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) June 15, 2006

BERKSHIRE HILLS BANCORP, INC.

(Exact name of registrant as specified in its charter)

Delaware |  | 0-51584 |  | 04-3510455
(State or other jurisdiction of incorporation) |  | (Commission File Number) |  | (IRS Employer Identification No.)

24 North Street, Pittsfield, Massachusetts |  | 01201
(Address of principal executive offices) |  | (Zip Code)

Registrant’s telephone number, including area code: (413) 443-5601

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))

Item 7.01 | Regulation FD.

On June 15 and 16, 2006, Michael P. Daly, President and Chief Executive Officer of Berkshire Hills Bancorp, Inc. (the “Company”), the holding company for Berkshire Bank, gave investor presentations. A copy of the slides used in Company’s presentations is attached as Exhibit 99.1 and incorporated herein by reference.

Item 9.01 | Financial Statements and Exhibits.

| (d) | Exhibits

Number |  | Description
99.1 |  | Power Point Presentation

2

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 hereunto duly authorized.

|  |  |  | BERKSHIRE HILLS BANCORP, INC.
Dated: June 15, 2006 |  |  |  | By: |  | /s/ Wayne F. Patenaude
|  |  |  |  |  |  |  | Wayne F. Patenaude
|  |  |  |  |  |  |  | Senior Vice-President and Chief
|  |  |  |  |  |  |  | Financial Officer