8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 8-K

CURRENT REPORT

PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of Report (Date of earliest event reported) December 3, 2009

ZENITH NATIONAL INSURANCE CORP.

(Exact name of registrant as specified in its charter)

Delaware	1-9627	95-2702776
(State or other jurisdiction	(Commission	(IRS Employer
of incorporation)	File Number)	Identification No.)

21255 Califa Street, Woodland Hills, CA	91367-5021
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number, including area code (818) 713-1000

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

oWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

oSoliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

oPre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

oPre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01.  Other Events.

On December 3, 2009, Zenith National Insurance Corp., the Registrant, issued a press release announcing a regular quarterly dividend and an extra dividend totaling $0.90 per share on its outstanding shares of common stock.  A copy of the press release is attached hereto as Exhibit 99.1 and it is incorporated herein by reference.

Item 9.01.  Financial Statements and Exhibits.

(a)  Not applicable

(b)  Not applicable

(c)  Not applicable

(d)  Exhibits

The following exhibit is filed as part of this report:

Number	Exhibit
99.1	Press Release of Zenith National Insurance Corp. dated December 3, 2009

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934 the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

		ZENITH NATIONAL INSURANCE CORP.
Dated:	December 3, 2009	By:	/s/ Kari L. Van Gundy
			Name:	Kari L. Van Gundy
			Title:	Executive Vice President
				and Chief Financial Officer

Exhibit Index

Number	Exhibit
99.1	Press Release of Zenith National Insurance Corp. dated December 3, 2009

2

EX-99.1

Exhibit 99.1

PRESS RELEASE

BUSINESS AND FINANCIAL EDITORS	WILLIAM J. OWEN
FOR IMMEDIATE RELEASE	Senior Vice President,
	Investor Relations
	818-676-3936

ZENITH DECLARES QUARTERLY AND EXTRA DIVIDEND

TOTALING $0.90

WOODLAND HILLS, CALIFORNIA, December 3, 2009  ..  .  .  ..  .  .  ..  .  .  ..  .  .  ..  .  .  ..  .  .  . The Board of Directors of Zenith National Insurance Corp. (NYSE:ZNT) today declared a regular quarterly cash dividend of $0.50 per share on its outstanding shares of common stock.  In addition, the Board of Directors declared an extra dividend of $0.40 per share on its outstanding shares of common stock.  The regular dividend of $0.50 per share will be payable February 12, 2010 to stockholders of record at the close of business on January 29, 2010.  The extra dividend of $0.40 per share will be payable December 29, 2009 to stockholders of record at the close of business on December 15, 2009.

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