<PAGE> PAGE 1
000 A000000 08/31/97
000 C000000 030162
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 GROWTH OPPORTUNITY FUND, INC.
001 B000000 811-1899
001 C000000 2129226775
002 A000000 200 PARK AVENUE
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10166
002 D020000 0000
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
018 000000 Y
019 A000000 Y
019 B000000 148
019 C000000 DREYFUSFAM
020 A000001 LEHMAN BROTHERS INC.
020 B000001 13-2518466
020 C000001 74
020 A000002 SMITH BARNEY INC.
020 B000002 13-1912900
020 C000002 73
020 A000003 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
020 B000003 13-5674085
020 C000003 50
020 A000004 W.I. CARR (AMERICA) LTD.
020 B000004 13-2927466
020 C000004 50
020 A000005 MORGAN STANLEY & CO. INCORPORATED
020 B000005 13-2655998
020 C000005 36
020 A000006 MONTGOMERY SECURITIES
020 B000006 94-1701676
020 C000006 36
020 A000007 OPPENEIMER & CO., INC.
020 B000007 13-2798343
020 C000007 33
020 A000008 SANFORD C. BERNSTEIN & CO., INC.
020 B000008 13-2625874
020 C000008 29
<PAGE> PAGE 2
020 A000009 GERARD KLAUER MATTISON & CO., INC.
020 B000009 13-3274080
020 C000009 28
020 A000010 J.P. MORGAN SECURITIES INC.
020 B000010 13-3224016
020 C000010 26
021 000000 826
022 A000001 G.X. CLARKE & CO.,
022 B000001 13-2969143
022 C000001 472120
022 D000001 595559
022 A000002 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP.
022 B000002 13-2741729
022 C000002 79257
022 D000002 24200
022 A000003 PAINEWEBBER INCORPORATED
022 B000003 13-2638166
022 C000003 57551
022 D000003 0
022 A000004 NIKKO SECURITIES CO. INTERNATIONAL, INC.
022 B000004 94-1302123
022 C000004 47550
022 D000004 0
022 A000005 AUBREY G. LANSTON & CO. INC.
022 B000005 13-5552129
022 C000005 39049
022 D000005 0
022 A000006 SANWA SECURITIES (USA) CO., L.P.
022 B000006 13-3046258
022 C000006 38799
022 D000006 0
022 A000007 CHASE SECURITIES, INC.
022 B000007 13-3112953
022 C000007 0
022 D000007 34601
022 A000008 DILLION, READ & CO. INC.
022 B000008 13-1939216
022 C000008 10820
022 D000008 21503
022 A000009 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
022 B000009 13-5674085
022 C000009 21069
022 D000009 1713
022 A000010 GOLDMAN, SACHS & CO.
022 B000010 13-5108880
022 C000010 0
022 D000010 11531
023 C000000 807676
023 D000000 705250
024 000000 N
028 A010000 111572
<PAGE> PAGE 3
028 A020000 25294
028 A030000 0
028 A040000 115026
028 B010000 104460
028 B020000 0
028 B030000 0
028 B040000 95179
028 C010000 128846
028 C020000 0
028 C030000 0
028 C040000 116539
028 D010000 98934
028 D020000 0
028 D030000 0
028 D040000 124550
028 E010000 135485
028 E020000 0
028 E030000 0
028 E040000 132561
028 F010000 131783
028 F020000 0
028 F030000 0
028 F040000 121467
028 G010000 711080
028 G020000 25294
028 G030000 0
028 G040000 705322
028 H000000 0
062 A000000 N
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
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 0.0
062 O000000 0.0
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
070 A010000 Y
070 A020000 N
070 B010000 Y
070 B020000 N
070 C010000 Y
<PAGE> PAGE 4
070 C020000 N
070 D010000 Y
070 D020000 N
070 E010000 N
070 E020000 N
070 F010000 Y
070 F020000 Y
070 G010000 N
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 Y
070 I020000 N
070 J010000 Y
070 J020000 N
070 K010000 Y
070 K020000 N
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 N
070 N010000 Y
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 286210
071 B000000 283949
071 C000000 484313
071 D000000 59
072 A000000 6
072 B000000 509
072 C000000 3852
072 D000000 0
072 E000000 0
072 F000000 1889
072 G000000 0
072 H000000 0
072 I000000 511
072 J000000 74
072 K000000 0
072 L000000 19
072 M000000 39
072 N000000 51
072 O000000 0
072 P000000 8
<PAGE> PAGE 5
072 Q000000 0
072 R000000 18
072 S000000 10
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 1
072 X000000 2620
072 Y000000 0
072 Z000000 1741
072AA000000 55818
072BB000000 10994
072CC010000 18054
072CC020000 0
072DD010000 596
072DD020000 0
072EE000000 25484
073 A010000 0.0100
073 A020000 0.0000
073 B000000 0.5600
073 C000000 0.0000
074 A000000 0
074 B000000 0
074 C000000 36009
074 D000000 0
074 E000000 8529
074 F000000 510996
074 G000000 0
074 H000000 0
074 I000000 0
074 J000000 8236
074 K000000 0
074 L000000 995
074 M000000 27
074 N000000 564792
074 O000000 20883
074 P000000 416
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 2242
074 S000000 0
074 T000000 541251
074 U010000 49466
074 U020000 0
074 V010000 10.94
074 V020000 0.00
074 W000000 0.0000
074 X000000 22273
074 Y000000 0
<PAGE> PAGE 6
075 A000000 0
075 B000000 503992
076 000000 0.00
077 A000000 N
078 000000 N
SIGNATURE MICHAEL PETRUCELLI
TITLE ASSISTANT TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000030162
<NAME> DREYFUS GROWTH OPPORTUNITY FUND, INC.
<MULTIPLIER> 1000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> FEB-28-1998
<PERIOD-END> AUG-31-1997
<INVESTMENTS-AT-COST> 475279
<INVESTMENTS-AT-VALUE> 555534
<RECEIVABLES> 9230
<ASSETS-OTHER> 27
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 564791
<PAYABLE-FOR-SECURITIES> 20883
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 2657
<TOTAL-LIABILITIES> 23540
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 415728
<SHARES-COMMON-STOCK> 49466
<SHARES-COMMON-PRIOR> 46147
<ACCUMULATED-NII-CURRENT> 1736
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 44455
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 79332
<NET-ASSETS> 541251
<DIVIDEND-INCOME> 3852
<INTEREST-INCOME> 509
<OTHER-INCOME> 0
<EXPENSES-NET> 2620
<NET-INVESTMENT-INCOME> 1741
<REALIZED-GAINS-CURRENT> 44824
<APPREC-INCREASE-CURRENT> 18054
<NET-CHANGE-FROM-OPS> 64619
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (596)
<DISTRIBUTIONS-OF-GAINS> (25484)
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 68224
<NUMBER-OF-SHARES-REDEEMED> (67605)
<SHARES-REINVESTED> 2699
<NET-CHANGE-IN-ASSETS> 69591
<ACCUMULATED-NII-PRIOR> 590
<ACCUMULATED-GAINS-PRIOR> 25116
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 1889
<INTEREST-EXPENSE> 8
<GROSS-EXPENSE> 2620
<AVERAGE-NET-ASSETS> 503922
<PER-SHARE-NAV-BEGIN> 10.22
<PER-SHARE-NII> .04
<PER-SHARE-GAIN-APPREC> 1.25
<PER-SHARE-DIVIDEND> (.01)
<PER-SHARE-DISTRIBUTIONS> (.56)
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 10.94
<EXPENSE-RATIO> .005
<AVG-DEBT-OUTSTANDING> 75
<AVG-DEBT-PER-SHARE> .002
</TABLE>
