UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 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): April 11, 2011

Allied World Assurance Company Holdings, AG
__________________________________________
(Exact name of registrant as specified in its charter)

Switzerland	001-32938	98-0681223
_____________________ (State or other jurisdiction	_____________ (Commission	______________ (I.R.S. Employer
of incorporation)	File Number)	Identification No.)
Lindenstrasse 8, Baar/Zug,		6340
_________________________________ (Address of principal executive offices)		___________ (Zip Code)

Registrant’s telephone number, including area code: +41-41-768-1080

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:

[  ]  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 7.01. Regulation FD Disclosure

On April 11, 2011, Allied World Assurance Company Holdings, AG issued a press release announcing its loss estimate for the March 11, 2011 Tohoku earthquake and tsunami in Japan.

The press release is furnished herewith as Exhibit 99.1. The information hereunder is not deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), is not otherwise subject to the liabilities of that section and is not incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

Exhibit
Number		Description
	99.1	Press release, dated April 11, 2011.

SIGNATURES

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.

	Allied World Assurance Company Holdings, AG
April 11, 2011	By:	/s/ Wesley D. Dupont
		Name: Wesley D. Dupont
		Title: Executive Vice President, General Counsel and Corporate Secretary

Exhibit Index

Exhibit No.	Description
99.1	Press release, dated April 11, 2011.