Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement No. 333-38372 on Form S-8 of the F.N.B. Corporation of our report dated June 22, 2010, appearing in this Annual Report on Form 11-K of the F.N.B. Corporation Progress Savings 401(k) Plan included for the year ended December 31, 2009.

/s/ Crowe Horwath LLP

South Bend, Indiana
June 22, 2010