**UNITED      STATES SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON,      D.C.  20549**

**FORM      10-Q/A**

**Amendment      No. 1**

**(Mark      One)**

**ý  Amended      quarterly report pursuant to Section 13 or 15(d) of the Securities Exchange      Act      of 1934**

**For      the quarterly period ended March 31, 2007**

**OR**

**o  Transition      report pursuant to section 13 or 15(d) of the Securities Exchange Act of      1934**

**For      the transition period from ______________ to _____________**

**Commission      File Number 000-51369**

**United      Financial Bancorp, Inc.**

| **                                   Federal                   ** | **                     83-0395247     ** |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------|
| (State                or other jurisdiction of                                                                                                                                                                                                                  | (I.R.S.                Employer                                                       |
| incorporation                or organization)                                                                                                                                                                                                                   | Identification                Number)                                                 |

**95      Elm Street, West Springfield, Massachusetts 01089**

**(413)      787-1700**

| Large                accelerated filer o | Accelerated                filer   ý | Non-accelerated                filer     o |
|------------------------------------------|----------------------------------------------------------|---------------------------------------------------------------------|

**Common      stock, $0.01 par value**

**17,071,853      shares outstanding as of May 3, 2007**

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**EXPLANATORY      NOTE**

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**United      Financial Bancorp, Inc.**

|                            |                                                                                                                                 | Page   |
|---------------------------------|--------------------------------------------------------------------------------------------------------------------------------------|--------|
|                            |                                                                                                                                 |   |
| **SIGNATURES**                  |                                                                                                                                 | 1      |
|                            |                                                                                                                                 |   |
| **Exhibit                31.1** | **Certification                of Chief Executive Officer Pursuant to                Section 302 of the Sarbanes-Oxley Act of 2002** | 2      |
|                            |                                                                                                                                 |   |
| **Exhibit                31.2** | **Certification                of Chief Financial Officer Pursuant to                Section 302 of the Sarbanes-Oxley Act of 2002** | 3      |

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**SIGNATURES**

|                                                                                 | **United                Financial Bancorp, Inc.** |
|--------------------------------------------------------------------------------------|---------------------------------------------------|
|                                                                                 |                                              |   |
|                                                                                 |                                              |   |
| Date:                May 31,                2007       | By:                                               | /s/                Richard B.                Collins                              |
|                                                                                 |                                              | Richard                B. Collins |
|                                                                                 |                                              | President                and Chief Executive Officer |
|                                                                                 |                                              |   |
|                                                                                 |                                              |   |
| Date:                May 31,                2007       | By:                                               | /s/                Mark A.                Roberts                                |
|                                                                                 |                                              | Mark                A. Roberts |
|                                                                                 |                                              | Executive                Vice President and Chief |
|                                                                                 |                                              | Financial                Officer |