UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: August 4, 2017
Accession Number: 0001193125-17-241652
Submission Type: 485APOS
CIK: 0001016073
Company Name: DRIEHAUS MUTUAL FUNDS
File Number: 333-05265
REFERENCED SERIES/CLASSES (CONTRACTS)
Series ID
Class/Contract Name
S000058261 Driehaus Small Cap Growth Fund
C000190998 Investor Share Class
C000190999 Institutional Share Class