New Listing Registration (Form 8-A12B)

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549

FORM 8-A

For Registration of Certain Classes of Securities
Pursuant to Section 12(b) or 12(g) of the
Securities Exchange Act of 1934

Roundhill ETF Trust

(EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c), please check the following box. [X]

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d), please check the following box. [ ]

Securities Act registration statement file numbers to which this form relates:
333-273052

Securities to be registered pursuant to Section 12(g) of the Act:
None

Item 1. Description of Registrant's Securities to be Registered.

A description of the shares of beneficial interest, no par value, of the fund listed below, a separate series of Roundhill ETF Trust (the "Trust"), to be registered hereunder is set forth in Post-Effective Amendment No. 186 to the Trust's Registration Statement under the Securities Act of 1933 and Amendment No. 188 to the Trust's Registration Statement under the Investment Company Act of 1940 on Form N-1A (Commission File Nos. 333-273052; 811-23887) (the "Registration Statement"), which description is incorporated herein by reference as filed with the Securities and Exchange Commission on October 6, 2025:

Item 2. Exhibits.

1. The Trust's Agreement and Declaration of Trust is included as Exhibit 28(a) to Pre-Effective Amendment No. 2 to the Trust's Registration Statement, as filed with Securities and Exchange Commission on October 20, 2023.

2. The Trust's By-Laws is included as Exhibit 28(b) to Pre-Effective Amendment No. 2 to the Trust's Registration Statement, as filed with Securities and Exchange Commission on October 20, 2023.

SIGNATURES

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereto duly authorized.