DREYFUS GOVERNMENT CASH MANAGEMENT
NSAR-A, 1998-09-25
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<PAGE>      PAGE  1
000 A000000 07/31/98
000 C000000 0000740766
000 D000000 N
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000 J000000 U
001 A000000 DREYFUS GOVERNMENT CASH MANAGEMENT FUNDS
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001 C000000 2129226754
002 A000000 200 PARK AVENUE
002 B000000 NEW YORK
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007 C030100 N
007 C010200  2
007 C020200 DREYFUS GOVERNMENT PRIME CASH MANAGEMENT
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007 C010400  4
007 C010500  5
007 C010600  6
007 C010700  7
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008 D01AA01 NEW YORK
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011 A00AA01 PREMIER MUTUAL FUND SERVICES, INC.
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011 C01AA01 NEW YORK
011 C02AA01 NY
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012 A00AA01 DREYFUS TRANSFER, INC.
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<PAGE>      PAGE  2
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SIGNATURE   MICHAEL S. PETRUCELLI                        
TITLE       ASSISTANT TREASURER 
 


<TABLE> <S> <C>

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<CIK> 0000740766
<NAME> DREFUS GOVERNMENT CASH MANAGEMENT FUNDS
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   <NUMBER> 1
   <NAME> DREYFUS GOVERNMENT CASH MANAGEMENT-INSTITUTIONAL
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</TABLE>

<TABLE> <S> <C>

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<NAME> DREFUS GOVERNMENT CASH MANAGEMENT FUNDS
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</TABLE>

<TABLE> <S> <C>

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<CIK> 0000740766
<NAME> DREFUS GOVERNMENT CASH MANAGEMENT FUNDS
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000740766
<NAME> DREFUS GOVERNMENT CASH MANAGEMENT FUNDS
<SERIES>
   <NUMBER> 4
   <NAME> DREYFUS GOVERNMENT CASH MANAGEMENT-PARTICIPANT
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                          5389608
<INVESTMENTS-AT-VALUE>                         5389608
<RECEIVABLES>                                    38229
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                                 5427837
<PAYABLE-FOR-SECURITIES>                         24977
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                        44182
<TOTAL-LIABILITIES>                              69159
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                       5359417
<SHARES-COMMON-STOCK>                           157232
<SHARES-COMMON-PRIOR>                            30515
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (739)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                    157231
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                               142575
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                    6036
<NET-INVESTMENT-INCOME>                         136539
<REALIZED-GAINS-CURRENT>                             0
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                           136539
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                        (998)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         689470
<NUMBER-OF-SHARES-REDEEMED>                   (563221)
<SHARES-REINVESTED>                                468
<NET-CHANGE-IN-ASSETS>                          176525
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                        (739)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                             5082
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                   6036
<AVERAGE-NET-ASSETS>                             39802
<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                   .025
<PER-SHARE-GAIN-APPREC>                           .000
<PER-SHARE-DIVIDEND>                            (.025)
<PER-SHARE-DISTRIBUTIONS>                         .000
<RETURNS-OF-CAPITAL>                              .000
<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                   .006
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000740766
<NAME> DREFUS GOVERNMENT CASH MANAGEMENT FUNDS
<SERIES>
   <NUMBER> 5
   <NAME> DREYFUS GOVERNMENT PRIME CASH MANAGEMENT-INSTITUTIONAL
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                           302184
<INVESTMENTS-AT-VALUE>                          302184
<RECEIVABLES>                                     1209
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                               556
<TOTAL-ASSETS>                                  303949
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          107
<TOTAL-LIABILITIES>                                107
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        303842
<SHARES-COMMON-STOCK>                           106098
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (739)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                    106098
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 4683
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     384
<NET-INVESTMENT-INCOME>                           4299
<REALIZED-GAINS-CURRENT>                             0
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                             4299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (1620)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         160623
<NUMBER-OF-SHARES-REDEEMED>                    (56146)
<SHARES-REINVESTED>                               1621
<NET-CHANGE-IN-ASSETS>                          303842
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
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<AVERAGE-NET-ASSETS>                             71352
<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                   .023
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<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                   .002
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000740766
<NAME> DREFUS GOVERNMENT CASH MANAGEMENT FUNDS
<SERIES>
   <NUMBER> 6
   <NAME> DREYFUS GOVERNMENT PRIME CASH MANAGEMENT-INVESTOR
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                           302184
<INVESTMENTS-AT-VALUE>                          302184
<RECEIVABLES>                                     1209
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                               556
<TOTAL-ASSETS>                                  303949
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          107
<TOTAL-LIABILITIES>                                107
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        303842
<SHARES-COMMON-STOCK>                             3023
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (739)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                      3023
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 4683
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     384
<NET-INVESTMENT-INCOME>                           4299
<REALIZED-GAINS-CURRENT>                             0
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                             4299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                         (29)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                          45587
<NUMBER-OF-SHARES-REDEEMED>                    (42588)
<SHARES-REINVESTED>                                 23
<NET-CHANGE-IN-ASSETS>                          303842
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              169
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    384
<AVERAGE-NET-ASSETS>                              1336
<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                   .022
<PER-SHARE-GAIN-APPREC>                           .000
<PER-SHARE-DIVIDEND>                            (.022)
<PER-SHARE-DISTRIBUTIONS>                         .000
<RETURNS-OF-CAPITAL>                              .000
<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                   .005
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000740766
<NAME> DREFUS GOVERNMENT CASH MANAGEMENT FUNDS
<SERIES>
   <NUMBER> 7
   <NAME> DREYFUS GOVERNMENT PRIME CASH MANAGEMENT-ADMINISTRATIVE
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                           302184
<INVESTMENTS-AT-VALUE>                          302184
<RECEIVABLES>                                     1209
<ASSETS-OTHER>                                       0
<OTHER-ITEMS-ASSETS>                               556
<TOTAL-ASSETS>                                  303949
<PAYABLE-FOR-SECURITIES>                             0
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                          107
<TOTAL-LIABILITIES>                                107
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        303842
<SHARES-COMMON-STOCK>                                0
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (739)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                         0
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 4683
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     384
<NET-INVESTMENT-INCOME>                           4299
<REALIZED-GAINS-CURRENT>                             0
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                             4299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                          303842
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                              169
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                    384
<AVERAGE-NET-ASSETS>                                 0
<PER-SHARE-NAV-BEGIN>                             1.00
<PER-SHARE-NII>                                   .022
<PER-SHARE-GAIN-APPREC>                           .000
<PER-SHARE-DIVIDEND>                            (.022)
<PER-SHARE-DISTRIBUTIONS>                         .000
<RETURNS-OF-CAPITAL>                              .000
<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                   .003
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000740766
<NAME> DREFUS GOVERNMENT CASH MANAGEMENT FUNDS
<SERIES>
   <NUMBER> 8
   <NAME> DREYFUS GOVERNMENT PRIME CASH MANAGEMENT-PARTICIPANT
<MULTIPLIER> 1000
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JAN-31-1999
<PERIOD-END>                               JUL-31-1998
<INVESTMENTS-AT-COST>                           302184
<INVESTMENTS-AT-VALUE>                          302184
<RECEIVABLES>                                     1209
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<TOTAL-ASSETS>                                  303949
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<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                        303842
<SHARES-COMMON-STOCK>                           194721
<SHARES-COMMON-PRIOR>                                0
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<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                          (739)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                             0
<NET-ASSETS>                                    194721
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                                 4683
<OTHER-INCOME>                                       0
<EXPENSES-NET>                                     384
<NET-INVESTMENT-INCOME>                           4299
<REALIZED-GAINS-CURRENT>                             0
<APPREC-INCREASE-CURRENT>                            0
<NET-CHANGE-FROM-OPS>                             4299
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                       (2650)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         298391
<NUMBER-OF-SHARES-REDEEMED>                   (106319)
<SHARES-REINVESTED>                               2650
<NET-CHANGE-IN-ASSETS>                          303842
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                            0
<OVERDISTRIB-NII-PRIOR>                              0
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<INTEREST-EXPENSE>                                   0
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<AVERAGE-NET-ASSETS>                            125726
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<PER-SHARE-NAV-END>                               1.00
<EXPENSE-RATIO>                                   .006
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>


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