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

As filed with the Securities and Exchange Commission on December 3, 2021

1933 Act Registration No. 333-143964

1940 Act Registration No. 811-21944

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. 173	[X]
and/or
Registration Statement Under the Investment Company Act of 1940	[ ]
Amendment No. 176	[X]

First Trust Exchange-Traded Fund II

(Exact name of registrant as specified in charter)

120 East Liberty Drive, Suite 400

Wheaton, Illinois 60187

(Address of Principal Executive Offices) (Zip Code)

Registrant's Telephone Number, including Area Code: (800) 621-1675

W. Scott Jardine, Esq., Secretary

First Trust Exchange-Traded Fund II

First Trust Advisors L.P.

120 East Liberty Drive, Suite 400

Wheaton, Illinois 60187

(Name and Address of Agent for Service)

Copy to:

Eric F. Fess, Esq.

Chapman and Cutler LLP

111 West Monroe Street

Chicago, Illinois 60603

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

[ ] immediately upon filing pursuant to paragraph (b)

[X] on January 2, 2022 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:

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

Contents of Post-Effective Amendment No. 173

This Post-Effective Amendment to the Registration Statement comprises the following papers and contents:

The Facing Sheet

The sole purpose of this filing is to delay the effectiveness of the Registrant's Post-Effective Amendment No. 168, as it relates to First Trust S-Network Electric & Future Vehicle Ecosystem ETF (formerly, First Trust NASDAQ Global Auto Index Fund), a series of the Registrant, until January 2, 2022. Parts A and B of the Registrant's Post-Effective Amendment No. 153 and Part C of the Registrant's Post-Effective Amendment No. 168 under the Securities Act of 1933 as it relates to First Trust S-Network Electric & Future Vehicle Ecosystem ETF (formerly, First Trust NASDAQ Global Auto Index Fund), filed on May 18, 2021 and November 5, 2021, respectively, are incorporated by reference herein.

Signatures

Signatures

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the 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 Registration Statement to be signed on its behalf by the undersigned, duly authorized, in the City of Wheaton, and State of Illinois, on the 3rd day of December, 2021.

	First Trust Exchange-Traded Fund II
	By:	/s/ James M. Dykas
		James M. Dykas, President and Chief Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities and on the date indicated:

Signature	Title		Date
/s/ James M. Dykas	President and Chief Executive Officer	December 3, 2021
James M. Dykas
/s/ Donald P. Swade	Treasurer, Chief Financial Officer and Chief Accounting Officer	December 3, 2021
Donald P. Swade
James A. Bowen*	) Trustee )
	)
Richard E. Erickson*	) Trustee )
	)
Thomas R. Kadlec*	) Trustee )
	)
Denise M. Keefe*	) Trustee )
	)
Robert F. Keith*	) Trustee )
	)	By:	/s/ W. Scott Jardine
Niel B. Nielson *	) Trustee )		W. Scott Jardine Attorney-In-Fact
	)		December 3, 2021

*

Original powers of attorney dated December 31, 2015 or November 1, 2021, authorizing James A. Bowen, W. Scott Jardine, James M. Dykas, Eric F. Fess and Kristi A. Maher to execute Registrant's Registration Statement, and Amendments thereto, for each of the trustees of the Registrant on whose behalf this Registration Statement is filed, were previously executed, filed as an exhibit and are incorporated by reference herein.

Index to Exhibits

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