DRIEHAUS MUTUAL FUNDS
NSAR-A, 1999-08-26
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<PAGE>      PAGE  1
000 A000000 06/30/1999
000 C000000 0001016073
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 DRIEHAUS MUTUAL FUNDS
001 B000000 811-07655
001 C000000 3125873800
002 A000000 25 EAST ERIE STREET
002 B000000 CHICAGO
002 C000000 IL
002 D010000 60611
002 D020000 2703
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  5
007 C010100  1
007 C020100 DRIEHAUS INTERNATIONAL GROWTH FUND
007 C030100 N
007 C010200  2
007 C020200 DRIEHAUS EMERGING MARKETS GROWTH FUND
007 C030200 N
007 C010300  3
007 C020300 DRIEHAUS ASIA PACIFIC GROWTH FUND
007 C030300 N
007 C010400  4
007 C020400 DRIEHAUS EUROPEAN OPPORTUNITY FUND
007 C030400 N
007 C010500  5
007 C020500 DRIEHAUS INTERNATIONAL DISCOVERY FUND
007 C030500 N
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
008 A00AA01 DRIEHAUS CAPITAL MANAGEMENT, INC.
008 B00AA01 A
008 C00AA01 801-18439
008 D01AA01 CHICAGO
008 D02AA01 IL
008 D03AA01 60611
008 D04AA01 2703
010 A00AA01 PFPC, INC.
<PAGE>      PAGE  2
010 B00AA01 85-1196
010 C01AA01 WILMINGTON
010 C02AA01 DE
010 C03AA01 19809
011 A00AA01 DRIEHAUS SECURITIES CORP.
011 B00AA01 8-24024
011 C01AA01 CHICAGO
011 C02AA01 IL
011 C03AA01 60611
011 C04AA01 2703
012 A00AA01 PFPC, INC.
012 B00AA01 85-1196
012 C01AA01 WILMINGTON
012 C02AA01 DE
012 C03AA01 19809
013 A00AA01 ARTHUR ANDERSEN, LLP
013 B01AA01 CHICAGO
013 B02AA01 IL
013 B03AA01 60603
014 A00AA01 DRIEHAUS SECURITIES CORP.
014 B00AA01 8-24024
015 A00AA01 CHASE MANHATTAN BANK
015 B00AA01 C
015 C01AA01 NEW YORK
015 C02AA01 NY
015 C03AA01 11201
015 E04AA01 X
018  00AA00 Y
019 A00AA00 N
019 B00AA00    0
020 A000001 DRIEHAUS SECURITIES CORP.
020 B000001 36-3026585
020 C000001    220
020 A000002 KLEINWORT BENSON NORTH AMERICA, INC.
020 B000002 13-2647786
020 C000002    199
020 A000003 S. G. COWEN CORP.
020 B000003 13-1976032
020 C000003    191
020 A000004 MERRILL, LYNCH, PIERCE, FENNER & SMITH, INC.
020 B000004 13-5674085
020 C000004    162
020 A000005 S.G. WARBURG SECURITIES
020 B000005 13-3340045
020 C000005    138
020 A000006 H. G. ASIA
020 B000006 13-3227945
020 C000006    126
020 A000007 ROBERT FLEMING, INC.
020 B000007 13-3298866
020 C000007    100
<PAGE>      PAGE  3
020 A000008 NOMURA SECURITIES
020 B000008 13-2642206
020 C000008     87
020 A000009 EXANE
020 B000009 13-3901039
020 C000009     72
020 A000010 GOLDMAN SACHS & CO.
020 B000010 13-5108880
020 C000010     71
021  000000     2181
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026 E000000 N
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026 G010000 N
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<PAGE>      PAGE  4
029  00AA00 N
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038  00AA00      0
039  00AA00 N
040  00AA00 N
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042 B00AA00   0
042 C00AA00   0
042 D00AA00   0
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042 F00AA00   0
042 G00AA00   0
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047  00AA00 Y
048  00AA00  1.500
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048 K01AA00        0
048 K02AA00 0.000
<PAGE>      PAGE  5
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 Y
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 N
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 N
054 M00AA00 N
054 N00AA00 N
054 O00AA00 Y
062 A00AA00 N
062 B00AA00   0.0
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062 D00AA00   0.0
062 E00AA00   0.0
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066 A00AA00 Y
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066 E00AA00 N
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067  00AA00 N
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069  00AA00 N
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077 E000000 N
<PAGE>      PAGE  6
077 F000000 N
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077 M000000 N
077 N000000 N
077 O000000 N
077 P000000 N
077 Q010000 N
077 Q020000 N
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078  000000 N
080 A00AA00 RELIANCE INSURANCE COMPANY
080 C00AA00     1000
081 A00AA00 N
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028 A010100     17767
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028 C040100     12268
<PAGE>      PAGE  7
028 D010100      8019
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028 G020100         0
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028 H000100         0
049  000100 N
050  000100 N
051  000100 N
052  000100 N
053 A000100 N
055 A000100 N
055 B000100 N
056  000100 Y
057  000100 N
058 A000100 N
059  000100 Y
060 A000100 N
060 B000100 N
061  000100   100000
070 A010100 Y
070 A020100 N
070 B010100 Y
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 Y
070 D020100 N
070 E010100 Y
070 E020100 N
070 F010100 Y
070 F020100 N
070 G010100 Y
070 G020100 N
070 H010100 Y
070 H020100 N
070 I010100 Y
070 I020100 N
070 J010100 Y
070 J020100 Y
<PAGE>      PAGE  8
070 K010100 Y
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070 P020100 N
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070 Q020100 N
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070 R020100 N
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071 D000100  150
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072 G000100      139
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072 J000100      109
072 K000100        0
072 L000100        9
072 M000100       10
072 N000100       10
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072 P000100        0
072 Q000100        0
072 R000100        7
072 S000100       53
072 T000100        0
072 U000100       12
072 V000100        0
072 W000100       27
072 X000100     2146
072 Y000100        0
072 Z000100     -415
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072BB000100    21895
072CC010100    19259
072CC020100        0
072DD010100        0
<PAGE>      PAGE  9
072DD020100        0
072EE000100        0
073 A010100   0.0000
073 A020100   0.0000
073 B000100   0.0000
073 C000100   0.0000
074 A000100     6271
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074 D000100        0
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074 F000100   249856
074 G000100        0
074 H000100        0
074 I000100      818
074 J000100     3728
074 K000100        0
074 L000100     1350
074 M000100       87
074 N000100   265078
074 O000100     8464
074 P000100      305
074 Q000100        0
074 R010100        0
074 R020100        0
074 R030100        0
074 R040100      367
074 S000100        0
074 T000100   255942
074 U010100    19638
074 U020100        0
074 V010100    13.03
074 V020100     0.00
074 W000100   0.0000
074 X000100      337
074 Y000100        0
075 A000100        0
075 B000100   234962
076  000100     0.00
028 A010200         0
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028 B030200         0
028 B040200         0
028 C010200       621
028 C020200         0
028 C030200         0
028 C040200         0
<PAGE>      PAGE  10
028 D010200       828
028 D020200         0
028 D030200         0
028 D040200       672
028 E010200        30
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028 E040200         0
028 F010200         0
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028 F030200         0
028 F040200         0
028 G010200      1479
028 G020200         0
028 G030200         0
028 G040200       672
028 H000200         0
049  000200 N
050  000200 N
051  000200 N
052  000200 N
053 A000200 Y
053 B000200 Y
053 C000200 N
055 A000200 Y
055 B000200 N
056  000200 Y
057  000200 N
058 A000200 N
059  000200 Y
060 A000200 N
060 B000200 N
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070 A010200 Y
070 A020200 N
070 B010200 Y
070 B020200 N
070 C010200 N
070 C020200 N
070 D010200 Y
070 D020200 N
070 E010200 Y
070 E020200 N
070 F010200 Y
070 F020200 N
070 G010200 Y
070 G020200 N
070 H010200 Y
070 H020200 N
070 I010200 Y
070 I020200 N
<PAGE>      PAGE  11
070 J010200 Y
070 J020200 Y
070 K010200 Y
070 K020200 Y
070 L010200 Y
070 L020200 Y
070 M010200 Y
070 M020200 Y
070 N010200 Y
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 N
070 P020200 N
070 Q010200 Y
070 Q020200 N
070 R010200 Y
070 R020200 N
071 A000200      9321
071 B000200      8444
071 C000200      4745
071 D000200  178
072 A000200  6
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072 C000200       39
072 D000200        0
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072 F000200       37
072 G000200       57
072 H000200        0
072 I000200       18
072 J000200       33
072 K000200        0
072 L000200        1
072 M000200        2
072 N000200        3
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072 U000200        3
072 V000200        0
072 W000200       10
072 X000200      180
072 Y000200      113
072 Z000200      -24
072AA000200     1210
072BB000200      619
072CC010200     1299
<PAGE>      PAGE  12
072CC020200        0
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072EE000200        0
073 A010200   0.0000
073 A020200   0.0000
073 B000200   0.0000
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074 I000200      144
074 J000200      206
074 K000200        4
074 L000200       14
074 M000200       42
074 N000200     7025
074 O000200      318
074 P000200        0
074 Q000200        0
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074 R040200       27
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074 T000200     6680
074 U010200      546
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074 V010200    12.23
074 V020200     0.00
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074 X000200        9
074 Y000200        0
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075 B000200     5052
076  000200     0.00
028 A010300      1710
028 A020300         0
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028 B010300         0
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028 B030300         0
028 B040300         0
028 C010300       265
028 C020300         0
<PAGE>      PAGE  13
028 C030300         0
028 C040300         0
028 D010300      1208
028 D020300         0
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028 D040300       163
028 E010300        20
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028 F010300        25
028 F020300         0
028 F030300         0
028 F040300         0
028 G010300      3228
028 G020300         0
028 G030300         0
028 G040300      1783
028 H000300         0
049  000300 N
050  000300 N
051  000300 N
052  000300 N
053 A000300 Y
053 B000300 Y
053 C000300 N
055 A000300 N
055 B000300 N
056  000300 Y
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058 A000300 N
059  000300 Y
060 A000300 N
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070 E020300 N
070 F010300 Y
070 F020300 N
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070 G020300 N
070 H010300 Y
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<PAGE>      PAGE  14
070 I010300 Y
070 I020300 N
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070 K010300 Y
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070 L010300 Y
070 L020300 Y
070 M010300 Y
070 M020300 Y
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070 N020300 N
070 O010300 Y
070 O020300 N
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070 P020300 N
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070 Q020300 N
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071 A000300     15160
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072 J000300       25
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072 V000300        0
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072 X000300      188
072 Y000300       93
072 Z000300      -53
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<PAGE>      PAGE  15
072BB000300      574
072CC010300     2377
072CC020300        0
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073 A010300   0.0000
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073 B000300   0.0000
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074 L000300       27
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074 N000300    11146
074 O000300      649
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<PAGE>      PAGE  16
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049  000400 N
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070 A010400 Y
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070 D010400 Y
070 D020400 N
070 E010400 Y
070 E020400 N
070 F010400 Y
070 F020400 N
070 G010400 Y
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<PAGE>      PAGE  17
070 H010400 Y
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070 I020400 N
070 J010400 Y
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070 K010400 Y
070 K020400 Y
070 L010400 Y
070 L020400 Y
070 M010400 Y
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070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 N
070 P020400 N
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070 Q020400 N
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<PAGE>      PAGE  18
072 Z000400       -3
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072CC010400      881
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<PAGE>      PAGE  19
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049  000500 N
050  000500 N
051  000500 N
052  000500 N
053 A000500 Y
053 B000500 Y
053 C000500 N
055 A000500 N
055 B000500 N
056  000500 Y
057  000500 N
058 A000500 N
059  000500 Y
060 A000500 N
060 B000500 N
061  000500    10000
070 A010500 Y
070 A020500 N
070 B010500 Y
070 B020500 N
070 C010500 N
070 C020500 N
070 D010500 Y
070 D020500 N
070 E010500 Y
070 E020500 N
070 F010500 Y
070 F020500 N
<PAGE>      PAGE  20
070 G010500 Y
070 G020500 N
070 H010500 Y
070 H020500 N
070 I010500 Y
070 I020500 N
070 J010500 Y
070 J020500 Y
070 K010500 Y
070 K020500 N
070 L010500 Y
070 L020500 Y
070 M010500 Y
070 M020500 Y
070 N010500 Y
070 N020500 N
070 O010500 Y
070 O020500 N
070 P010500 N
070 P020500 N
070 Q010500 Y
070 Q020500 N
070 R010500 Y
070 R020500 N
071 A000500     14545
071 B000500      8738
071 C000500      6062
071 D000500  144
072 A000500  6
072 B000500        9
072 C000500       45
072 D000500        0
072 E000500        0
072 F000500       52
072 G000500       57
072 H000500        0
072 I000500       18
072 J000500       23
072 K000500        0
072 L000500        3
072 M000500        3
072 N000500        5
072 O000500        0
072 P000500        0
072 Q000500        0
072 R000500        6
072 S000500       19
072 T000500        0
072 U000500        0
072 V000500        0
072 W000500        6
<PAGE>      PAGE  21
072 X000500      192
072 Y000500      106
072 Z000500      -32
072AA000500     1086
072BB000500      830
072CC010500     2467
072CC020500        0
072DD010500        0
072DD020500        0
072EE000500        0
073 A010500   0.0000
073 A020500   0.0000
073 B000500   0.0000
073 C000500   0.0000
074 A000500      410
074 B000500        0
074 C000500        0
074 D000500        0
074 E000500      255
074 F000500     8275
074 G000500        0
074 H000500        0
074 I000500        0
074 J000500      334
074 K000500        0
074 L000500        4
074 M000500       19
074 N000500     9297
074 O000500      213
074 P000500        7
074 Q000500        0
074 R010500        0
074 R020500        0
074 R030500        0
074 R040500       24
074 S000500        0
074 T000500     9053
074 U010500      638
074 U020500        0
074 V010500    14.20
074 V020500     0.00
074 W000500   0.0000
074 X000500        9
074 Y000500        0
075 A000500        0
075 B000500     7115
076  000500     0.00
SIGNATURE   MARY JANE MALONEY
TITLE       MANAGER



<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001016073
<NAME> DRIEHAUS MUTUAL FUNDS
<SERIES>
   <NUMBER> 01
   <NAME> DRIEHAUS INTERNATIONAL GROWTH FUND

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<INVESTMENTS-AT-COST>                        198136211
<INVESTMENTS-AT-VALUE>                       253185681
<RECEIVABLES>                                  5078035
<ASSETS-OTHER>                                 6814744
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<PAYABLE-FOR-SECURITIES>                       8464551
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       671728
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     199244264
<SHARES-COMMON-STOCK>                         19638220
<SHARES-COMMON-PRIOR>                         19385212
<ACCUMULATED-NII-CURRENT>                     (414967)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        2110574
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      55002310
<NET-ASSETS>                                 255942181
<DIVIDEND-INCOME>                              1606801
<INTEREST-INCOME>                               124199
<OTHER-INCOME>                                       0
<EXPENSES-NET>                               (2145967)
<NET-INVESTMENT-INCOME>                       (414967)
<REALIZED-GAINS-CURRENT>                      10754546
<APPREC-INCREASE-CURRENT>                     19232819
<NET-CHANGE-FROM-OPS>                         29572398
<EQUALIZATION>                                       0
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<NUMBER-OF-SHARES-REDEEMED>                  (6683220)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                        32110967
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                   (11305657)
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<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          1747731
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                2145967
<AVERAGE-NET-ASSETS>                         234961932
<PER-SHARE-NAV-BEGIN>                            11.55
<PER-SHARE-NII>                                  (.02)
<PER-SHARE-GAIN-APPREC>                           1.50
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              13.03
<EXPENSE-RATIO>                                   1.84


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001016073
<NAME> DRIEHAUS MUTUAL FUNDS
<SERIES>
   <NUMBER> 02
   <NAME> DRIEHAUS EMERGING MARKETS GROWTH FUND

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<INVESTMENTS-AT-COST>                          4935960
<INVESTMENTS-AT-VALUE>                         6459213
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<OTHER-ITEMS-ASSETS>                                 0
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<PAYABLE-FOR-SECURITIES>                        318767
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        26512
<TOTAL-LIABILITIES>                             345279
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<PAID-IN-CAPITAL-COMMON>                       5456407
<SHARES-COMMON-STOCK>                           546229
<SHARES-COMMON-PRIOR>                           461247
<ACCUMULATED-NII-CURRENT>                      (24434)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (273727)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       1521398
<NET-ASSETS>                                   6679644
<DIVIDEND-INCOME>                                39327
<INTEREST-INCOME>                                 3840
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (67601)
<NET-INVESTMENT-INCOME>                        (24434)
<REALIZED-GAINS-CURRENT>                        567481
<APPREC-INCREASE-CURRENT>                      1301505
<NET-CHANGE-FROM-OPS>                          1844552
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         150389
<NUMBER-OF-SHARES-REDEEMED>                    (65407)
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         2651168
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     (895433)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            37579
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 180425
<AVERAGE-NET-ASSETS>                           5052099
<PER-SHARE-NAV-BEGIN>                             8.73
<PER-SHARE-NII>                                  (.04)
<PER-SHARE-GAIN-APPREC>                           3.54
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.23
<EXPENSE-RATIO>                                   2.70



</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001016073
<NAME> DRIEHAUS MUTUAL FUNDS
<SERIES>
   <NUMBER> 03
   <NAME> DRIEHAUS ASIA PACIFIC GROWTH FUND

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<INVESTMENTS-AT-COST>                          7034392
<INVESTMENTS-AT-VALUE>                        10281038
<RECEIVABLES>                                   354063
<ASSETS-OTHER>                                  511141
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                11146242
<PAYABLE-FOR-SECURITIES>                        649041
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        30861
<TOTAL-LIABILITIES>                             679902
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       6051428
<SHARES-COMMON-STOCK>                           617734
<SHARES-COMMON-PRIOR>                           501412
<ACCUMULATED-NII-CURRENT>                      (52727)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        1220623
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       3247016
<NET-ASSETS>                                  10466340
<DIVIDEND-INCOME>                                35354
<INTEREST-INCOME>                                 7367
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (95448)
<NET-INVESTMENT-INCOME>                        (52727)
<REALIZED-GAINS-CURRENT>                       1730890
<APPREC-INCREASE-CURRENT>                      2378415
<NET-CHANGE-FROM-OPS>                          4056578
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<NUMBER-OF-SHARES-SOLD>                         285880
<NUMBER-OF-SHARES-REDEEMED>                   (169558)
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<NET-CHANGE-IN-ASSETS>                         5501437
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     (706277)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            51497
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 188399
<AVERAGE-NET-ASSETS>                           6923095
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<PER-SHARE-NII>                                  (.09)
<PER-SHARE-GAIN-APPREC>                           7.13
<PER-SHARE-DIVIDEND>                                 0
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<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              16.94
<EXPENSE-RATIO>                                   2.78


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001016073
<NAME> DRIEHAUS MUTUAL FUNDS
<SERIES>
   <NUMBER> 04
   <NAME> DRIEHAUS EUROPEAN OPPORTUNITY FUND

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<INVESTMENTS-AT-COST>                          4607037
<INVESTMENTS-AT-VALUE>                         5487914
<RECEIVABLES>                                   289541
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                            471289
<TOTAL-ASSETS>                                 6248744
<PAYABLE-FOR-SECURITIES>                        547137
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        18422
<TOTAL-LIABILITIES>                             565559
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       5279010
<SHARES-COMMON-STOCK>                           524731
<SHARES-COMMON-PRIOR>                                1
<ACCUMULATED-NII-CURRENT>                       (3427)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                       (472865)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                        880467
<NET-ASSETS>                                   5683185
<DIVIDEND-INCOME>                                42878
<INTEREST-INCOME>                                 8252
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (54557)
<NET-INVESTMENT-INCOME>                         (3427)
<REALIZED-GAINS-CURRENT>                      (472865)
<APPREC-INCREASE-CURRENT>                       880467
<NET-CHANGE-FROM-OPS>                           404175
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         524730
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         5683175
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            38969
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 163227
<AVERAGE-NET-ASSETS>                           5357353
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                  (.01)
<PER-SHARE-GAIN-APPREC>                            .84
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              10.83
<EXPENSE-RATIO>                                   2.10



</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0001016073
<NAME> DRIEHAUS MUTUAL FUNDS
<SERIES>
   <NUMBER> 05
   <NAME> DRIEHAUS INTERNATIONAL DISCOVERY FUND

<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<INVESTMENTS-AT-COST>                          6063317
<INVESTMENTS-AT-VALUE>                         8530370
<RECEIVABLES>                                   337681
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                            428910
<TOTAL-ASSETS>                                 9296961
<PAYABLE-FOR-SECURITIES>                        212805
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        30711
<TOTAL-LIABILITIES>                             243516
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       6380010
<SHARES-COMMON-STOCK>                           637630
<SHARES-COMMON-PRIOR>                                1
<ACCUMULATED-NII-CURRENT>                      (32097)
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                         239304
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                       2466228
<NET-ASSETS>                                   9053445
<DIVIDEND-INCOME>                                44704
<INTEREST-INCOME>                                 8785
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                 (85586)
<NET-INVESTMENT-INCOME>                        (32097)
<REALIZED-GAINS-CURRENT>                        239304
<APPREC-INCREASE-CURRENT>                      2466228
<NET-CHANGE-FROM-OPS>                          2673435
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         637629
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                         9053435
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                            51755
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                 191547
<AVERAGE-NET-ASSETS>                           7115140
<PER-SHARE-NAV-BEGIN>                            10.00
<PER-SHARE-NII>                                  (.05)
<PER-SHARE-GAIN-APPREC>                           4.25
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              14.20
<EXPENSE-RATIO>                                   2.48



</TABLE>


                        EXHIBIT INDEX


Exhibit A: Attachment to item 77H:
           Changes in Control of Registant

- -------------------------------------------------------

Exhibit A:
Response to N-SAR Sub-Item 77H:  Changes in Control of Registrant

(A) Acquisition of Control

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                                    PERCENTAGE OF
                                  DESCRIPTION      SECURITIES OWNED
NAME OF SHAREHOLDER      DATE    OF TRANSACTION  (AS OF JUNE 30,1999)
- - - -  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

DRIEHAUS ASIA PACIFIC GROWTH FUND

The Richard H.
Driehaus Foundation     1/8/99   share purchase         45.1%



DRIEHAUS INTERNATIONAL DISCOVERY FUND*

Richard H. Driehaus     1/4/99   share purchase         39.2%

Driehaus Associates
Fund                    1/4/99   share purchase         29.8%

Driehaus Companies
Profit Sharing Plan
and Trust               1/5/99   share purchase         28.2%



DRIEHAUS EUROPEAN OPPORTUNITY FUND*

Richard H. Driehaus     1/4/99   share purchase         85.8%

* The Driehaus International Discovery Fund and the Driehaus
European Opportunity Fund each commenced investment operations on
January 4, 1999.  As of December 31, 1998, the sole shareholder of
each Fund was Robert F.  Moyer, an employee of Driehaus Capital
Management, Inc., the Funds' investment adviser.



(B) Cessation of Control

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                                    PERCENTAGE OF
                                  DESCRIPTION      SECURITIES OWNED
NAME OF SHAREHOLDER      DATE    OF TRANSACTION  (AS OF JUNE 30,1999)
- - - -  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

DRIEHAUS ASIA PACIFIC GROWTH FUND

Compass Pass-
Through Limited
Partnership             1/8/99    share redemption          0%






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