Post-Effective Amendment to Post-Effective Amendment by Investment Company (Form 485BXT)

As filed with the U.S. Securities and Exchange Commission on April 1, 2026

Registration No. 033-13954

811-05141

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

	Pre-Effective Amendment No.	☐
	Post-Effective Amendment No. 179	☒

and/or

REGISTRATION STATEMENT

UNDER

	THE INVESTMENT COMPANY ACT OF 1940	☐
	Amendment No. 180	☒

(Check appropriate box or boxes)

Pacific Select Fund

(Exact Name of Registrant as Specified in Charter)

700 Newport Center Drive,

P.O. Box 7500, Newport Beach, CA 92660

(Address of Principal Executive Offices) (Zip Code)

Registrant's Telephone Number, including Area Code: (949) 219-3224

Mark Karpe, Esq.

Pacific Life Insurance Company

700 Newport Center Drive

Newport Beach, CA 92660

(Name and Address of Agent for Service)

Copies to:

Anthony H. Zacharski, Esq.

Morgan Lewis & Bockius LLP

101 Park Avenue

New York, NY 10178-0060

Approximate Date of Proposed Public Offering

It is proposed that this filing will become effective (check appropriate box)

☐

immediately upon filing pursuant to paragraph (b)

☒

on April 30, 2026, pursuant to paragraph (b)

☐

60 days after filing pursuant to paragraph (a)(1)

☐

on (date) pursuant to paragraph (a)(1)

☐

75 days after filing pursuant to paragraph (a)(2)

☐

on (date) pursuant to paragraph (a)(2) of rule 485.

If appropriate, check the following box:

☒

this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

This Post-Effective Amendment No. 179 to the Registration Statement incorporates by reference the prospectuses, Statement of Additional Information and Part C that are contained in Registrant's Post-Effective Amendment No.178, which was filed with the U.S. Securities and Exchange Commission on February 2, 2026 (SEC Accession No. 0001104659-26-008760). Pursuant to Rule 485(b)(1)(iii) of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 179 is filed solely for the purpose of designating April 30, 2026, as the new effective date of Post-Effective Amendment No. 178.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, as amended, Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act and has duly caused this Post-Effective Amendment No. 179 to its Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Newport Beach in the State of California on this 1^st day of April 2026.

PACIFIC SELECT FUND

	By:	/s/ Mark Karpe
		Mark Karpe
		Assistant Vice President and Assistant Secretary

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, this Post-Effective Amendment No. 179 to the Registration Statement of Pacific Select Fund has been signed below by the following persons in the capacities and on the dates indicated:

SIGNATURE		TITLE		DATE
/s/ Michael F. Anderson		Chief Executive Officer and President		April 1, 2026
Michael F. Anderson		(Principal Executive Officer)
Trevor T. Smith*		Vice President and Treasurer		April 1, 2026
Trevor T. Smith		(Principal Financial and Accounting Officer)
Nooruddin Veerjee*		Chairman of the Board and Trustee		April 1, 2026
Nooruddin Veerjee
Gale K. Caruso*		Trustee		April 1, 2026
Gale K. Caruso
Andrew J. Iseman*		Trustee		April 1, 2026
Andrew J. Iseman
Paul A. Keller*		Trustee		April 1, 2026
Paul A. Keller
Lucie H. Moore*		Trustee		April 1, 2026
Lucie H. Moore
*By: /s/ Mark Karpe				April 1, 2026
Mark Karpe
as attorney-in-fact pursuant to power of attorney filed herewith

Pacific Select Fund

Power of Attorney

The undersigned Trustees and officers of Pacific Select Fund (the "Trust") hereby appoint Anthony Zacharski, Laurie A. Dee, Greg Larson, Mark Karpe, Audrey L. Cheng, Laurene E. MacElwee, Howard T. Hirakawa and Carleton J. Muench each individually as their true and lawful attorneys-in-fact ("attorneys"), in all capacities, to execute in their name and file any and all registration statements, including registration statements on Form N-14, proxy statements, exemptive applications, no-action letter requests, shareholder reports and other regulatory filings made applicable to the Trust and each series of the Trust, and any amendments, exhibits, or supplements thereto, and any instruments necessary or desirable in connection therewith as are required to enable the Trust to comply with provisions of the Securities Act of 1933, as amended, and/or the Securities Exchange Act of 1934, as amended, and/or the Investment Company Act of 1940, as amended, and all requirements and regulations of the Securities and Exchange Commission ("SEC") in connection with the offer of the shares of beneficial interest of the Trust and each series of the Trust, and to file the same, with other documents in connection herewith, with the SEC, any state securities regulator, any self-regulatory organization or any other governmental or official body (including, without limitation, agencies, commissions and authorities). The undersigned grant to said attorneys full authority to do every act necessary to be done in order to effectuate the same as fully, to all intents and purposes, as he or she could do if personally present, thereby ratifying all that said attorneys may lawfully do or cause to be done by virtue hereof. This Power of Attorney hereby terminates and replaces all other previously executed Power of Attorneys for the Trust related to the above.

The undersigned Trustees and officers of the Trust hereby execute this Power of Attorney effective the 18th day of June 2025.

NAME

TITLE

/s/ Jason (Jay) Orlandi
Jason (Jay) Orlandi		Chief Executive Officer, President, and Trustee
/s/ Nooruddin (Rudy) Veerjee
Nooruddin (Rudy) Veerjee		Chairman and Trustee
/s/ Gale K. Caruso
Gale K. Caruso		Trustee
/s/ Andrew J. Iseman
Andrew J. Iseman		Trustee
/s/ Paul A. Keller
Paul A. Keller		Trustee
/s/ Lucie H. Moore
Lucie H. Moore		Trustee
/s/ Trevor T. Smith
Trevor T. Smith		Vice President and Treasurer