Prospectus Certification by Investment Company - Form 497J

Tidal Trust III

234 West Florida Street, Suite 203

Milwaukee, WI 53204

October 17, 2024

VIA EDGAR TRANSMISSION

U.S. Securities and Exchange Commission (the "Commission")

Division of Investment Management

100 F Street, N.E.

Washington, DC 20549

Re:	Tidal Trust III (the "Trust")
	File Nos. 333-221764, 811-23312

To the Commission:

Pursuant to Rule 497(j) under the Securities Act of 1933, as amended, and the regulations thereunder, the Trust on behalf of its series, the Ned Davis Research 360^o Dynamic Allocation ETF and the Ned Davis Research 360º Core Equity ETF, hereby certifies that the forms of Prospectus and Statement of Additional Information that would have been filed under Rule 497(b) or (c) would not have differed from that contained in the most recent amendment effective October 15, 2024, and filed electronically as Post-Effective Amendment No. 64 to the Trust's Registration Statement on Form N-1A on October 15, 2024.

If you have any questions or require further information, please contact Michael Pellegrino at (262) 318-8442 or [email protected].

Sincerely,

/s/ Michael Pellegrino
Michael Pellegrino
General Counsel
Tidal Investments LLC

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