Exhibit 23.1

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the 2007 Equity Incentive Plan, 2007 Employee Stock Purchase Plan and 2007 Non-Employee Directors Stock Option Plan of Jazz Pharmaceuticals Inc. of our report dated March 28, 2008, with respect to the consolidated financial statements and schedule of Jazz Pharmaceuticals Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 2007, filed with the Securities and Exchange Commission.

/s/ Ernst & Young LLP

Palo Alto, California

March 28, 2008