EATON VANCE MUTUAL FUNDS TRUST
NSAR-B, 1998-02-26
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<PAGE>      PAGE  1
000 B000000 12/31/97
000 C000000 745463
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 EATON VANCE MUTUAL FUNDS TRUST
001 B000000 811-4015
001 C000000 6174828260
002 A000000 24 FEDERAL ST.
002 B000000 BOSTON
002 C000000 MA
002 D010000 02110
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000 12
007 C010100  1
007 C020100 EV TRADIONAL GOVERNMENT OBLIGATIONS FUND
007 C030100 N
007 C010200  2
007 C020200 EV MARATHON GOVERNMENT OBLIGATIONS FUND
007 C030200 N
007 C010300  3
007 C020300 EV CLASSIC GOVERNMENT OBLIGATIONS FUND
007 C030300 N
007 C010400  4
007 C020400 EATON VANCE SHORT TERM TREASURY FUND
007 C030400 N
007 C010500  5
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C020900 EATON VANCE TAX FREE RESERVES
007 C030900 N
007 C011000 10
007 C021000 EATON VANCE CASH MANAGEMENT FUND
007 C031000 N
007 C011100 11
007 C021100 EATON VANCE LIQUID ASSETS FUND
007 C031100 N
007 C011200 12
007 C021200 EATON VANCE MONEY MARKET FUND
007 C031200 N
007 C011300 13
<PAGE>      PAGE  2
007 C011400 14
007 C011500 15
007 C011600 16
007 C011700 17
007 C011800 18
007 C011900 19
007 C012000 20
007 C012100 21
007 C012200 22
007 C012300 23
007 C012400 24
007 C012500 25
007 C012600 26
007 C012700 27
007 C012800 28
007 C012900 29
007 C013000 30
011 A00AA01 EATON VANCE DISTRIBUTORS, INC.
011 B00AA01 8-24081
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02110
012 A00AA01 FIRST DATA INVESTORS SERVICES GROUP
012 B00AA01 85-401761
012 C01AA01 BOSTON
012 C02AA01 MA
012 C03AA01 02110
013 A00AA01 COOPERS & LYBRAND
013 B01AA01 BOSTON
013 B02AA01 MA
013 B03AA01 02109
014 A00AA01 EATON VANCE DISTRIBUTORS, INC.
014 B00AA01 8-24081
015 A00AA01 INVESTORS BANK & TRUST
015 B00AA01 C
015 C01AA01 BOSTON
015 C02AA01 MA
015 C03AA01 02110
015 E01AA01 X
018  00AA00 Y
019 A00AA00 Y
019 B00AA00  156
019 C00AA00 EATONVANCE
020 C000001      0
020 C000002      0
020 C000003      0
020 C000004      0
020 C000005      0
020 C000006      0
020 C000007      0
020 C000008      0
<PAGE>      PAGE  3
020 C000009      0
020 C000010      0
021  000000        0
022 A000001 HSBC SECURITIES INC.
022 C000001    626418
022 D000001    496014
022 A000002 FIRST BOSTON
022 C000002    291828
022 D000002    542195
022 A000003 GX CLARKE & CO.
022 C000003    384369
022 D000003    307208
022 A000004 FUJI SECURITIES
022 C000004     55133
022 D000004    369454
022 A000005 SALOMON BROTHERS INC.
022 C000005    278853
022 D000005     51127
022 A000006 GOLDMAN SACHS & CO.
022 C000006    247996
022 D000006     34545
022 A000007 CITICORP FINANCIAL SERVICES
022 C000007     13805
022 D000007    113924
022 A000008 LEHMAN GOVERNMENT SECURITIES
022 C000008     69727
022 D000008         0
022 A000009 JP MORGAN SECURITIES INC.
022 C000009     36101
022 D000009     32000
022 A000010 SPEAR LEEDS & KELLOGG
022 C000010     32244
022 D000010     26870
023 C000000    2036474
023 D000000    1973337
024  00AA00 N
026 A000000 Y
026 B000000 Y
026 C000000 Y
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 Y
037  00AA00 N
038  00AA00      0
039  00AA00 N
040  00AA00 Y
041  00AA00 Y
<PAGE>      PAGE  4
066 A00AA00 N
067  00AA00 N
068 A00AA00 N
068 B00AA00 N
069  00AA00 N
077 A000000 Y
077 B000000 Y
078  000000 N
080 A00AA00 FEDERAL INSURANCE CO.
080 C00AA00    45000
081 A00AA00 Y
081 B00AA00 186
082 A00AA00 Y
082 B00AA00      100
083 A00AA00 N
083 B00AA00        0
084 A00AA00 N
084 B00AA00        0
085 A00AA00 Y
085 B00AA00 N
086 A010000      0
086 A020000      0
086 B010000      0
086 B020000      0
086 C010000      0
086 C020000      0
086 D010000      0
086 D020000      0
086 E010000      0
086 E020000      0
086 F010000      0
086 F020000      0
086 A01AA00      0
086 A02AA00      0
086 B01AA00      0
086 B02AA00      0
086 C01AA00      0
086 C02AA00      0
086 D01AA00      0
086 D02AA00      0
086 E01AA00      0
086 E02AA00      0
086 F01AA00      0
086 F02AA00      0
010 A000101 EATON VANCE MANAGEMENT
010 B000101 801-15930
010 C010101 BOSTON
010 C020101 MA
010 C030101 02110
025 D000101       0
025 D000102       0
<PAGE>      PAGE  5
025 D000103       0
025 D000104       0
025 D000105       0
025 D000106       0
025 D000107       0
025 D000108       0
028 A010100     26533
028 A020100       818
028 A030100         0
028 A040100     18592
028 B010100      5219
028 B020100       867
028 B030100         0
028 B040100     11816
028 C010100      4426
028 C020100       833
028 C030100         0
028 C040100      9446
028 D010100      1349
028 D020100       803
028 D030100         0
028 D040100      4227
028 E010100      1760
028 E020100       853
028 E030100         0
028 E040100      5018
028 F010100      2461
028 F020100       724
028 F030100         0
028 F040100      7280
028 G010100     41748
028 G020100      4898
028 G030100         0
028 G040100     56379
028 H000100     14559
029  000100 Y
030 A000100  28610
030 B000100  5.00
030 C000100  1.00
031 A000100      0
031 B000100      0
032  000100  28610
033  000100      0
034  000100 N
035  000100      0
036 B000100      0
042 A000100   0
042 B000100   0
042 C000100   0
042 D000100   0
042 E000100   0
<PAGE>      PAGE  6
042 F000100   0
042 G000100   0
042 H000100   0
043  000100      0
044  000100      0
045  000100 N
048  000100  0.000
048 A010100        0
048 A020100 0.000
048 B010100        0
048 B020100 0.000
048 C010100        0
048 C020100 0.000
048 D010100        0
048 D020100 0.000
048 E010100        0
048 E020100 0.000
048 F010100        0
048 F020100 0.000
048 G010100        0
048 G020100 0.000
048 H010100        0
048 H020100 0.000
048 I010100        0
048 I020100 0.000
048 J010100        0
048 J020100 0.000
048 K010100        0
048 K020100 0.000
055 A000100 N
055 B000100 N
056  000100 Y
057  000100 N
058 A000100 N
059  000100 Y
060 A000100 N
060 B000100 N
061  000100     1000
062 A000100 N
062 B000100   0.0
062 C000100   0.0
062 D000100   0.0
062 E000100   0.0
062 F000100   0.0
062 G000100   0.0
062 H000100   0.0
062 I000100   0.0
062 J000100   0.0
062 K000100   0.0
062 L000100   0.0
062 M000100   0.0
<PAGE>      PAGE  7
062 N000100   0.0
062 O000100   0.0
062 P000100   0.0
062 Q000100   0.0
062 R000100   0.0
063 A000100   0
063 B000100  0.0
070 A010100 N
070 A020100 N
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
070 J010100 N
070 J020100 N
070 K010100 Y
070 K020100 Y
070 L010100 N
070 L020100 N
070 M010100 N
070 M020100 N
070 N010100 N
070 N020100 N
070 O010100 N
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
071 C000100         0
071 D000100    0
072 A000100 12
072 B000100        0
072 C000100        0
072 D000100        0
<PAGE>      PAGE  8
072 E000100    23151
072 F000100        0
072 G000100        0
072 H000100        0
072 I000100      302
072 J000100       26
072 K000100        0
072 L000100       52
072 M000100        3
072 N000100       20
072 O000100        0
072 P000100        0
072 Q000100        0
072 R000100       14
072 S000100        3
072 T000100      717
072 U000100        0
072 V000100        0
072 W000100       40
072 X000100     1177
072 Y000100        0
072 Z000100    21974
072AA000100        0
072BB000100     4428
072CC010100     2764
072CC020100        0
072DD010100    22120
072DD020100        0
072EE000100        0
073 A010100   0.8080
073 A020100   0.0000
073 B000100   0.0000
073 C000100   0.0000
074 A000100        0
074 B000100        0
074 C000100        0
074 D000100        0
074 E000100        0
074 F000100        0
074 G000100        0
074 H000100        0
074 I000100   278014
074 J000100      162
074 K000100        0
074 L000100        0
074 M000100        0
074 N000100   278176
074 O000100        0
074 P000100        0
074 Q000100        0
074 R010100        0
<PAGE>      PAGE  9
074 R020100        0
074 R030100        0
074 R040100     1395
074 S000100        0
074 T000100   276781
074 U010100    26073
074 U020100        0
074 V010100    10.62
074 V020100     0.00
074 W000100   0.0000
074 X000100     8390
074 Y000100        0
075 A000100        0
075 B000100   290151
076  000100     0.00
010 A000201 EATON VANCE MANAGEMENT
010 B000201 801-15930
010 C010201 BOSTON
010 C020201 MA
010 C030201 02110
025 D000201       0
025 D000202       0
025 D000203       0
025 D000204       0
025 D000205       0
025 D000206       0
025 D000207       0
025 D000208       0
028 A010200      4923
028 A020200       260
028 A030200         0
028 A040200      6109
028 B010200      7936
028 B020200       279
028 B030200         0
028 B040200      4619
028 C010200      4814
028 C020200       286
028 C030200         0
028 C040200      1743
028 D010200      2833
028 D020200       276
028 D030200         0
028 D040200      2360
028 E010200      6609
028 E020200       291
028 E030200         0
028 E040200      6392
028 F010200      6145
028 F020200       247
028 F030200         0
<PAGE>      PAGE  10
028 F040200     10201
028 G010200     33260
028 G020200      1639
028 G030200         0
028 G040200     31424
028 H000200         0
029  000200 N
030 A000200      0
030 B000200  0.00
030 C000200  0.00
031 A000200      0
031 B000200      0
032  000200      0
033  000200      0
034  000200 Y
035  000200    467
036 A000200 N
036 B000200      0
042 A000200   0
042 B000200   0
042 C000200   0
042 D000200   0
042 E000200   0
042 F000200   0
042 G000200   0
042 H000200   0
043  000200      0
044  000200      0
045  000200 N
048  000200  0.000
048 A010200        0
048 A020200 0.000
048 B010200        0
048 B020200 0.000
048 C010200        0
048 C020200 0.000
048 D010200        0
048 D020200 0.000
048 E010200        0
048 E020200 0.000
048 F010200        0
048 F020200 0.000
048 G010200        0
048 G020200 0.000
048 H010200        0
048 H020200 0.000
048 I010200        0
048 I020200 0.000
048 J010200        0
048 J020200 0.000
048 K010200        0
<PAGE>      PAGE  11
048 K020200 0.000
055 A000200 N
055 B000200 N
056  000200 Y
057  000200 N
058 A000200 N
059  000200 Y
060 A000200 N
060 B000200 N
061  000200     1000
062 A000200 N
062 B000200   0.0
062 C000200   0.0
062 D000200   0.0
062 E000200   0.0
062 F000200   0.0
062 G000200   0.0
062 H000200   0.0
062 I000200   0.0
062 J000200   0.0
062 K000200   0.0
062 L000200   0.0
062 M000200   0.0
062 N000200   0.0
062 O000200   0.0
062 P000200   0.0
062 Q000200   0.0
062 R000200   0.0
063 A000200   0
063 B000200  0.0
070 A010200 N
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 Y
<PAGE>      PAGE  12
070 K020200 Y
070 L010200 N
070 L020200 N
070 M010200 N
070 M020200 N
070 N010200 N
070 N020200 N
070 O010200 N
070 O020200 N
070 P010200 N
070 P020200 N
070 Q010200 N
070 Q020200 N
070 R010200 N
070 R020200 N
071 A000200         0
071 B000200         0
071 C000200         0
071 D000200    0
072 A000200 12
072 B000200        0
072 C000200        0
072 D000200        0
072 E000200     9386
072 F000200        0
072 G000200        0
072 H000200        0
072 I000200      115
072 J000200       15
072 K000200        0
072 L000200       29
072 M000200        3
072 N000200       20
072 O000200        0
072 P000200        0
072 Q000200        0
072 R000200       14
072 S000200        2
072 T000200     1128
072 U000200        5
072 V000200        0
072 W000200       10
072 X000200     1341
072 Y000200        0
072 Z000200     8045
072AA000200        0
072BB000200     1805
072CC010200     1212
072CC020200        0
072DD010200     8197
072DD020200        0
<PAGE>      PAGE  13
072EE000200        0
073 A010200   0.6360
073 A020200   0.0000
073 B000200   0.0000
073 C000200   0.0000
074 A000200        0
074 B000200        0
074 C000200        0
074 D000200        0
074 E000200        0
074 F000200        0
074 G000200        0
074 H000200        0
074 I000200   118431
074 J000200     4017
074 K000200        0
074 L000200        0
074 M000200        4
074 N000200   122452
074 O000200        0
074 P000200        0
074 Q000200        0
074 R010200        0
074 R020200        0
074 R030200        0
074 R040200      609
074 S000200        0
074 T000200   121843
074 U010200    13336
074 U020200        0
074 V010200     9.14
074 V020200     0.00
074 W000200   0.0000
074 X000200     3341
074 Y000200        0
075 A000200        0
075 B000200   117735
076  000200     0.00
010 A000301 EATON VANCE MANAGEMENT
010 B000301 801-15930
010 C010301 BOSTON
010 C020301 MA
010 C030301 02110
028 A010300       755
028 A020300        98
028 A030300         0
028 A040300      1025
028 B010300      1246
028 B020300       107
028 B030300         0
028 B040300       584
<PAGE>      PAGE  14
028 C010300      5640
028 C020300       106
028 C030300         0
028 C040300       512
028 D010300      2366
028 D020300       102
028 D030300         0
028 D040300       516
028 E010300       190
028 E020300       123
028 E030300         0
028 E040300       300
028 F010300       329
028 F020300       102
028 F030300         0
028 F040300       649
028 G010300     10526
028 G020300       638
028 G030300         0
028 G040300      3586
028 H000300         0
029  000300 N
030 A000300      0
030 B000300  0.00
030 C000300  0.00
031 A000300      0
031 B000300      0
032  000300      0
033  000300      0
034  000300 Y
035  000300     11
036 A000300 N
036 B000300      0
045  000300 N
048  000300  0.000
048 A010300        0
048 A020300 0.000
048 B010300        0
048 B020300 0.000
048 C010300        0
048 C020300 0.000
048 D010300        0
048 D020300 0.000
048 E010300        0
048 E020300 0.000
048 F010300        0
048 F020300 0.000
048 G010300        0
048 G020300 0.000
048 H010300        0
048 H020300 0.000
<PAGE>      PAGE  15
048 I010300        0
048 I020300 0.000
048 J010300        0
048 J020300 0.000
048 K010300        0
048 K020300 0.000
055 A000300 N
055 B000300 N
056  000300 Y
057  000300 N
058 A000300 N
059  000300 Y
060 A000300 N
060 B000300 N
061  000300     1000
062 A000300 N
062 B000300   0.0
062 C000300   0.0
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
062 M000300   0.0
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 N
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
<PAGE>      PAGE  16
070 I010300 N
070 I020300 N
070 J010300 N
070 J020300 N
070 K010300 Y
070 K020300 Y
070 L010300 N
070 L020300 N
070 M010300 N
070 M020300 N
070 N010300 N
070 N020300 N
070 O010300 N
070 O020300 N
070 P010300 N
070 P020300 N
070 Q010300 N
070 Q020300 N
071 A000300         0
071 B000300         0
071 C000300         0
071 D000300    0
072 A000300 12
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072 D000300        0
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072 I000300       55
072 J000300        6
072 K000300        0
072 L000300       28
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072 S000300        1
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072 U000300        5
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072 X000300      447
072 Y000300        0
072 Z000300     2041
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072CC010300      440
<PAGE>      PAGE  17
072CC020300        0
072DD010300     2095
072DD020300        0
072EE000300        0
073 A010300   0.6130
073 A020300   0.0000
073 B000300   0.0000
073 C000300   0.0000
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074 J000300       28
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074 M000300        4
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074 O000300        0
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074 R040300      158
074 S000300        0
074 T000300    36536
074 U010300     4000
074 U020300        0
074 V010300     9.13
074 V020300     0.00
074 W000300   0.0000
074 X000300     3227
074 Y000300        0
075 A000300        0
075 B000300    31285
076  000300     0.00
008 A000401 EATON VANCE MANAGEMENT
008 B000401 A
008 C000401 801-15930
008 D010401 BOSTON
008 D020401 MA
008 D030401 02110
028 A010400    133387
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028 A030400         0
028 A040400      1591
<PAGE>      PAGE  18
028 B010400     71318
028 B020400         0
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028 B040400     32401
028 C010400      5688
028 C020400         0
028 C030400         0
028 C040400     55023
028 D010400    253212
028 D020400         0
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028 D040400     22562
028 E010400      4728
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028 E040400      8357
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028 F040400    476739
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028 G040400    596673
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030 A000400      0
030 B000400  0.00
030 C000400  0.00
031 A000400      0
031 B000400      0
032  000400      0
033  000400      0
035  000400      0
036 B000400      0
045  000400 Y
046  000400 N
047  000400 N
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048 B010400        0
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<PAGE>      PAGE  19
048 G020400 0.000
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048 K020400 0.000
049  000400 N
050  000400 Y
051  000400 N
052  000400 N
053 A000400 Y
053 B000400 Y
053 C000400 Y
054 A000400 Y
054 B000400 Y
054 C000400 N
054 D000400 N
054 E000400 N
054 F000400 N
054 G000400 Y
054 H000400 Y
054 I000400 N
054 J000400 Y
054 K000400 N
054 L000400 N
054 M000400 Y
054 N000400 N
054 O000400 N
055 A000400 N
055 B000400 N
056  000400 Y
057  000400 N
058 A000400 N
059  000400 Y
060 A000400 N
060 B000400 N
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062 A000400 Y
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062 D000400   0.0
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<PAGE>      PAGE  20
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062 O000400   0.0
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062 R000400   0.0
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063 B000400  0.0
064 A000400 N
064 B000400 N
070 A010400 Y
070 A020400 N
070 B010400 N
070 B020400 N
070 C010400 Y
070 C020400 N
070 D010400 N
070 D020400 N
070 E010400 N
070 E020400 N
070 F010400 N
070 F020400 N
070 G010400 N
070 G020400 N
070 H010400 N
070 H020400 N
070 I010400 N
070 I020400 N
070 J010400 Y
070 J020400 N
070 K010400 N
070 K020400 N
070 L010400 N
070 L020400 N
070 M010400 N
070 M020400 N
070 N010400 Y
070 N020400 N
070 O010400 Y
070 O020400 N
070 P010400 N
070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 Y
070 R020400 N
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<PAGE>      PAGE  21
072 A000400 12
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072CC010400        0
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072EE000400        0
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074 D000400        0
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074 K000400        0
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<PAGE>      PAGE  22
074 O000400        0
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074 R010400        0
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074 S000400        0
074 T000400     2948
074 U010400       45
074 U020400        0
074 V010400    64.88
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075 A000400        0
075 B000400   216824
076  000400     0.00
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028 A020900       115
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028 B020900       112
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<PAGE>      PAGE  23
031 A000900      0
031 B000900      0
032  000900      0
033  000900      0
035  000900      0
036 B000900      0
045  000900 Y
046  000900 N
047  000900 N
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048 I020900 0.000
048 J010900        0
048 J020900 0.000
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048 K020900 0.000
049  000900 N
050  000900 Y
051  000900 N
052  000900 N
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054 A000900 Y
054 B000900 Y
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054 D000900 N
054 E000900 N
054 F000900 N
054 G000900 Y
054 H000900 Y
054 I000900 N
054 J000900 Y
054 K000900 N
054 L000900 N
<PAGE>      PAGE  24
054 M000900 Y
054 N000900 N
054 O000900 N
055 A000900 N
055 B000900 Y
056  000900 Y
057  000900 N
058 A000900 N
059  000900 Y
060 A000900 N
060 B000900 N
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062 F000900   0.0
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062 H000900   0.0
062 I000900   0.0
062 J000900   0.0
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062 L000900   0.0
062 M000900   0.0
062 N000900   0.0
062 O000900   0.0
062 P000900   0.0
062 Q000900  -0.1
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063 B000900  0.0
064 A000900 N
064 B000900 N
070 A010900 Y
070 A020900 N
070 B010900 N
070 B020900 N
070 C010900 N
070 C020900 N
070 D010900 N
070 D020900 N
070 E010900 N
070 E020900 N
070 F010900 N
070 F020900 N
070 G010900 N
070 G020900 N
070 H010900 N
070 H020900 N
070 I010900 N
<PAGE>      PAGE  25
070 I020900 N
070 J010900 N
070 J020900 N
070 K010900 Y
070 K020900 N
070 L010900 N
070 L020900 N
070 M010900 N
070 M020900 N
070 N010900 Y
070 N020900 N
070 O010900 N
070 O020900 N
070 P010900 Y
070 P020900 Y
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070 Q020900 N
070 R010900 Y
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071 A000900         0
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072 B000900     2306
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072 S000900        6
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072 W000900        8
072 X000900      442
072 Y000900      141
072 Z000900     2005
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072BB000900        1
<PAGE>      PAGE  26
072CC010900        0
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072DD010900        0
072DD020900        0
072EE000900        0
073 A010900   0.0312
073 A020900   0.0000
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074 C000900        0
074 D000900        0
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074 J000900      199
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074 N000900    34522
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074 R010900        0
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074 S000900        0
074 T000900    33959
074 U010900    33978
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074 Y000900        0
075 A000900    64262
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028 A011000         0
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<PAGE>      PAGE  27
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030 A001000      0
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045  001000 N
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055 A001000 N
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057  001000 N
<PAGE>      PAGE  28
058 A001000 N
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060 A001000 N
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070 A011000 Y
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070 D021000 N
070 E011000 N
070 E021000 N
070 F011000 N
070 F021000 N
070 G011000 N
070 G021000 N
070 H011000 N
070 H021000 N
070 I011000 N
070 I021000 N
070 J011000 N
070 J021000 N
070 K011000 Y
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070 M011000 N
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<PAGE>      PAGE  29
070 O011000 Y
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<PAGE>      PAGE  30
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<PAGE>      PAGE  31
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<PAGE>      PAGE  32
062 A001100 N
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<PAGE>      PAGE  33
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<PAGE>      PAGE  34
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<PAGE>      PAGE  35
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<PAGE>      PAGE  36
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<PAGE>      PAGE  37
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<PAGE>      PAGE  38
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074 M001200       16
074 N001200    23931
074 O001200        0
074 P001200        0
074 Q001200        0
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074 S001200        0
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074 W001200   1.0000
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074 Y001200        0
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076  001200     0.00
030 A001700      0
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<PAGE>      PAGE  39
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SIGNATURE   M. KATHERINE KREIDER                         
TITLE       ASST. TREASURER     
 


<TABLE> <S> <C>

<ARTICLE>         6
<CIK> 0000745463
<NAME> EATON VANCE MUTUAL FUNDS TRUST
<SERIES>
   <NUMBER> 1
   <NAME> EV Traditional Government Obligations Fund
<MULTIPLIER> 1000
       
<S>                               <C>
<PERIOD-TYPE>                    12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                                   DEC-31-1997
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<INVESTMENTS-AT-VALUE>                   278,014
<RECEIVABLES>                                162
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<ACCUMULATED-NET-GAINS>                  (55,341)
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<NET-ASSETS>                             276,781
<DIVIDEND-INCOME>                              0
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<OTHER-INCOME>                            23,151
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<NET-INVESTMENT-INCOME>                   21,974
<REALIZED-GAINS-CURRENT>                  (4,427)
<APPREC-INCREASE-CURRENT>                  2,763
<NET-CHANGE-FROM-OPS>                     20,310
<EQUALIZATION>                                 0
<DISTRIBUTIONS-OF-INCOME>                (21,945)
<DISTRIBUTIONS-OF-GAINS>                       0
<DISTRIBUTIONS-OTHER>                       (174)
<NUMBER-OF-SHARES-SOLD>                    8,050
<NUMBER-OF-SHARES-REDEEMED>              (11,298)
<SHARES-REINVESTED>                          941
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<GROSS-EXPENSE>                            1,177
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<AVG-DEBT-PER-SHARE>                           0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE>          6
<CIK> 0000745463
<NAME> EATON VANCE MUTUAL FUNDS TRUST
<SERIES>
   <NUMBER> 2
   <NAME> EV Marathon Government Obligations Fund
<MULTIPLIER> 1000
       
<S>                               <C>
<PERIOD-TYPE>                    12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                                   DEC-31-1997
<INVESTMENTS-AT-COST>                    116,337
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<SENIOR-LONG-TERM-DEBT>                        0
<OTHER-ITEMS-LIABILITIES>                    609
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<SENIOR-EQUITY>                                0
<PAID-IN-CAPITAL-COMMON>                 126,799
<SHARES-COMMON-STOCK>                     13,336
<SHARES-COMMON-PRIOR>                     13,095
<ACCUMULATED-NII-CURRENT>                   (353)
<OVERDISTRIBUTION-NII>                         0
<ACCUMULATED-NET-GAINS>                   (6,696)
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<OTHER-INCOME>                             9,385
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<PER-SHARE-NAV-BEGIN>                      9.190
<PER-SHARE-NII>                            0.625
<PER-SHARE-GAIN-APPREC>                   (0.039)
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<AVG-DEBT-PER-SHARE>                           0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE>          6
<CIK> 0000745463
<NAME> EATON VANCE MUTUAL FUNDS TRUST
<SERIES>
   <NUMBER> 3
   <NAME> EV Classic Government Obligations Fund
<MULTIPLIER> 1000
       
<S>                               <C>
<PERIOD-TYPE>                    12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                                   DEC-31-1997
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<SHARES-COMMON-STOCK>                      4,000
<SHARES-COMMON-PRIOR>                      3,281
<ACCUMULATED-NII-CURRENT>                    (62)
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<ACCUMULATED-NET-GAINS>                   (3,054)
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<DIVIDEND-INCOME>                              0
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<EXPENSES-NET>                               447
<NET-INVESTMENT-INCOME>                    2,041
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<GROSS-EXPENSE>                              447
<AVERAGE-NET-ASSETS>                      31,284
<PER-SHARE-NAV-BEGIN>                      9.190
<PER-SHARE-NII>                            0.602
<PER-SHARE-GAIN-APPREC>                   (0.049)
<PER-SHARE-DIVIDEND>                      (0.604)
<PER-SHARE-DISTRIBUTIONS>                  0.000
<RETURNS-OF-CAPITAL>                      (0.009)
<PER-SHARE-NAV-END>                        9.130
<EXPENSE-RATIO>                             2.26
<AVG-DEBT-OUTSTANDING>                         0
<AVG-DEBT-PER-SHARE>                           0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE>          6
<CIK> 0000745463
<NAME> EATON VANCE MUTUAL FUNDS TRUST
<SERIES>
   <NUMBER> 4
   <NAME> Eaton Vance Short-Term Treasury Fund
<MULTIPLIER> 1000
       
<S>                               <C>
<PERIOD-TYPE>                    12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                                   DEC-31-1997
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<RECEIVABLES>                                 50
<ASSETS-OTHER>                               471
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<SENIOR-EQUITY>                                0
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<SHARES-COMMON-STOCK>                         45
<SHARES-COMMON-PRIOR>                    (22,205)
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<DIVIDEND-INCOME>                              0
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<EQUALIZATION>                                 0
<DISTRIBUTIONS-OF-INCOME>                    (50)
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<NUMBER-OF-SHARES-SOLD>                   11,131
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<NET-CHANGE-IN-ASSETS>                    (9,510)
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<GROSS-EXPENSE>                            1,501
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<PER-SHARE-NAV-BEGIN>                     62.890
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<RETURNS-OF-CAPITAL>                       0.000
<PER-SHARE-NAV-END>                       64.880
<EXPENSE-RATIO>                             0.60
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<AVG-DEBT-PER-SHARE>                           0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE>          6
<CIK> 0000745463
<NAME> EATON VANCE MUTUAL FUNDS TRUST
<SERIES>
   <NUMBER> 9
   <NAME> Eaton Vance Tax Free Reservers
<MULTIPLIER> 1000
       
<S>                               <C>
<PERIOD-TYPE>                    12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                                   DEC-31-1997
<INVESTMENTS-AT-COST>                     33,989
<INVESTMENTS-AT-VALUE>                    33,989
<RECEIVABLES>                                506
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<OTHER-ITEMS-ASSETS>                          28
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<OTHER-ITEMS-LIABILITIES>                    563
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<SENIOR-EQUITY>                                0
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<SHARES-COMMON-PRIOR>                     23,371
<ACCUMULATED-NII-CURRENT>                      0
<OVERDISTRIBUTION-NII>                         0
<ACCUMULATED-NET-GAINS>                      (18)
<OVERDISTRIBUTION-GAINS>                       0
<ACCUM-APPREC-OR-DEPREC>                       0
<NET-ASSETS>                              33,960
<DIVIDEND-INCOME>                              0
<INTEREST-INCOME>                          2,306
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<EXPENSES-NET>                               301
<NET-INVESTMENT-INCOME>                    2,005
<REALIZED-GAINS-CURRENT>                      (2)
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<EQUALIZATION>                                 0
<DISTRIBUTIONS-OF-INCOME>                 (2,005)
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<NUMBER-OF-SHARES-SOLD>                  181,218
<NUMBER-OF-SHARES-REDEEMED>             (171,789)
<SHARES-REINVESTED>                        1,178
<NET-CHANGE-IN-ASSETS>                    10,605
<ACCUMULATED-NII-PRIOR>                        0
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<INTEREST-EXPENSE>                             0
<GROSS-EXPENSE>                              442
<AVERAGE-NET-ASSETS>                      64,261
<PER-SHARE-NAV-BEGIN>                      1.000
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<PER-SHARE-DIVIDEND>                      (0.312)
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</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE>          6
1468
<NAME> EATON VANCE MUTUAL FUNDS TRUST
<SERIES>
   <NUMBER> 10
   <NAME> Eaton Vance Cash Management Fund
<MULTIPLIER> 1000
       
<S>                               <C>
<PERIOD-TYPE>                    12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                                   DEC-31-1997
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<SHARES-COMMON-STOCK>                    146,743
<SHARES-COMMON-PRIOR>                    151,691
<ACCUMULATED-NII-CURRENT>                      0
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<OVERDISTRIBUTION-GAINS>                       0
<ACCUM-APPREC-OR-DEPREC>                       0
<NET-ASSETS>                             146,743
<DIVIDEND-INCOME>                              0
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<OTHER-INCOME>                             5,002
<EXPENSES-NET>                               185
<NET-INVESTMENT-INCOME>                    4,817
<REALIZED-GAINS-CURRENT>                       0
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<EQUALIZATION>                                 0
<DISTRIBUTIONS-OF-INCOME>                 (4,817)
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<NUMBER-OF-SHARES-SOLD>                  553,471
<NUMBER-OF-SHARES-REDEEMED>             (561,345)
<SHARES-REINVESTED>                        2,926
<NET-CHANGE-IN-ASSETS>                    (4,948)
<ACCUMULATED-NII-PRIOR>                        0
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<OVERDISTRIB-NII-PRIOR>                        0
<OVERDIST-NET-GAINS-PRIOR>                     0
<GROSS-ADVISORY-FEES>                          0
<INTEREST-EXPENSE>                             0
<GROSS-EXPENSE>                              185
<AVERAGE-NET-ASSETS>                     100,642
<PER-SHARE-NAV-BEGIN>                      1.000
<PER-SHARE-NII>                            0.048
<PER-SHARE-GAIN-APPREC>                    0.000
<PER-SHARE-DIVIDEND>                      (0.048)
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<RETURNS-OF-CAPITAL>                       0.000
<PER-SHARE-NAV-END>                        1.000
<EXPENSE-RATIO>                             0.78
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<AVG-DEBT-PER-SHARE>                           0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE>          6
<CIK> 0000745463
<NAME> EATON VANCE MUTUAL FUNDS TRUST
<SERIES>
   <NUMBER> 11
   <NAME> Eaton Vance Liquid Assets Fund
<MULTIPLIER> 1000
       
<S>                               <C>
<PERIOD-TYPE>                    12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                                   DEC-31-1997
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<INVESTMENTS-AT-VALUE>                    13,148
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<ASSETS-OTHER>                                 0
<OTHER-ITEMS-ASSETS>                           0
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<SENIOR-EQUITY>                                0
<PAID-IN-CAPITAL-COMMON>                  13,000
<SHARES-COMMON-STOCK>                     13,000
<SHARES-COMMON-PRIOR>                     19,910
<ACCUMULATED-NII-CURRENT>                      0
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<ACCUMULATED-NET-GAINS>                        0
<OVERDISTRIBUTION-GAINS>                       0
<ACCUM-APPREC-OR-DEPREC>                       0
<NET-ASSETS>                              13,000
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<INTEREST-INCOME>                              0
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<EXPENSES-NET>                               122
<NET-INVESTMENT-INCOME>                      679
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<NUMBER-OF-SHARES-REDEEMED>               (7,442)
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<OVERDISTRIB-NII-PRIOR>                        0
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<GROSS-EXPENSE>                              122
<AVERAGE-NET-ASSETS>                      16,154
<PER-SHARE-NAV-BEGIN>                      1.000
<PER-SHARE-NII>                           (0.047)
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<RETURNS-OF-CAPITAL>                       0.000
<PER-SHARE-NAV-END>                        1.000
<EXPENSE-RATIO>                             0.74
<AVG-DEBT-OUTSTANDING>                         0
<AVG-DEBT-PER-SHARE>                           0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE>          6
<CIK> 0000745463
<NAME> EATON VANCE MUTUAL FUNDS TRUST
<SERIES>
   <NUMBER> 12
   <NAME> Eaton Vance Money Market Fund
<MULTIPLIER> 1000
       
<S>                               <C>
<PERIOD-TYPE>                    12-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-END>                                   DEC-31-1997
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<SHARES-COMMON-STOCK>                     23,808
<SHARES-COMMON-PRIOR>                     31,249
<ACCUMULATED-NII-CURRENT>                      0
<OVERDISTRIBUTION-NII>                         0
<ACCUMULATED-NET-GAINS>                        0
<OVERDISTRIBUTION-GAINS>                       0
<ACCUM-APPREC-OR-DEPREC>                       0
<NET-ASSETS>                              23,808
<DIVIDEND-INCOME>                              0
<INTEREST-INCOME>                              0
<OTHER-INCOME>                             1,382
<EXPENSES-NET>                               317
<NET-INVESTMENT-INCOME>                    1,065
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<APPREC-INCREASE-CURRENT>                      0
<NET-CHANGE-FROM-OPS>                      1,065
<EQUALIZATION>                                 0
<DISTRIBUTIONS-OF-INCOME>                 (1,065)
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<EXPENSE-RATIO>                             1.73
<AVG-DEBT-OUTSTANDING>                         0
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</TABLE>


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