<PAGE> PAGE 1
000 A000000 11/30/93
000 C000000 0000312564
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 U
001 A000000 DREYFUS MUNICIPAL MONEY MARKET FUND, INC.
001 B000000 811-2946
001 C000000 2129226787
002 A000000 144 GLENN CURTISS BOULEVARD
002 B000000 UNIONDALE
002 C000000 NY
002 D010000 11566
002 D020000 0144
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
013 A000001 ERNST & YOUNG
013 B010001 NEW YORK
013 B020001 NY
013 B030001 10019
015 A000001 THE BANK OF NEW YORK
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E010001 X
015 A000002 BANKERS TRUST COMPANY
015 B000002 S
015 C010002 NEW YORK
015 C020002 NY
015 C030002 10015
015 E010002 X
015 A000003 DELETE
018 000000 Y
019 A000000 Y
019 B000000 103
019 C000000 DREYFUSFAM
022 A000001 B.T. SECURITIES CORPORATION
022 B000001 13-3131014
022 C000001 307372
022 D000001 256970
022 A000002 GOLDMAN, SACHS & CO.
022 B000002 13-5108880
022 C000002 237541
<PAGE> PAGE 2
022 D000002 162550
022 A000003 LEHMAN BROTHERS, INC.
022 C000003 135271
022 D000003 73543
022 A000004 THE FIRST BOSTON CORPORATION
022 B000004 13-5659485
022 C000004 128794
022 D000004 30500
022 A000005 CHEMICAL SECURITIES, INC.
022 B000005 13-3379014
022 C000005 62930
022 D000005 89998
022 A000006 MORGAN STANLEY & CO. INCORPORATED
022 B000006 13-2655998
022 C000006 69730
022 D000006 74765
022 A000007 PAINEWEBBER INCORPORATED
022 B000007 13-2638166
022 C000007 62500
022 D000007 16000
022 A000008 J.P. MORGAN SECURITIES INC.
022 B000008 13-3224016
022 C000008 24500
022 D000008 41802
022 A000009 SMITH BARNEY SHEARSON INC.
022 B000009 13-1912900
022 C000009 0
022 D000009 55840
022 A000010 MERRILL LYNCH PIERCE, FENNER & SMITH INC.
022 B000010 13-5674085
022 C000010 30099
022 D000010 10046
023 C000000 1311230
023 D000000 887211
028 A010000 275403
028 A020000 1496
028 A030000 0
028 A040000 399709
028 B010000 474945
028 B020000 1557
028 B030000 0
028 B040000 340220
028 C010000 259793
028 C020000 1634
028 C030000 0
028 C040000 443078
028 D010000 454404
028 D020000 1613
028 D030000 0
028 D040000 315959
028 E010000 468759
<PAGE> PAGE 3
028 E020000 1651
028 E030000 0
028 E040000 453100
028 F010000 320647
028 F020000 1560
028 F030000 0
028 F040000 335226
028 G010000 2253951
028 G020000 9511
028 G030000 0
028 G040000 2287292
028 H000000 0
062 A000000 Y
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
062 E000000 98.1
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 0.0
062 J000000 0.0
062 K000000 0.0
062 L000000 0.0
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
063 A000000 64
063 B000000 0.0
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
071 A000000 0
071 B000000 0
071 C000000 0
071 D000000 0
072 A000000 6
072 B000000 17582
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 3374
072 G000000 0
072 H000000 0
072 I000000 596
072 J000000 49
<PAGE> PAGE 4
072 K000000 0
072 L000000 25
072 M000000 19
072 N000000 27
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 12
072 S000000 17
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 13
072 X000000 4132
072 Y000000 0
072 Z000000 13450
072AA000000 94
072BB000000 68
072CC010000 215
072CC020000 0
072DD010000 13450
072DD020000 0
072EE000000 0
073 A010000 0.0100
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 19336
074 B000000 0
074 C000000 1364229
074 D000000 0
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 0
074 K000000 0
074 L000000 7609
074 M000000 198
074 N000000 1391372
074 O000000 0
074 P000000 573
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 572
074 S000000 0
074 T000000 1390227
074 U010000 1392401
<PAGE> PAGE 5
074 U020000 0
074 V010000 1.00
074 V020000 0.00
074 W000000 0.9986
074 X000000 21651
074 Y000000 0
075 A000000 1345759
075 B000000 0
076 000000 0.00
077 A000000 N
SIGNATURE JOHN J. PYBURN
TITLE TREASURER