Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Registration Statement on Form S-8 of our report dated February 13, 2008 relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appears in the 2007 Annual Report to Stockholders of Zenith National Insurance Corp. (the ‘‘Company’’), which is incorporated by reference in the Company’s Annual Report on Form 10-K for the year ended December 31, 2007.  We also consent to the incorporation by reference of our report dated February 13, 2008 relating to the financial statement schedules, which appears in such Annual Report on Form   10-K.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

Los Angeles, California

May 14, 2008