<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000880195
<NAME> Fidelity Aberdeen Street Trust
<SERIES>
<NUMBER> 51
<NAME> Fidelity Freedom 2010 Fund
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
6-mos
<FISCAL-YEAR-END>
mar-31-2001
<PERIOD-END>
sep-30-2000
<INVESTMENTS-AT-COST>
1,984,329
<INVESTMENTS-AT-VALUE>
2,159,458
<RECEIVABLES>
11,659
<ASSETS-OTHER>
1
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
2,171,118
<PAYABLE-FOR-SECURITIES>
9,181
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
2,664
<TOTAL-LIABILITIES>
11,845
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
1,927,018
<SHARES-COMMON-STOCK>
144,261
<SHARES-COMMON-PRIOR>
129,439
<ACCUMULATED-NII-CURRENT>
33,821
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
23,305
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
175,129
<NET-ASSETS>
2,159,273
<DIVIDEND-INCOME>
34,651
<INTEREST-INCOME>
5
<OTHER-INCOME>
0
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683
<NET-INVESTMENT-INCOME>
33,973
<REALIZED-GAINS-CURRENT>
32,836
<APPREC-INCREASE-CURRENT>
(62,940)
<NET-CHANGE-FROM-OPS>
3,869
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
13,265
<DISTRIBUTIONS-OF-GAINS>
73,697
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
69,601
<NUMBER-OF-SHARES-REDEEMED>
60,811
<SHARES-REINVESTED>
6,032
<NET-CHANGE-IN-ASSETS>
146,186
<ACCUMULATED-NII-PRIOR>
13,113
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64,167
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0
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0
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1,064
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0
<GROSS-EXPENSE>
1,067
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2,126,514
<PER-SHARE-NAV-BEGIN>
15.550
<PER-SHARE-NII>
.240
<PER-SHARE-GAIN-APPREC>
(.230)
<PER-SHARE-DIVIDEND>
.090
<PER-SHARE-DISTRIBUTIONS>
.500
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
14.970
<EXPENSE-RATIO>
8
</TABLE>
