PIONEER MONEY MARKET TRUST
NSAR-A, 1997-08-26
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<PAGE>      PAGE  1
000 A000000 06/30/97
000 C000000 0000812195
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 A
001 A000000 PIONEER MONEY MARKET TRUST
001 B000000 811-5099
001 C000000 6177427825
002 A000000 60 STATE STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02109
002 D020000 1820
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  1
007 C010100  1
007 C020100 PIONEER CASH RESERVES FUND
007 C030100 N
007 C010200  2
007 C010300  3
007 C010400  4
007 C010500  5
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
008 A00AA01 PIONEERING MANAGEMENT CORPORATION
008 B00AA01 A
008 C00AA01 801-8255
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02109
008 D04AA01 1820
011 A00AA01 PIONEER FUNDS DISTRIBUTOR, INC.
011 B00AA01 8-41256
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02109
011 C04AA01 1820
012 A00AA01 PIONEERING SERVICES CORPORATION
012 B00AA01 84-1359
012 C01AA01 BOSTON
<PAGE>      PAGE  2
012 C02AA01 MA
012 C03AA01 02109
012 C04AA01 1820
013 A00AA01 ARTHUR ANDERSEN LLP
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02110
013 B04AA01 2604
015 A00AA01 BROWN BROTHERS HARRIMAN & CO.
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02110
015 C04AA01 1820
015 E01AA01 X
015 A00AA02 NATIONAL AUSTRALIA BANK
015 B00AA02 S
015 C01AA02 MELBOURNE
015 D01AA02 AUSTRALIA
015 E04AA02 X
015 A00AA03 CREDITANSTALT BANKVEREIN
015 B00AA03 S
015 C01AA03 VIENNA
015 D01AA03 AUSTRIA
015 E04AA03 X
015 A00AA04 BANQUE BRUXELLES LAMBERT
015 B00AA04 S
015 C01AA04 BRUSSELS
015 D01AA04 BELGIUM
015 E04AA04 X
015 A00AA05 DEN DANSKE BANK
015 B00AA05 S
015 C01AA05 COPENHAGEN
015 D01AA05 DENMARK
015 E04AA05 X
015 A00AA06 MERITA BANK
015 B00AA06 S
015 C01AA06 HELSINKI
015 D01AA06 FINLAND
015 E04AA06 X
015 A00AA07 BANQUE PARIBAS
015 B00AA07 S
015 C01AA07 PARIS
015 D01AA07 FRANCE
015 E04AA07 X
015 A00AA08 DRESDNER BANK
015 B00AA08 S
015 C01AA08 FRANKFURT
015 D01AA08 GERMANY
015 E04AA08 X
015 A00AA09 STANDARD CHARTERED BANK
<PAGE>      PAGE  3
015 B00AA09 S
015 C01AA09 HONG KONG
015 D01AA09 HONG KONG
015 E04AA09 X
015 A00AA10 BANCA COMMERCIALE ITALIANA
015 B00AA10 S
015 C01AA10 MILAN
015 D01AA10 ITALY
015 E04AA10 X
015 A00AA11 SUMITOMO TRUST & BANKING CO. LTD.
015 B00AA11 S
015 C01AA11 TOKYO
015 D01AA11 JAPAN
015 E04AA11 X
015 A00AA12 CITIBANK, N.A.
015 B00AA12 S
015 C01AA12 SEOUL
015 D01AA12 KOREA
015 E04AA12 X
015 A00AA13 HONGKONG BANK MALAYSIA BERHAD
015 B00AA13 S
015 C01AA13 KUALA LUMPUR
015 D01AA13 MALAYSIA
015 E04AA13 X
015 A00AA14 CITIBANK, MEXICO, S.A.
015 B00AA14 S
015 C01AA14 MEXICO CITY
015 D01AA14 MEXICO
015 E04AA14 X
015 A00AA15 ABN/AMRO BANK
015 B00AA15 S
015 C01AA15 AMSTERDAM
015 D01AA15 NETHERLANDS
015 E04AA15 X
015 A00AA16 DEN NORSKE BANK
015 B00AA16 S
015 C01AA16 OSLO
015 D01AA16 NORWAY
015 E04AA16 X
015 A00AA17 CITIBANK, N.A.
015 B00AA17 S
015 C01AA17 MANILA
015 D01AA17 PHILIPPINES
015 E04AA17 X
015 A00AA18 BANCO ESPIRITO SANTO COMMERICIAL DE LISBOA
015 B00AA18 S
015 C01AA18 LISBON
015 D01AA18 PORTUGAL
015 E04AA18 X
015 A00AA19 STANDARD CHARTERED BANK
015 B00AA19 S
<PAGE>      PAGE  4
015 C01AA19 SINGAPORE
015 D01AA19 SINGAPORE
015 E04AA19 X
015 A00AA20 BANCO SANTANDER
015 B00AA20 S
015 C01AA20 MADRID
015 D01AA20 SPAIN
015 E04AA20 X
015 A00AA21 SKANDINAVISKA ENSKILDA BANKEN
015 B00AA21 S
015 C01AA21 STOCKHOLM
015 D01AA21 SWEDEN
015 E04AA21 X
015 A00AA22 SWISS BANK CORP.
015 B00AA22 S
015 C01AA22 ZURICH
015 D01AA22 SWITZERLAND
015 E04AA22 X
015 A00AA23 CENTRAL TRUST OF CHINA
015 B00AA23 S
015 C01AA23 TAIPEI
015 D01AA23 TAIWAN
015 E04AA23 X
015 A00AA24 HONG KONG & SHANGHAI BANKING CORP.
015 B00AA24 S
015 C01AA24 BANGKOK
015 D01AA24 THAILAND
015 E04AA24 X
015 A00AA25 ROYAL BANK OF SCOTLAND
015 B00AA25 S
015 C01AA25 LONDON
015 D01AA25 UNITED KINGDOM
015 E04AA25 X
015 A00AA26 CITIBANK, N.A.
015 B00AA26 S
015 C01AA26 BUENOS AIRES
015 D01AA26 ARGENTINA
015 E04AA26 X
015 A00AA27 THE FIRST NATIONAL BANK OF BOSTON
015 B00AA27 S
015 C01AA27 SAO PAULO
015 D01AA27 BRAZIL
015 E04AA27 X
015 A00AA28 CANADIAN IMPERIAL BANK OF COMMERCE
015 B00AA28 S
015 C01AA28 TORONTO
015 D01AA28 CANADA
015 E04AA28 X
015 A00AA29 CITIBANK, N.A.
015 B00AA29 S
015 C01AA29 SANTIAGO
<PAGE>      PAGE  5
015 D01AA29 CHILE
015 E04AA29 X
015 A00AA30 STANDARD CHARTERED BANK
015 B00AA30 S
015 C01AA30 SHANGHAI
015 D01AA30 CHINA
015 E04AA30 X
015 A00AA31 STANDARD CHARTERED BANK
015 B00AA31 S
015 C01AA31 SHENZHEN
015 D01AA31 CHINA
015 E04AA31 X
015 A00AA32 CITITRUST COLOMBIA, S.A., SOCIEDAD FIDUCIARIA
015 B00AA32 S
015 C01AA32 BOGOTA
015 D01AA32 COLOMBIA
015 E04AA32 X
015 A00AA33 CESKOSLOVENSKA OBCHODNI BANKA, A.S.
015 B00AA33 S
015 C01AA33 PRAGUE
015 D01AA33 CZECH REPUBLIC
015 E04AA33 X
015 A00AA34 CITIBANK, N.A.
015 B00AA34 S
015 C01AA34 ATHENS
015 D01AA34 GREECE
015 E04AA34 X
015 A00AA35 CITIBANK, BUDAPEST RT FOR CITIBANK, N.A.
015 B00AA35 S
015 C01AA35 BUDAPEST
015 D01AA35 HUNGARY
015 E04AA35 X
015 A00AA36 CITIBANK, N.A.
015 B00AA36 S
015 C01AA36 MUMBAI
015 D01AA36 INDIA
015 E04AA36 X
015 A00AA37 STANDARD CHARTERED BANK
015 B00AA37 S
015 C01AA37 MUMBAI
015 D01AA37 INDIA
015 E04AA37 X
015 A00AA38 CITIBANK, N.A.
015 B00AA38 S
015 C01AA38 JAKARTA
015 D01AA38 INDONESIA
015 E04AA38 X
015 A00AA39 ALLIED IRISH BANKS PLC
015 B00AA39 S
015 C01AA39 DUBLIN
015 D01AA39 IRELAND
<PAGE>      PAGE  6
015 E04AA39 X
015 A00AA40 BANK HAPOALIM B.M.
015 B00AA40 S
015 C01AA40 TEL AVIV
015 D01AA40 ISRAEL
015 E04AA40 X
015 A00AA41 BANQUE MAROCAINE DU COMMERCE EXTERIEUR
015 B00AA41 S
015 C01AA41 CASABLANCA
015 D01AA41 MOROCCO
015 E04AA41 X
015 A00AA42 NATIONAL AUSTRALIA BANK LTD
015 B00AA42 S
015 C01AA42 AUCKLAND
015 D01AA42 NEW ZEALAND
015 E04AA42 X
015 A00AA43 STANDARD CHARTERED BANK
015 B00AA43 S
015 C01AA43 KARACHI
015 D01AA43 PAKISTAN
015 E04AA43 X
015 A00AA44 CITIBANK, N.A.
015 B00AA44 S
015 C01AA44 LIMA
015 D01AA44 PERU
015 E04AA44 X
015 A00AA45 CITIBANK (POLAND), S.A. FOR CITIBANK, N.A.
015 B00AA45 S
015 C01AA45 WARSAW
015 D01AA45 POLAND
015 E04AA45 X
015 A00AA46 FIRST NATIONAL BANK OF SOUTHERN AFRICA
015 B00AA46 S
015 C01AA46 JOHANNESBURG
015 D01AA46 SOUTH AFRICA
015 E04AA46 X
015 A00AA47 HONGKONG & SHANGHAI BANKING CORP.
015 B00AA47 S
015 C01AA47 COLOMBO
015 D01AA47 SRI LANKA
015 E04AA47 X
015 A00AA48 CITIBANK, N.A.
015 B00AA48 S
015 C01AA48 ISTANBUL
015 D01AA48 TURKEY
015 E04AA48 X
015 A00AA49 THE FIRST NATIONAL BANK OF BOSTON
015 B00AA49 S
015 C01AA49 MONTEVIDEO
015 D01AA49 URUGUAY
015 E04AA49 X
<PAGE>      PAGE  7
015 A00AA50 CITIBANK, N.A.
015 B00AA50 S
015 C01AA50 CARACAS
015 D01AA50 VENEZUELA
015 E04AA50 X
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   31
019 C00AA00 PIONEERFDS
020 C000001      0
020 C000002      0
020 C000003      0
020 C000004      0
020 C000005      0
020 C000006      0
020 C000007      0
020 C000008      0
020 C000009      0
020 C000010      0
021  000000        0
022 A000001 BROWN BROTHERS
022 B000001 13-4973745
022 C000001    454690
022 D000001         0
022 A000002 HOUSEHOLD FINANCE
022 B000002 36-1239445
022 C000002    151892
022 D000002         0
022 A000003 LUMMIS & CO
022 B000003 06-0909285
022 C000003    130953
022 D000003         0
022 A000004 WILLIAMS  CAPITAL
022 B000004 23-2177819
022 C000004    127860
022 D000004         0
022 A000005 EUROBROKERS
022 C000005     88218
022 D000005         0
022 A000006 CHEVRON OIL FINANCE
022 B000006 25-1215010
022 C000006     54123
022 D000006         0
022 A000007 PRUDENTIAL FUNDING
022 B000007 22-2347336
022 C000007     50487
022 D000007         0
022 A000008 LANSTON, AUBREG G
022 B000008 13-5552129
022 C000008     35000
022 D000008         0
<PAGE>      PAGE  8
022 A000009 GOLDMAN SACHS
022 B000009 13-5108880
022 C000009     34812
022 D000009         0
022 C000010         0
022 D000010         0
023 C000000    1434951
023 D000000          0
024  00AA00 N
025 D00AA01       0
025 D00AA02       0
025 D00AA03       0
025 D00AA04       0
025 D00AA05       0
025 D00AA06       0
025 D00AA07       0
025 D00AA08       0
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 Y
029  00AA00 N
030 A00AA00      0
030 B00AA00  0.00
030 C00AA00  0.00
031 A00AA00      0
031 B00AA00      0
032  00AA00      0
033  00AA00      0
045  00AA00 Y
046  00AA00 N
047  00AA00 Y
048  00AA00  0.400
048 A01AA00        0
048 A02AA00 0.000
048 B01AA00        0
048 B02AA00 0.000
048 C01AA00        0
048 C02AA00 0.000
048 D01AA00        0
048 D02AA00 0.000
048 E01AA00        0
048 E02AA00 0.000
048 F01AA00        0
048 F02AA00 0.000
<PAGE>      PAGE  9
048 G01AA00        0
048 G02AA00 0.000
048 H01AA00        0
048 H02AA00 0.000
048 I01AA00        0
048 I02AA00 0.000
048 J01AA00        0
048 J02AA00 0.000
048 K01AA00        0
048 K02AA00 0.000
054 A00AA00 Y
054 B00AA00 N
054 C00AA00 N
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 Y
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 N
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 N
058 A00AA00 N
059  00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061  00AA00     1000
077 A000000 N
078  000000 N
080 C00AA00        0
081 B00AA00   0
082 B00AA00        0
083 B00AA00        0
084 B00AA00        0
086 A010000      0
086 A020000      0
086 B010000      0
086 B020000      0
086 C010000      0
086 C020000      0
086 D010000      0
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086 F010000      0
086 F020000      0
028 A010100     34059
028 A020100       716
<PAGE>      PAGE  10
028 A030100         0
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028 B010100     39117
028 B020100       636
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028 B040100     31409
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028 C020100       702
028 C030100         0
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028 D010100     64419
028 D020100       813
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028 D040100     61801
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028 E020100       814
028 E030100         0
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028 F010100     38567
028 F020100       744
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028 G020100      4425
028 G030100         0
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034  000100 Y
035  000100     58
036 A000100 N
036 B000100      0
037  000100 N
038  000100      0
039  000100 N
040  000100 Y
041  000100 Y
042 A000100   0
042 B000100   0
042 C000100   0
042 D000100 100
042 E000100   0
042 F000100   0
042 G000100   0
042 H000100   0
043  000100    209
044  000100      0
049  000100 N
050  000100 N
051  000100 N
052  000100 N
053 A000100 Y
<PAGE>      PAGE  11
053 B000100 Y
053 C000100 N
055 A000100 N
055 B000100 N
056  000100 Y
057  000100 N
062 A000100 Y
062 B000100   0.0
062 C000100   9.1
062 D000100   5.9
062 E000100   0.0
062 F000100   0.0
062 G000100   0.0
062 H000100   0.0
062 I000100  85.0
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062 O000100   0.0
062 P000100   0.0
062 Q000100   0.0
062 R000100   0.0
063 A000100  38
063 B000100  0.0
064 A000100 N
064 B000100 N
066 A000100 N
067  000100 N
068 A000100 N
068 B000100 N
069  000100 N
070 A010100 Y
070 A020100 Y
070 B010100 N
070 B020100 N
070 C010100 N
070 C020100 N
070 D010100 N
070 D020100 N
070 E010100 N
070 E020100 N
070 F010100 N
070 F020100 N
070 G010100 N
070 G020100 N
070 H010100 N
070 H020100 N
070 I010100 N
070 I020100 N
<PAGE>      PAGE  12
070 J010100 N
070 J020100 N
070 K010100 N
070 K020100 N
070 L010100 N
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 Y
070 N020100 N
070 O010100 Y
070 O020100 N
070 P010100 N
070 P020100 N
070 Q010100 N
070 Q020100 N
070 R010100 N
070 R020100 N
071 A000100         0
071 B000100         0
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072 A000100  6
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<PAGE>      PAGE  13
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074 K000100        0
074 L000100     2929
074 M000100        6
074 N000100   232784
074 O000100     7000
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028 A010200         0
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<PAGE>      PAGE  14
028 C030200         0
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055 A000200 N
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<PAGE>      PAGE  15
062 R000200   0.0
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070 A010200 Y
070 A020200 N
070 B010200 N
070 B020200 N
070 C010200 N
070 C020200 N
070 D010200 N
070 D020200 N
070 E010200 N
070 E020200 N
070 F010200 N
070 F020200 N
070 G010200 N
070 G020200 N
070 H010200 N
070 H020200 N
070 I010200 N
070 I020200 N
070 J010200 N
070 J020200 N
070 K010200 N
070 K020200 N
070 L010200 N
070 L020200 N
070 M010200 N
070 M020200 N
070 N010200 N
070 N020200 N
070 O010200 Y
070 O020200 N
070 P010200 N
070 P020200 N
070 Q010200 N
070 Q020200 N
070 R010200 N
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071 A000200         0
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<PAGE>      PAGE  16
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<PAGE>      PAGE  17
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<PAGE>      PAGE  18
055 A000300 N
055 B000300 N
056  000300 Y
057  000300 N
062 A000300 Y
062 B000300   0.0
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062 D000300   0.0
062 E000300   0.0
062 F000300   0.0
062 G000300   0.0
062 H000300   0.0
062 I000300   0.0
062 J000300   0.0
062 K000300   0.0
062 L000300   0.0
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062 N000300   0.0
062 O000300   0.0
062 P000300   0.0
062 Q000300   0.0
062 R000300   0.0
063 A000300   0
063 B000300  0.0
070 A010300 Y
070 A020300 N
070 B010300 N
070 B020300 N
070 C010300 N
070 C020300 N
070 D010300 N
070 D020300 N
070 E010300 N
070 E020300 N
070 F010300 N
070 F020300 N
070 G010300 N
070 G020300 N
070 H010300 N
070 H020300 N
070 I010300 N
070 I020300 N
070 J010300 N
070 J020300 N
070 K010300 N
070 K020300 N
070 L010300 N
070 L020300 N
070 M010300 N
070 M020300 N
070 N010300 N
<PAGE>      PAGE  19
070 N020300 N
070 O010300 Y
070 O020300 N
070 P010300 N
070 P020300 N
070 Q010300 N
070 Q020300 N
070 R010300 N
070 R020300 N
071 A000300         0
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071 C000300         0
071 D000300    0
072 A000300  6
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072 D000300        0
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072 F000300        0
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072 I000300        0
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072 K000300        0
072 L000300        0
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072 N000300        0
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072 S000300        0
072 T000300        0
072 U000300        0
072 V000300        0
072 W000300        0
072 X000300        0
072 Y000300        0
072 Z000300        0
072AA000300        0
072BB000300        0
072CC010300        0
072CC020300        0
072DD010300        0
072DD020300        0
072EE000300        0
073 A010300   0.0000
073 A020300   0.0000
073 B000300   0.0000
073 C000300   0.0000
074 A000300        0
<PAGE>      PAGE  20
074 B000300        0
074 C000300        0
074 D000300        0
074 E000300        0
074 F000300        0
074 G000300        0
074 H000300        0
074 I000300        0
074 J000300        0
074 K000300        0
074 L000300        0
074 M000300        0
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074 Q000300        0
074 R010300        0
074 R020300        0
074 R030300        0
074 R040300        0
074 S000300        0
074 T000300        0
074 U010300        0
074 U020300        0
074 V010300     0.00
074 V020300     0.00
074 W000300   0.0000
074 X000300        0
074 Y000300        0
075 A000300        0
075 B000300        0
076  000300     0.00
SIGNATURE   ROBERT P. NAULT                              
TITLE       ASST. SECRETARY     
 


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