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  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">UNITED
  STATES</font></b></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">SECURITIES
  AND EXCHANGE COMMISSION</font></b></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">WASHINGTON,
  DC 20549</font></b></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT
  REPORT</font></b></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">PURSUANT
  TO SECTION&nbsp;13 OR 15(d)&nbsp;OF THE</font></b></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">SECURITIES
  EXCHANGE ACT OF 1934</font></b></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="45%" valign="top" style="padding:0in 0in 0in 0in;width:45.42%;">
    <p style="margin:0in 0in .0001pt;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">Date
    of Report (Date of earliest event reported)</font></p>
    </td>
    <td width="21%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:21.5%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">May&nbsp;13, 2008</font></b></p>
    </td>
    <td width="33%" valign="top" style="padding:0in 0in 0in 0in;width:33.08%;">
    <p style="margin:0in 0in .0001pt;"><font size="3" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
   </tr>
  </table>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 1.0pt 0in;">
  
  <p style="border:none;margin:0in 0in .0001pt;padding:0in;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">ZENITH NATIONAL INSURANCE CORP.</font></b></p>
  
  </div>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">(Exact name of registrant as specified in its
  charter)</font></b></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div align="center">
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="32%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Delaware</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="3" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" colspan="3" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">1-9627</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="3" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">95-2702776</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="32%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(State or other jurisdiction<br>
    </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">of incorporation)</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="border:none;padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" colspan="3" valign="top" style="border:none;padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(Commission<br>
    </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">File Number)</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="border:none;padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(IRS Employer<br>
    </font></b><b><font size="2" style="font-size:10.0pt;font-weight:bold;">Identification No.)</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.0%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="32%" valign="top" style="padding:0in 0in 0in 0in;width:32.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="53%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:53.08%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="padding:0in 0in 0in 0in;width:2.5%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="44%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:44.42%;">
    <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="53%" colspan="3" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:53.08%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">21255 Califa Street, Woodland Hills, CA</font></b></p>
    </td>
    <td width="2%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:2.5%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="44%" colspan="3" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:44.42%;">
    <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">91367-5021</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="53%" colspan="3" valign="top" style="border:none;padding:0in 0in 0in 0in;width:53.08%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of principal executive offices)</font></p>
    </td>
    <td width="2%" valign="bottom" style="border:none;padding:0in 0in 0in 0in;width:2.5%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="44%" colspan="3" valign="top" style="border:none;padding:0in 0in 0in 0in;width:44.42%;">
    <p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Zip Code)</font></p>
    </td>
   </tr>
   <tr height="0">
    <td width="239" style="border:none;"></td>
    <td width="15" style="border:none;"></td>
    <td width="143" style="border:none;"></td>
    <td width="19" style="border:none;"></td>
    <td width="78" style="border:none;"></td>
    <td width="15" style="border:none;"></td>
    <td width="239" style="border:none;"></td>
   </tr>
  </table>
  
  </div>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="47%" valign="top" style="padding:0in 0in 0in 0in;width:47.92%;">
    <p style="margin:0in 0in .0001pt;"><font size="3" face="Times New Roman" style="font-size:12.0pt;">Registrant&#146;s
    telephone number, including area code </font></p>
    </td>
    <td width="52%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:52.08%;">
    <p style="margin:0in 0in .0001pt;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">(818) 713-1000</font></b></p>
    </td>
   </tr>
  </table>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.0%;">
   <tr>
    <td width="100%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:100.0%;">
    <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Not Applicable</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="100%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:100.0%;">
    <p style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(Former name or former address,
    if changed since last report)</font></b></p>
    </td>
   </tr>
  </table>
  
  <p style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box below if the Form&nbsp;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):</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">[ ]</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Written communications pursuant to Rule&nbsp;425
  under the Securities Act (17 CFR 230.425)</p>
  
  <p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">[ ]</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Soliciting material pursuant to Rule&nbsp;14a-12
  under the Exchange Act (17 CFR 240.14a-12)</p>
  
  <p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">[ ]</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Pre-commencement communications pursuant
  to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act (17 CFR 240.14d-2(b))</p>
  
  <p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman">&nbsp;</font></p>
  
  <p style="font-size:10.0pt;margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">[ ]</font><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>Pre-commencement communications pursuant
  to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act (17 CFR 240.13e-4(c))</p>
  
  <p style="margin:0in 0in .0001pt .25in;text-indent:-.25in;"><font size="2" face="Times New Roman">&nbsp;</font></p>
  
  </div>
  <!-- SEQ.=1,FOLIO='',FILE='C:\JMS\jvangc\08-13513-1\task2927583\13513-1-ba.htm',USER='jvangb',CD='May  9 02:47 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div>
  
  <p style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:avoid;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></b></p>
  
  <p style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:avoid;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">Item
  5.02&#160; Departure of Certain Officers;
  Election of Directors; Appointment of Certain Officers; Compensatory
  Arrangement of Certain Officers</font></b></p>
  
  <p style="font-weight:bold;margin:0in 0in .0001pt;page-break-after:avoid;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></b></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The
  following is reported pursuant to paragraph (e)&nbsp;of Item 5.02:</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">Amendment
  of the Zenith National Insurance Corp. 2004 Restricted Stock Plan</font></u></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On
  February&nbsp;20, 2008, the Compensation Committee of the Board of Directors of
  the Registrant approved an increase of 370,000 shares of the Registrant&#146;s
  common stock, $1 par value per share (&#147;Common Stock&#148;), to be available for
  award under the Third Amended and Restated Zenith National Insurance Corp. 2004
  Restricted Stock Plan (the &#147;Plan&#148;) and recommended to the Board of Directors of
  the Registrant (the &#147;Board&#148;) that it authorize such increase.&#160; On February&nbsp;21, 2008, the Board
  authorized the increase and recommended that stockholders approve the increase.</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">At the Annual Meeting of Stockholders held on May&nbsp;13,
  2008, stockholders of the Registrant approved the increase of 370,000 shares
  available for award under the Plan.</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The increase in the number of shares reserved for awards is reflected
  in the copy of the amended and restated plan (as amended and restated May&nbsp;13,
  2008) filed as Exhibit&nbsp;10.1 to this current report and incorporated herein
  by reference.</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 8.01&#160; Other Events</font></b></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On May 13, 2008, Zenith National Insurance
  Corp., the Registrant, issued a press release announcing the declaration of a
  quarterly dividend in the amount of $0.50 per share of common stock.&#160; A copy of the press release is attached as
  Exhibit 99.1 to this current report and incorporated herein by reference.</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item&nbsp;9.01 Financial Statements and Exhibits.</font></b></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(c)&nbsp; Exhibits</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="93%" style="border-collapse:collapse;margin-left:.3in;width:93.0%;">
   <tr>
    <td width="10%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:10.0%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit&nbsp;No.</font></b></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.28%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>
    </td>
    <td width="86%" valign="bottom" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:86.72%;">
    <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Description</font></b></p>
    </td>
   </tr>
   <tr>
    <td width="10%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:10.0%;">
    <p style="margin:0in 0in .0001pt 30.0pt;page-break-after:avoid;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.28%;">
    <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="86%" valign="top" style="border:none;padding:0in 0in 0in 0in;width:86.72%;">
    <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.0%;">
    <p style="margin:0in 0in .0001pt 30.0pt;page-break-after:avoid;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10.1</font></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.28%;">
    <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="86%" valign="top" style="padding:0in 0in 0in 0in;width:86.72%;">
    <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Third Amended and Restated Zenith National Insurance Corp. 2004
    Restricted Stock Plan (as amended and restated May&nbsp;13, 2008)</font></p>
    </td>
   </tr>
   <tr>
    <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.0%;">
    <p style="margin:0in 0in .0001pt 30.0pt;page-break-after:avoid;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.28%;">
    <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="86%" valign="top" style="padding:0in 0in 0in 0in;width:86.72%;">
    <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="10%" valign="top" style="padding:0in 0in 0in 0in;width:10.0%;">
    <p style="margin:0in 0in .0001pt 30.0pt;page-break-after:avoid;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>
    </td>
    <td width="3%" valign="bottom" style="padding:0in 0in 0in 0in;width:3.28%;">
    <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="86%" valign="top" style="padding:0in 0in 0in 0in;width:86.72%;">
    <p style="margin:0in 0in .0001pt;page-break-after:avoid;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Press Release of Zenith National Insurance Corp. dated May 13, 2008</font></p>
    </td>
   </tr>
  </table>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  </div>
  <!-- SEQ.=1,FOLIO='',FILE='C:\JMS\jvangc\08-13513-1\task2927583\13513-1-ba.htm',USER='jvangb',CD='May  9 02:47 2008' -->
  
  
  <br clear="all" style="page-break-before:always;">
  
  
  <div>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SIGNATURE</font></p>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <p style="margin:0in 0in .0001pt;page-break-after:avoid;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements
  of the Securities Exchange Act of 1934, as amended, the Registrant has duly
  caused this report to be signed on its behalf by the undersigned hereunto duly
  authorized.</font></p>
  
  <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <table border="0" cellspacing="0" cellpadding="0" width="100%" style="border-collapse:collapse;width:100.02%;">
   <tr>
    <td width="44%" valign="top" style="padding:0in 0in 0in 0in;width:44.82%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dated:&nbsp;
    May&nbsp;13, 2008</font></p>
    </td>
    <td width="55%" colspan="4" valign="top" style="padding:0in 0in 0in 0in;width:55.18%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">ZENITH NATIONAL INSURANCE CORP.</font></p>
    </td>
   </tr>
   <tr>
    <td width="44%" valign="top" style="padding:0in 0in 0in 0in;width:44.82%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.06%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>
    </td>
    <td width="24%" colspan="2" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:24.68%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;/s/ Michael E.
    Jansen</font></p>
    </td>
    <td width="26%" valign="top" style="padding:0in 0in 0in 0in;width:26.44%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="44%" valign="top" style="padding:0in 0in 0in 0in;width:44.82%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.06%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="51%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:51.12%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name: &nbsp;Michael E. Jansen</font></p>
    </td>
   </tr>
   <tr>
    <td width="44%" valign="top" style="padding:0in 0in 0in 0in;width:44.82%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.06%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
    <td width="51%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:51.12%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
    </td>
   </tr>
   <tr>
    <td width="44%" valign="top" style="padding:0in 0in 0in 0in;width:44.82%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.06%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="51%" colspan="3" valign="top" style="padding:0in 0in 0in 0in;width:51.12%;">
    <p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title: &nbsp;Executive Vice President</font></p>
    </td>
   </tr>
   <tr>
    <td width="44%" valign="top" style="padding:0in 0in 0in 0in;width:44.82%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="4%" valign="top" style="padding:0in 0in 0in 0in;width:4.06%;">
    <p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="7%" valign="top" style="padding:0in 0in 0in 0in;width:7.2%;">
    <p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>
    </td>
    <td width="43%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:43.92%;">
    <p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">and General Counsel</font></p>
    </td>
   </tr>
   <tr height="0">
    <td width="335" style="border:none;"></td>
    <td width="30" style="border:none;"></td>
    <td width="54" style="border:none;"></td>
    <td width="131" style="border:none;"></td>
    <td width="198" style="border:none;"></td>
   </tr>
  </table>
  
  <p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
  
  <div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade color="#010101" align="left"></div>
  
  </div>
  <!-- SEQ.=1,FOLIO='',FILE='C:\JMS\jvangc\08-13513-1\task2927583\13513-1-ba.htm',USER='jvangb',CD='May  9 02:47 2008' -->
  
  
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metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "a08-13513_18k.htm", "description": "8-K", "secsgml_size_bytes": 30711}]
metadata_filer: {"company-data": {"conformed-name": "ZENITH NATIONAL INSURANCE CORP", "cik": "0000109261", "assigned-sic": "6331", "irs-number": "952702776", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-09627", "film-number": "08826962"}, "business-address": {"street1": "21255 CALIFA ST", "city": "WOODLAND HILLS", "state": "CA", "zip": "91367", "phone": "8187131000"}}
text: 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)
  May 13, 2008
  ZENITH NATIONAL INSURANCE CORP.
  (Exact name of registrant as specified in its
  charter)
  Delaware
  1-9627
  95-2702776
  (State or other jurisdiction
  of incorporation)
  (Commission
  File Number)
  (IRS Employer
  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):
  [ ]
  Written communications pursuant to Rule 425
  under the Securities Act (17 CFR 230.425)
  [ ]
  Soliciting material pursuant to Rule 14a-12
  under the Exchange Act (17 CFR 240.14a-12)
  [ ]
  Pre-commencement communications pursuant
  to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
  [ ]
  Pre-commencement communications pursuant
  to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
  Item
  5.02  Departure of Certain Officers;
  Election of Directors; Appointment of Certain Officers; Compensatory
  Arrangement of Certain Officers
  The
  following is reported pursuant to paragraph (e) of Item 5.02:
  Amendment
  of the Zenith National Insurance Corp. 2004 Restricted Stock Plan
  On
  February 20, 2008, the Compensation Committee of the Board of Directors of
  the Registrant approved an increase of 370,000 shares of the Registrant's
  common stock, $1 par value per share ("Common Stock"), to be available for
  award under the Third Amended and Restated Zenith National Insurance Corp. 2004
  Restricted Stock Plan (the "Plan") and recommended to the Board of Directors of
  the Registrant (the "Board") that it authorize such increase.  On February 21, 2008, the Board
  authorized the increase and recommended that stockholders approve the increase.
  At the Annual Meeting of Stockholders held on May 13,
  2008, stockholders of the Registrant approved the increase of 370,000 shares
  available for award under the Plan.
  The increase in the number of shares reserved for awards is reflected
  in the copy of the amended and restated plan (as amended and restated May 13,
  2008) filed as Exhibit 10.1 to this current report and incorporated herein
  by reference.
  Item 8.01  Other Events
  On May 13, 2008, Zenith National Insurance
  Corp., the Registrant, issued a press release announcing the declaration of a
  quarterly dividend in the amount of $0.50 per share of common stock.  A copy of the press release is attached as
  Exhibit 99.1 to this current report and incorporated herein by reference.
  Item 9.01 Financial Statements and Exhibits.
  (c)  Exhibits
  Exhibit No.
  Description
  10.1
  Third Amended and Restated Zenith National Insurance Corp. 2004
    Restricted Stock Plan (as amended and restated May 13, 2008)
  99.1
  Press Release of Zenith National Insurance Corp. dated May 13, 2008
  SIGNATURE
  Pursuant to the requirements
  of the Securities Exchange Act of 1934, as amended, the Registrant has duly
  caused this report to be signed on its behalf by the undersigned hereunto duly
  authorized.
  Dated: 
    May 13, 2008
  ZENITH NATIONAL INSURANCE CORP.
  By:
  /s/ Michael E.
    Jansen
  Name:  Michael E. Jansen
  Title:  Executive Vice President
  and General Counsel