EXHIBIT 23.1

Consent of Independent Registered Public Accounting Firm

LivePerson, Inc.

New York, New York

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (No. 333-112019, 333-112018, 333-136249 and 333-147929) and Form S-8 (No. 333-34230, 333-147572 and 333-159850) of LivePerson, Inc. of our reports dated March 10, 2010, relating to the consolidated financial statements and the effectiveness of LivePerson, Inc.’s internal control over financial reporting, which appear in this Form 10-K.

/s/ BDO Seidman, LLP

New York, New York

March 10, 2010