EXHIBIT 23.1

            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements on
Form S-8 (Nos. 33-80301, 333-16205, 333-37138, 333-40276, 333-47033, 333-71151,
333-82752, 333-104968, and 333-109317) and Form S-3 (No. 333-103539) of PAREXEL
International Corporation of our reports dated August 26, 2005, with respect to
the consolidated financial statements and schedule of PAREXEL International
Corporation, PAREXEL International Corporation's management assessment of the
effectiveness of internal control over financial reporting, and the
effectiveness of internal control over financial reporting of PAREXEL
International Corporation, included in this Annual Report (Form 10-K) for the
year ended June 30, 2005.


                                        Ernst & Young LLP

Boston, Massachusetts
September 8, 2005