JNL SERIES TRUST

1 Corporate Way, Lansing, Michigan 48951

(517) 381-5500

January 5, 2018

Securities and Exchange Commission

450 Fifth Street, NW

Judiciary Plaza

Washington, DC  20549

Re:	JNL Series Trust
	File Nos. 33-87244 and 811-8894

Dear Sir/Madam:

On behalf of JNL Series Trust (the "Fund") enclosed herewith for electronic filing pursuant to Rule 14(a) under the Securities Exchange Act of 1934, as amended, are the proxy materials: Notice of Special Meeting of Shareholders, Proxy Statement, and form of Proxy and Voting Instruction Cards to be sent to the shareholders of the Trust and its contract owners in connection with a special meeting of shareholders.

The proposal for consideration by shareholders of the Trust is as follows:

1.Shareholders of the JNL/Mellon Capital Consumer Staples Sector Fund, JNL/Mellon Capital Industrials Sector Fund, JNL/Mellon Capital Materials Sector Fund, and JNL/Mellon Capital Real Estate Sector Fund of the JNL Series Trust, voting separately: To approve an amended fundamental policy regarding industry concentration.

The shareholders' meeting for the Fund is scheduled to be held on March 28, 2018.  Please do not hesitate to contact me at (517) 367-4336 to discuss the Preliminary Proxy Statement.

Very truly yours,

/s/Susan S. Rhee

Susan S. Rhee

Vice President, Chief Legal Officer & Secretary