Report of Foreign Issuer

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13A-16 OR 15D-16 OF

THE SECURITIES EXCHANGE ACT OF 1934

Date of Report: May 19, 2011

Commission File Number 1-32591

SEASPAN CORPORATION

(Exact name of Registrant as specified in its charter)

Unit 2, 7th Floor, Bupa Centre,

141 Connaught Road West,

Hong Kong

China

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F x Form 40-F ¨

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1).

Yes ¨ No x

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7).

Yes ¨ No x

THIS REPORT ON FORM 6-K IS HEREBY INCORPORATED BY REFERENCE INTO THE FOLLOWING REGISTRATION STATEMENT OF THE COMPANY:

•

REGISTRATION STATEMENT ON FORM F-3 (FILE NO. 333- 168938) ORIGINALLY FILED WITH THE SEC ON AUGUST 19, 2010

Item 6 - Exhibits

The following exhibit is filed as part of this Report:

23.1 Consent of Clarkson Research Services Limited

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, thereunto duly authorized.


		SEASPAN CORPORATION

Date: May 19, 2011
	By:	/s/ Sai W. Chu
		Sai W. Chu
		Chief Financial Officer

Exhibit 23.1

LOGO

Seaspan Corporation

May 9, 2011

Ladies and Gentlemen:

Reference is made to the Registration Statement on Form F-3 (No. 333-168938) as filed with the Securities and Exchange Commission on August 19, 2010, and the preliminary Prospectus Supplement dated May 19, 2011 and related final Prospectus Supplement (collectively, the “Prospectus Supplement”) relating to the public offering of Series C Preferred Shares of Seaspan Corporation (the “Company”). We hereby consent to all references to our name in the Prospectus Supplement and to the use of the statistical and other information supplied by us set forth in the section of the Prospectus Supplement entitled “The International Containership Industry.” We further advise the Company that our role has been limited to the provision of such statistical and other information supplied by us. With respect to such statistical data, we advise you that:

•

some industry data included in this discussion is derived from estimates or subjective judgments;

•

the published information of other maritime data collection agencies may differ from this data; and

•

while we have taken reasonable care in the compilation of the Shipping Information and believe it to be accurate and correct, data compilation is subject to limited audit and validation procedures and may accordingly contain errors.

We hereby consent to the filing of this letter as an exhibit to the Registration Statement described above, as amended, and to the references to our firm in the section of the Prospectus Supplement entitled “The International Containership Industry.”


For and on behalf of		For and on behalf of
Clarkson Research Services Limited		Clarkson Research Services Limited
Signature: /s/ Cliff Tyler		Signature: /s/ Stephen James Gordon
Name: Cliff Tyler		Name: Stephen James Gordon
Designation: Director		Designation: Director

Clarkson Research Services Limited England No 1944749: Registered Office as above