
FORWARD-LOOKING STATEMENTS ARE GENERALLY IDENTIFIED BY THE USE OF THE WORDS
"BELIEVE," "EXPECT," "INTEND," "ANTICIPATE," "ESTIMATE," "PROJECT" OR SIMILAR
EXPRESSIONS. THE COMPANY'S ABILITY TO PREDICT RESULTS OR THE ACTUAL EFFECT OF
FUTURE PLANS OR STRATEGIES IS INHERENTLY UNCERTAIN. FACTORS THAT COULD HAVE A
MATERIAL ADVERSE EFFECT ON THE OPERATIONS OF THE COMPANY AND ITS SUBSIDIARIES
INCLUDE, BUT ARE NOT LIMITED TO, CHANGES IN MARKET INTEREST RATES, REGIONAL AND
NATIONAL ECONOMIC CONDITIONS, LEGISLATIVE AND REGULATORY CHANGES, MONETARY AND
FISCAL POLICIES OF THE UNITED STATES GOVERNMENT, INCLUDING POLICIES OF THE
UNITED STATES TREASURY AND THE FEDERAL RESERVE BOARD, THE QUALITY AND
COMPOSITION OF THE LOAN OR INVESTMENT PORTFOLIOS, DEMAND FOR LOAN PRODUCTS,
DEPOSIT FLOWS, COMPETITION, DEMAND FOR FINANCIAL SERVICES IN THE COMPANY'S
MARKET AREA, CHANGES IN THE REAL ESTATE MARKET VALUES IN THE COMPANY'S MARKET
AREA, ABILITY TO OPERATE NEW BRANCH OFFICES PROFITABLY, ABILITY TO EFFECTIVELY
AND EFFICIENTLY INTEGRATE ACQUISITIONS AND CHANGES IN RELEVANT ACCOUNTING
PRINCIPLES AND GUIDELINES. THESE RISKS AND UNCERTAINTIES SHOULD BE CONSIDERED IN
EVALUATING ANY FORWARD-LOOKING STATEMENTS AND UNDUE RELIANCE SHOULD NOT BE
PLACED ON SUCH STATEMENTS. EXCEPT AS REQUIRED BY APPLICABLE LAW OR REGULATION,
THE COMPANY DOES NOT UNDERTAKE, AND SPECIFICALLY DISCLAIMS ANY OBLIGATION, TO
RELEASE PUBLICLY THE RESULT OF ANY REVISIONS THAT MAY BE MADE TO ANY
FORWARD-LOOKING STATEMENTS TO REFLECT EVENTS OR CIRCUMSTANCES AFTER THE DATE OF
THE STATEMENTS OR TO REFLECT THE OCCURRENCE OF ANTICIPATED OR UNANTICIPATED
EVENTS.