UNITED STATES SECURITIES AND EXCHANGE COMMISSION

FORM F-1

TEEKAY LNG PARTNERS L.P.

TK House, Bayside Executive Park
West Bay Street and Blake Road
P.O. Box AP-59212
Nassau, Commonwealth of the Bahamas
(242) 502-8820
(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Watson, Farley &Williams
Attention: Leo Chang
and Daniel C. Rodgers
100 Park Avenue, 31st Floor
New York, New York 10017
(212) 922-2200
(Name, address, including zip code, and telephone number, including area code, of agent for service)

     Approximate date of commencement of proposed sale to the public: As soon as practicable after this Registration Statement becomes effective.

     If any of the securities being registered on this form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box.  o

     If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  þ  333-120727

     If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  o

     If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  o

     If delivery of the prospectus is expected to be made pursuant to Rule 434, please check the following box.  o

CALCULATION OF REGISTRATION FEE

     The registration statement shall become effective upon filing with the Securities and Exchange Commission in accordance with Rule 462(b) under the Securities Act of 1933, as amended.

EXPLANATORY NOTE AND INCORPORATION OF CERTAIN INFORMATION BY REFERENCE

This registration statement is being filed with respect to the registration of additional common units of Teekay LNG Partners L.P. pursuant to Rule 462(b) under the Securities Act of 1933, as amended (this “Rule 462(b) Registration Statement”). The contents of Teekay LNG Partners L.P.’s registration statement on Form F-1, as amended (Registration No. 333-120727) (the “Prior Registration Statement”), which was declared effective as of 4:15 p.m., Eastern Time on May 4, 2005, are incorporated into this Rule 462(b) Registration Statement by reference. The final prospectus of the Prior Registration Statement will reflect the aggregate amount of securities registered in this Rule 462(b) Registration Statement and the Prior Registration Statement.

PART II

ITEM 16. Exhibits and Financial Statement Schedules

     All exhibits filed with or incorporated by reference in the Prior Registration Statement are incorporated by reference into, and shall be deemed to be a part of, this Registration Statement. In addition, the following exhibits are filed herewith:

     (a) The following exhibits are filed as part of this Registration Statement:

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form F-1 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunder duly authorized, in the City of Nassau, Commonwealth of The Bahamas, on May 4, 2005.

     Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement has been signed on May 4, 2005 by or on behalf of the following persons in the following capacities.