MFS SERIES TRUST VI
NSAR-A, 1997-06-20
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<PAGE>      PAGE  1
000 A000000 04/30/97
000 C000000 0000863032
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 MFS SERIES TRUST VI
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001 C000000 6179545000
002 A000000 500 BOYLSTON STREET
002 B000000 BOSTON
002 C000000 MA
002 D010000 02116
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  3
007 C010100  1
007 C020100 MFS WORLD TOTAL RETURN FUND
007 C030100 N
007 C010200  2
007 C020200 MFS UTILITIES FUND
007 C030200 N
007 C010300  3
007 C020300 MFS WORLD EQUITY FUND
007 C030300 N
007 C010400  4
007 C010500  5
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
008 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
008 B00AA01 A
008 C00AA01 801-17352
008 D01AA01 BOSTON
008 D02AA01 MA
008 D03AA01 02116
010 A00AA01 MASSACHUSETTS FINANCIAL SERVICES COMPANY
010 B00AA01 801-17352
010 C01AA01 BOSTON
010 C02AA01 MA
010 C03AA01 02116
011 A00AA01 MFS FUND DISTRIBUTORS, INC.
011 B00AA01 8-27864
<PAGE>      PAGE  2
011 C01AA01 BOSTON
011 C02AA01 MA
011 C03AA01 02116
012 A00AA01 MFS SERVICE CENTER, INC.
012 B00AA01 84-1316
012 C01AA01 BOSTON
012 C02AA01 MA
012 C03AA01 02116
022 A000001 GE FINANCIAL
022 B000001 06-1109503
022 C000001    756237
022 D000001         0
022 A000002 FORD MOTOR CREDIT
022 B000002 38-1612444
022 C000002    160159
022 D000002         0
022 A000003 CS FIRST BOSTON
022 B000003 13-5659485
022 C000003    118632
022 D000003     10657
022 A000004 CARROLL MC ENTEE
022 B000004 00-0000000
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022 D000004     57027
022 A000005 PRUDENTIAL SECURITIES
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022 C000005     71722
022 D000005     10665
022 A000006 LEHMAN BROTHERS
022 B000006 13-2518466
022 C000006     61346
022 D000006     18453
022 A000007 MORGAN J.P. SECURITIES
022 B000007 13-3224016
022 C000007     68166
022 D000007     10136
022 A000008 GOLDMAN SACHS & CO
022 B000008 13-5108880
022 C000008     44566
022 D000008     22306
022 A000009 CHASE MANHATTAN
022 B000009 13-3112953
022 C000009     52044
022 D000009         0
022 A000010 NATIONS BANK
022 B000010 00-0000000
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<PAGE>      PAGE  3
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013 B010101 BOSTON
013 B020101 MA
013 B030101 02116
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<PAGE>      PAGE  4
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<PAGE>      PAGE  5
070 K020100 N
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070 L020100 Y
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
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<PAGE>      PAGE  8
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070 A010200 Y
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
074 V020200     9.04
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013 A000301 DELOITTE & TOUCHE LLP
013 B010301 BOSTON
013 B020301 MA
013 B030301 02110
013 B040301 1617
024  000300 N
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<PAGE>      PAGE  11
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<PAGE>      PAGE  12
076  000300     0.00
SIGNATURE   JAMES O. YOST                                
TITLE       ASSISTANT TREASURER 
 


<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
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   <NUMBER> 021
   <NAME> MFS UTILITIES FUND CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
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<TABLE> <S> <C>

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<CIK> 0000863032
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<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
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<PER-SHARE-DISTRIBUTIONS>                       (0.30)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.05
<EXPENSE-RATIO>                                   1.86
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
<SERIES>
   <NUMBER> 024
   <NAME> MFS UTILITIES FUND CLASS I
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1997
<PERIOD-START>                             NOV-01-1996
<PERIOD-END>                               APR-30-1997
<INVESTMENTS-AT-COST>                        132972608
<INVESTMENTS-AT-VALUE>                       143245609
<RECEIVABLES>                                  3538529
<ASSETS-OTHER>                                    5031
<OTHER-ITEMS-ASSETS>                           1392232
<TOTAL-ASSETS>                               148181401
<PAYABLE-FOR-SECURITIES>                       2246617
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                       350257
<TOTAL-LIABILITIES>                            2596874
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     125326355
<SHARES-COMMON-STOCK>                            72478
<SHARES-COMMON-PRIOR>                                0 
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                        (104645)
<ACCUMULATED-NET-GAINS>                       10090536
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      10272281
<NET-ASSETS>                                 145584527
<DIVIDEND-INCOME>                              2051332
<INTEREST-INCOME>                              1080965
<OTHER-INCOME>                                 (54631)
<EXPENSES-NET>                               (1003407)
<NET-INVESTMENT-INCOME>                        2074259
<REALIZED-GAINS-CURRENT>                      10402039
<APPREC-INCREASE-CURRENT>                       114512
<NET-CHANGE-FROM-OPS>                         12590810
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                      (11245)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         123465
<NUMBER-OF-SHARES-REDEEMED>                    (52212)
<SHARES-REINVESTED>                               1225
<NET-CHANGE-IN-ASSETS>                        27131974
<ACCUMULATED-NII-PRIOR>                         436026
<ACCUMULATED-GAINS-PRIOR>                     10275332
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           439703
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                1176677
<AVERAGE-NET-ASSETS>                         134384439
<PER-SHARE-NAV-BEGIN>                             8.90
<PER-SHARE-NII>                                   0.14
<PER-SHARE-GAIN-APPREC>                           0.15
<PER-SHARE-DIVIDEND>                            (0.12)
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                               9.07
<EXPENSE-RATIO>                                   0.87
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
<SERIES>
   <NUMBER> 031
   <NAME> MFS WORLD EQUITY FUND CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1997
<PERIOD-START>                             NOV-01-1996
<PERIOD-END>                               APR-30-1997
<INVESTMENTS-AT-COST>                        296102637
<INVESTMENTS-AT-VALUE>                       345840921
<RECEIVABLES>                                  7621283
<ASSETS-OTHER>                                    2676
<OTHER-ITEMS-ASSETS>                            120630
<TOTAL-ASSETS>                               353585510
<PAYABLE-FOR-SECURITIES>                       2950806
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1348821
<TOTAL-LIABILITIES>                            4299627
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     285802815
<SHARES-COMMON-STOCK>                          7012393
<SHARES-COMMON-PRIOR>                          5145398
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                        (342123)
<ACCUMULATED-NET-GAINS>                       13300068
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      50525123
<NET-ASSETS>                                 349285883
<DIVIDEND-INCOME>                              2920674
<INTEREST-INCOME>                               500856
<OTHER-INCOME>                                (283215)
<EXPENSES-NET>                               (3439008)
<NET-INVESTMENT-INCOME>                       (300693)
<REALIZED-GAINS-CURRENT>                      13414020
<APPREC-INCREASE-CURRENT>                     15531402
<NET-CHANGE-FROM-OPS>                         28644729
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                    (10136119)
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<NUMBER-OF-SHARES-SOLD>                        8419189
<NUMBER-OF-SHARES-REDEEMED>                  (7079383)
<SHARES-REINVESTED>                             527189
<NET-CHANGE-IN-ASSETS>                        64735193
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     29131434
<OVERDISTRIB-NII-PRIOR>                        (41430)
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          1587187
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                3455255
<AVERAGE-NET-ASSETS>                         319854077
<PER-SHARE-NAV-BEGIN>                            18.45
<PER-SHARE-NII>                                   0.03
<PER-SHARE-GAIN-APPREC>                           1.74
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (1.92)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              18.30
<EXPENSE-RATIO>                                   1.67
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
<SERIES>
   <NUMBER> 032
   <NAME> MFS WORLD EQUITY FUND CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1997
<PERIOD-START>                             NOV-01-1996
<PERIOD-END>                               APR-30-1997
<INVESTMENTS-AT-COST>                        296102637
<INVESTMENTS-AT-VALUE>                       345840921
<RECEIVABLES>                                  7621283
<ASSETS-OTHER>                                    2676
<OTHER-ITEMS-ASSETS>                            120630
<TOTAL-ASSETS>                               353585510
<PAYABLE-FOR-SECURITIES>                       2950806
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1348821
<TOTAL-LIABILITIES>                            4299627
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     285802815
<SHARES-COMMON-STOCK>                         11485635
<SHARES-COMMON-PRIOR>                          9921316
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                        (342123)
<ACCUMULATED-NET-GAINS>                       13300068
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      50525123
<NET-ASSETS>                                 349285883
<DIVIDEND-INCOME>                              2920674
<INTEREST-INCOME>                               500856
<OTHER-INCOME>                                (283215)
<EXPENSES-NET>                               (3439008)
<NET-INVESTMENT-INCOME>                       (300693)
<REALIZED-GAINS-CURRENT>                      13414020
<APPREC-INCREASE-CURRENT>                     15531402
<NET-CHANGE-FROM-OPS>                         28644729
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                    (18280747)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        4624673
<NUMBER-OF-SHARES-REDEEMED>                  (4032681)
<SHARES-REINVESTED>                             972327
<NET-CHANGE-IN-ASSETS>                        64735193
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     29131434
<OVERDISTRIB-NII-PRIOR>                        (41430)
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          1587187
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                3455255
<AVERAGE-NET-ASSETS>                         319854077
<PER-SHARE-NAV-BEGIN>                            18.36
<PER-SHARE-NII>                                 (0.04)
<PER-SHARE-GAIN-APPREC>                           1.74
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (1.78)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              18.28
<EXPENSE-RATIO>                                   2.43
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
<SERIES>
   <NUMBER> 033
   <NAME> MFS WORLD EQUITY FUND CLASS C
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1997
<PERIOD-START>                             NOV-01-1996
<PERIOD-END>                               APR-30-1997
<INVESTMENTS-AT-COST>                        296102637
<INVESTMENTS-AT-VALUE>                       345840921
<RECEIVABLES>                                  7621283
<ASSETS-OTHER>                                    2676
<OTHER-ITEMS-ASSETS>                            120630
<TOTAL-ASSETS>                               353585510
<PAYABLE-FOR-SECURITIES>                       2950806
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1348821
<TOTAL-LIABILITIES>                            4299627
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     285802815
<SHARES-COMMON-STOCK>                           599311 
<SHARES-COMMON-PRIOR>                           411292
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                        (342123)
<ACCUMULATED-NET-GAINS>                       13300068
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      50525123
<NET-ASSETS>                                 349285883
<DIVIDEND-INCOME>                              2920674
<INTEREST-INCOME>                               500856
<OTHER-INCOME>                                (283215)
<EXPENSES-NET>                               (3439008)
<NET-INVESTMENT-INCOME>                       (300693)
<REALIZED-GAINS-CURRENT>                      13414020
<APPREC-INCREASE-CURRENT>                     15531402
<NET-CHANGE-FROM-OPS>                         28644729
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                      (828520)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                         368993
<NUMBER-OF-SHARES-REDEEMED>                   (220583)
<SHARES-REINVESTED>                              39609
<NET-CHANGE-IN-ASSETS>                        64735193
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     29131434
<OVERDISTRIB-NII-PRIOR>                        (41430)
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          1587187
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                3455255
<AVERAGE-NET-ASSETS>                         319854077
<PER-SHARE-NAV-BEGIN>                            18.24
<PER-SHARE-NII>                                 (0.04)
<PER-SHARE-GAIN-APPREC>                           1.73
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                       (1.84)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              18.09
<EXPENSE-RATIO>                                   2.41
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
<SERIES>
   <NUMBER> 034
   <NAME> MFS WORLD EQUITY FUND CLASS I
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1997
<PERIOD-START>                             NOV-01-1996
<PERIOD-END>                               APR-30-1997
<INVESTMENTS-AT-COST>                        296102637
<INVESTMENTS-AT-VALUE>                       345840921
<RECEIVABLES>                                  7621283
<ASSETS-OTHER>                                    2676
<OTHER-ITEMS-ASSETS>                            120630
<TOTAL-ASSETS>                               353585510
<PAYABLE-FOR-SECURITIES>                       2950806
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      1348821
<TOTAL-LIABILITIES>                            4299627
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     285802815
<SHARES-COMMON-STOCK>                             8680 
<SHARES-COMMON-PRIOR>                                0
<ACCUMULATED-NII-CURRENT>                            0
<OVERDISTRIBUTION-NII>                        (342123)
<ACCUMULATED-NET-GAINS>                       13300068
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      50525123
<NET-ASSETS>                                 349285883
<DIVIDEND-INCOME>                              2920674
<INTEREST-INCOME>                               500856
<OTHER-INCOME>                                (283215)
<EXPENSES-NET>                               (3439008)
<NET-INVESTMENT-INCOME>                       (300693)
<REALIZED-GAINS-CURRENT>                      13414020
<APPREC-INCREASE-CURRENT>                     15531402
<NET-CHANGE-FROM-OPS>                         28644729
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                            0
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                           8680
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                        64735193
<ACCUMULATED-NII-PRIOR>                              0
<ACCUMULATED-GAINS-PRIOR>                     29131434
<OVERDISTRIB-NII-PRIOR>                        (41430)
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                          1587187
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                3455255
<AVERAGE-NET-ASSETS>                         319854077
<PER-SHARE-NAV-BEGIN>                            17.57
<PER-SHARE-NII>                                   0.08
<PER-SHARE-GAIN-APPREC>                           0.67
<PER-SHARE-DIVIDEND>                                 0
<PER-SHARE-DISTRIBUTIONS>                            0
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              18.32
<EXPENSE-RATIO>                                   1.58
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
<SERIES>
   <NUMBER> 011
   <NAME> MFS WORLD TOTAL RETURN FUND CLASS A
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1997
<PERIOD-START>                             NOV-01-1996
<PERIOD-END>                               APR-30-1997
<INVESTMENTS-AT-COST>                        205480656
<INVESTMENTS-AT-VALUE>                       238608171
<RECEIVABLES>                                 14356846
<ASSETS-OTHER>                                    2030
<OTHER-ITEMS-ASSETS>                             45431
<TOTAL-ASSETS>                               253012478
<PAYABLE-FOR-SECURITIES>                       9973886
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      2790312
<TOTAL-LIABILITIES>                           12764198
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     200708391
<SHARES-COMMON-STOCK>                         10930827
<SHARES-COMMON-PRIOR>                         10197969
<ACCUMULATED-NII-CURRENT>                      2336632
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        4701373
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      32501884
<NET-ASSETS>                                 240248280
<DIVIDEND-INCOME>                              1661833
<INTEREST-INCOME>                              3014989
<OTHER-INCOME>                                (284638)
<EXPENSES-NET>                               (2142757)
<NET-INVESTMENT-INCOME>                        2249427
<REALIZED-GAINS-CURRENT>                       4728847
<APPREC-INCREASE-CURRENT>                      3246909
<NET-CHANGE-FROM-OPS>                         10225183
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (744505)
<DISTRIBUTIONS-OF-GAINS>                     (6137212)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1307523
<NUMBER-OF-SHARES-REDEEMED>                  (1073692)
<SHARES-REINVESTED>                             499027
<NET-CHANGE-IN-ASSETS>                        24369236
<ACCUMULATED-NII-PRIOR>                        1027892
<ACCUMULATED-GAINS-PRIOR>                     10271896
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           960434
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                2147611
<AVERAGE-NET-ASSETS>                         230134622
<PER-SHARE-NAV-BEGIN>                            12.73
<PER-SHARE-NII>                                   0.14
<PER-SHARE-GAIN-APPREC>                           0.47
<PER-SHARE-DIVIDEND>                            (0.30)
<PER-SHARE-DISTRIBUTIONS>                       (0.37)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.67
<EXPENSE-RATIO>                                   1.60
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
<SERIES>
   <NUMBER> 012
   <NAME> MFS WORLD TOTAL RETURN FUND CLASS B
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1997
<PERIOD-START>                             NOV-01-1996
<PERIOD-END>                               APR-30-1997
<INVESTMENTS-AT-COST>                        205480656
<INVESTMENTS-AT-VALUE>                       238608171
<RECEIVABLES>                                 14356846
<ASSETS-OTHER>                                    2030
<OTHER-ITEMS-ASSETS>                             45431
<TOTAL-ASSETS>                               253012478
<PAYABLE-FOR-SECURITIES>                       9973886
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      2790312
<TOTAL-LIABILITIES>                           12764198
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     200708391
<SHARES-COMMON-STOCK>                          6498856
<SHARES-COMMON-PRIOR>                          5646347
<ACCUMULATED-NII-CURRENT>                      2336632
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        4701373
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      32501884
<NET-ASSETS>                                 240248280
<DIVIDEND-INCOME>                              1661833
<INTEREST-INCOME>                              3014989
<OTHER-INCOME>                                (284638)
<EXPENSES-NET>                               (2142757)
<NET-INVESTMENT-INCOME>                        2249427
<REALIZED-GAINS-CURRENT>                       4728847
<APPREC-INCREASE-CURRENT>                      3246909
<NET-CHANGE-FROM-OPS>                         10225183
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                     (155986)
<DISTRIBUTIONS-OF-GAINS>                     (3460672)
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                        1136810
<NUMBER-OF-SHARES-REDEEMED>                   (539874)
<SHARES-REINVESTED>                             255573
<NET-CHANGE-IN-ASSETS>                        24369236
<ACCUMULATED-NII-PRIOR>                        1027892
<ACCUMULATED-GAINS-PRIOR>                     10271896
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                           960434
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                                2147611
<AVERAGE-NET-ASSETS>                         230134622
<PER-SHARE-NAV-BEGIN>                            12.71
<PER-SHARE-NII>                                   0.10
<PER-SHARE-GAIN-APPREC>                           0.47
<PER-SHARE-DIVIDEND>                            (0.26)
<PER-SHARE-DISTRIBUTIONS>                       (0.37)
<RETURNS-OF-CAPITAL>                                 0
<PER-SHARE-NAV-END>                              12.65
<EXPENSE-RATIO>                                   2.27
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        


</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
<SERIES>
   <NUMBER> 013
   <NAME> MFS WORLD TOTAL RETURN FUND CLASS C
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1997
<PERIOD-START>                             NOV-01-1996
<PERIOD-END>                               APR-30-1997
<INVESTMENTS-AT-COST>                        205480656
<INVESTMENTS-AT-VALUE>                       238608171
<RECEIVABLES>                                 14356846
<ASSETS-OTHER>                                    2030
<OTHER-ITEMS-ASSETS>                             45431
<TOTAL-ASSETS>                               253012478
<PAYABLE-FOR-SECURITIES>                       9973886
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      2790312
<TOTAL-LIABILITIES>                           12764198
<SENIOR-EQUITY>                                      0
<PAID-IN-CAPITAL-COMMON>                     200708391
<SHARES-COMMON-STOCK>                          1400916
<SHARES-COMMON-PRIOR>                          1120131
<ACCUMULATED-NII-CURRENT>                      2336632
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                        4701373
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                      32501884
<NET-ASSETS>                                 240248280
<DIVIDEND-INCOME>                              1661833
<INTEREST-INCOME>                              3014989
<OTHER-INCOME>                                (284638)
<EXPENSES-NET>                               (2142757)
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</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6
<CIK> 0000863032
<NAME> MFS SERIES TRUST VI
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   <NAME> MFS WORLD TOTAL RETURN FUND CLASS I
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<S>                             <C>
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