UNITED STATES SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549******FORM 8-K**CURRENT REPORTPursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):** May 18, 2006  ****          FirstCommonwealth FinancialCorporation            **(Exact name ofregistrant as specified in its charter)

| **   Pennsylvania   ** |   | **    0-11242    ** |   | **     25-1428528      ** |
|------------------------------------------------------|--------|-------------------------------------------------------------|--------|----------------------------------------------------------------------------------|
| (State or  other jurisdiction  of incorporation)     |   | (Commission  File Number)                                   |   | (IRS Employer  Identification Number)                                            |

 

|                                                                                                                                        |   |                                                                  |
|---------------------------------------------------------------------------------------------------------------------------------------------|--------|-----------------------------------------------------------------------|
| **        22  N. Sixth Street, Indiana,  PA         ** |   | **     15701     ** |
| (Address of  Principal Executive Offices)                                                                                                   |   | (Zip Code)                                                            |

 

Registrant's telephonenumber, including area code:  **(724)349-7220**   

Check the appropriate box below if the Form 8-K filing is intended tosimultaneously satisfy the filing obligation of the registrant under any of thefollowing provisions:[ ] Written communication pursuant to Rule 425 under the Securities Act(17 CFR 230.425)[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17CFR 240.14a-12)[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under theExchange Act (17 CFR 240.14d-2(b))[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under theExchange Act (17 CFR 240.13e-4(c))

----

Item7.01     REGULATION FD DISCLOSUREOn May 18, 2006, the President and CEO of First Commonwealth FinancialCorporation sent a letter to shareholders announcing the Corporation's earningsfor the three month period ended March 31, 2006.  A copy of this letter and the related financial disclosures arefurnished herein as exhibit 99.Item 9.01     FINANCIAL STATEMENTS AND EXHIBITS

| (c)    | Exhibits                                                                                                              |
|--------|-----------------------------------------------------------------------------------------------------------------------|
|   | Exhibit 99 First Commonwealth Financial Corporation - President and CEO's  Letter to Shareholders mailed May 18, 2006 |

 

----

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, theregistrant has duly caused this report to be signed on its behalf by theundersigned hereunto duly authorized.Dated:  May 18, 2006                              FIRSTCOMMONWEALTH FINANCIAL CORPORATION                                   (Registrant)                              By:  /S/JOSEPHE. O'DELL                                                      JosephE. O'Dell                                   Presidentand Chief Executive Officer                                 

----