Prospectus Certification by Investment Company - Form 497J

Chicago New York Washington, DC London San Francisco Los Angeles Singapore Dallas Miami vedderprice.com Renee M. Hardt Shareholder +1 312 609 7616 [email protected]

May 1, 2024

VIA EDGAR

Securities and Exchange Commission
100 F. Street, NE
Washington, D.C. 20546

Re:	Driehaus Mutual Funds ("Registrant")
	Registration Nos. 333-05265 and 811-07655

To the Commission:

Pursuant to Rule 497(j) of Regulation C, under the Securities Act of 1933, in lieu of filing under paragraph (b) or (c) of Rule 497, on behalf of the Registrant, we hereby certify that (1) the forms of Prospectus and Statement of Additional Information, each dated April 30, 2024, as filed on April 26, 2024 for the above-captioned Registrant that would have been filed under paragraph (b) or (c) of Rule 497 do not differ from that contained in the most recent registration statement or amendment and (2) the text of the most recent registration statement or amendment has been filed electronically.

Very truly yours,

/s/ Renee M. Hardt

Renee M. Hardt

222 North LaSalle Street | Chicago, Illinois 60601 | T +1 312 609 7500 | F +1 312 609 5005

Vedder Price P.C. is affiliated with Vedder Price LLP, which operates in England and Wales, Vedder Price (CA), LLP, which operates in California, Vedder Price Pte. Ltd., which operates in Singapore, and Vedder Price (FL) LLP, which operates in Florida.

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