<PAGE> PAGE 1
000 A000000 10/31/99
000 C000000 0000762156
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 U
001 A000000 DREYFUS GNMA FUND, INC.
001 B000000 811-4215
001 C000000 2129226801
002 A000000 200 PARK AVENUE
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10166
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
015 A000001 MELLON BANK N.A.
015 B000001 C
015 C010001 PITTSBURGH
015 C020001 PA
015 C030001 15258
015 E010001 X
018 000000 Y
019 A000000 Y
019 B000000 162
019 C000000 DREYFUSFAM
022 A000001 UBS AG
022 B000001 13-2932996
022 C000001 2167149
022 D000001 0
022 A000002 BEAR, STEARNS & CO. INC.
022 B000002 13-3299429
022 C000002 812484
022 D000002 158763
022 A000003 GOLDMAN, SACHS & CO.
022 B000003 13-5108880
022 C000003 1466767
022 D000003 167915
022 A000004 NATIONSBANK MONTGOMERY
022 B000004 56-1684171
022 C000004 522249
022 D000004 619038
022 A000005 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP.
022 B000005 13-2741729
022 C000005 535021
<PAGE> PAGE 2
022 D000005 196116
022 A000006 NOMURA SECURITIES INTERNATIONAL, INC.
022 B000006 13-2642206
022 C000006 355461
022 D000006 298832
022 A000007 CS FIRST BOSTON CORPORATION
022 B000007 13-5659485
022 C000007 187740
022 D000007 203008
022 A000008 LEHMAN BROTHERS INC.
022 B000008 13-2518466
022 C000008 95951
022 D000008 18960
022 A000009 PRUDENTIAL SECURITIES INCORPORATED
022 B000009 22-2347336
022 C000009 64699
022 D000009 33207
022 A000010 MORGAN STANLEY DEAN WITTER & CO.
022 B000010 13-2655998
022 C000010 130713
022 D000010 137587
023 C000000 6560626
023 D000000 1936208
024 000000 Y
025 A000001 UBS AG
025 B000001 13-2932996
025 C000001 D
025 D000001 51365
025 A000002 CS FIRST BOSTON CORPORATION
025 B000002 13-5659485
025 C000002 D
025 D000002 30221
025 A000003 NOMURA SECURITIES INTERNATIONAL, INC.
025 B000003 13-2642206
025 C000003 D
025 D000003 23941
025 A000004 PRUDENTIAL SECURITIES INCORPORATED
025 B000004 22-2347336
025 C000004 D
025 D000004 6315
025 D000005 0
025 D000006 0
025 D000007 0
025 D000008 0
028 A010000 4953
028 A020000 4130
028 A030000 0
028 A040000 14228
028 B010000 4346
028 B020000 4226
028 B030000 0
<PAGE> PAGE 3
028 B040000 23777
028 C010000 4841
028 C020000 4106
028 C030000 0
028 C040000 21118
028 D010000 5114
028 D020000 4085
028 D030000 0
028 D040000 19657
028 E010000 16980
028 E020000 4098
028 E030000 0
028 E040000 27614
028 F010000 5102
028 F020000 4013
028 F030000 0
028 F040000 14430
028 G010000 41336
028 G020000 24658
028 G030000 0
028 G040000 120824
028 H000000 0
034 000000 N
035 000000 0
036 B000000 0
037 000000 N
038 000000 0
039 000000 N
040 000000 Y
041 000000 Y
042 A000000 71
042 B000000 0
042 C000000 29
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 819
044 000000 0
054 A000000 Y
054 B000000 Y
054 C000000 Y
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 Y
054 H000000 N
054 I000000 N
054 J000000 Y
054 K000000 N
<PAGE> PAGE 4
054 L000000 Y
054 M000000 Y
054 N000000 N
054 O000000 Y
055 A000000 Y
055 B000000 N
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
060 B000000 Y
061 000000 2500
062 A000000 Y
062 B000000 0.2
062 C000000 0.0
062 D000000 5.2
062 E000000 0.0
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 123.4
062 O000000 0.0
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
063 A000000 0
063 B000000 22.1
064 A000000 Y
064 B000000 N
070 A010000 Y
070 A020000 Y
070 B010000 N
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 N
070 D020000 N
070 E010000 Y
070 E020000 Y
070 F010000 N
070 F020000 N
070 G010000 N
070 G020000 N
070 H010000 N
070 H020000 N
070 I010000 N
<PAGE> PAGE 5
070 I020000 N
070 J010000 Y
070 J020000 Y
070 K010000 N
070 K020000 N
070 L010000 N
070 L020000 N
070 M010000 N
070 M020000 N
070 N010000 N
070 N020000 N
070 O010000 Y
070 O020000 Y
070 P010000 Y
070 P020000 Y
070 Q010000 N
070 Q020000 N
070 R010000 Y
070 R020000 N
071 A000000 2087046
071 B000000 2023979
071 C000000 1242259
071 D000000 163
072 A000000 6
072 B000000 37033
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 3064
072 G000000 0
072 H000000 0
072 I000000 496
072 J000000 102
072 K000000 0
072 L000000 43
072 M000000 31
072 N000000 23
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 29
072 S000000 12
072 T000000 817
072 U000000 0
072 V000000 0
072 W000000 103
072 X000000 4720
072 Y000000 0
072 Z000000 32313
072AA000000 9017
072BB000000 17138
<PAGE> PAGE 6
072CC010000 0
072CC020000 20707
072DD010000 32347
072DD020000 0
072EE000000 0
073 A010000 0.4510
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 7135
074 B000000 51365
074 C000000 1593
074 D000000 1215167
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 25880
074 K000000 0
074 L000000 7788
074 M000000 3
074 N000000 1308931
074 O000000 322995
074 P000000 795
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 871
074 S000000 0
074 T000000 984270
074 U010000 69616
074 U020000 0
074 V010000 14.14
074 V020000 0.00
074 W000000 0.0000
074 X000000 44745
074 Y000000 1593
075 A000000 0
075 B000000 1015730
076 000000 0.00
077 A000000 N
SIGNATURE ELBA VASQUEZ
TITLE ASSISTANT TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000762156
<NAME> DREYFUS GNMA FUND, INC.
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> APR-30-2000
<PERIOD-END> OCT-31-1999
<INVESTMENTS-AT-COST> 1291918
<INVESTMENTS-AT-VALUE> 1268125
<RECEIVABLES> 33668
<ASSETS-OTHER> 7138
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 1308931
<PAYABLE-FOR-SECURITIES> 322995
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 1666
<TOTAL-LIABILITIES> 324661
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 1079901
<SHARES-COMMON-STOCK> 69616
<SHARES-COMMON-PRIOR> 73500
<ACCUMULATED-NII-CURRENT> 8239
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> (80289)
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (23581)
<NET-ASSETS> 984270
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 37033
<OTHER-INCOME> 0
<EXPENSES-NET> 4720
<NET-INVESTMENT-INCOME> 32313
<REALIZED-GAINS-CURRENT> (8121)
<APPREC-INCREASE-CURRENT> (20707)
<NET-CHANGE-FROM-OPS> 3485
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (32347)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 2937
<NUMBER-OF-SHARES-REDEEMED> (8566)
<SHARES-REINVESTED> 1745
<NET-CHANGE-IN-ASSETS> (84077)
<ACCUMULATED-NII-PRIOR> 8657
<ACCUMULATED-GAINS-PRIOR> (72168)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 3064
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 4720
<AVERAGE-NET-ASSETS> 1015730
<PER-SHARE-NAV-BEGIN> 14.54
<PER-SHARE-NII> .46
<PER-SHARE-GAIN-APPREC> (.41)
<PER-SHARE-DIVIDEND> (.45)
<PER-SHARE-DISTRIBUTIONS> 0
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 14.14
<EXPENSE-RATIO> .009
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0
</TABLE>