Consent of Independent Registered Public Accounting Firm

We consent to the references to our firm in this Post-Effective Amendment to the Registration Statement on Form N-1A of Advisors Series Trust and to the incorporation by reference of our report dated December 13, 2005 relating to the financial statements and financial highlights of CastleRock Fund, a series of the Advisors Series Trust. Such financial statements and financial highlights appear in the 2005 Annual Report to Shareholders which is also incorporated by reference into the Registration Statement.