Exhibit 23


            Consent of Independent Registered Public Accounting Firm


We consent to the incorporation by reference in the Registration Statement
(Form S-8 No. 333-109317) pertaining to the PAREXEL International Corporation
401(k) Retirement Savings Plan of our report dated September 24, 2004, with
respect to the financial statements and schedule of the PAREXEL International
Corporation 401(k) Retirement Savings Plan included in this Annual Report (Form
11-K) for the year ended December 31, 2003.


                                         ERNST & YOUNG LLP


Boston, Massachusetts
December 6, 2004