<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000823535
<NAME> Fidelity Boston Street Trust
<SERIES>
<NUMBER> 3
<NAME> Fidelity Target Timeline 2003
<MULTIPLIER> 1,000
<S>
<C>
<PERIOD-TYPE>
yEaR
<FISCAL-YEAR-END>
jul-31-2000
<PERIOD-END>
jul-31-2000
<INVESTMENTS-AT-COST>
37,486
<INVESTMENTS-AT-VALUE>
36,539
<RECEIVABLES>
1,028
<ASSETS-OTHER>
0
<OTHER-ITEMS-ASSETS>
0
<TOTAL-ASSETS>
37,567
<PAYABLE-FOR-SECURITIES>
0
<SENIOR-LONG-TERM-DEBT>
0
<OTHER-ITEMS-LIABILITIES>
65
<TOTAL-LIABILITIES>
65
<SENIOR-EQUITY>
0
<PAID-IN-CAPITAL-COMMON>
39,053
<SHARES-COMMON-STOCK>
4,141
<SHARES-COMMON-PRIOR>
2,554
<ACCUMULATED-NII-CURRENT>
5
<OVERDISTRIBUTION-NII>
0
<ACCUMULATED-NET-GAINS>
(610)
<OVERDISTRIBUTION-GAINS>
0
<ACCUM-APPREC-OR-DEPREC>
(946)
<NET-ASSETS>
37,502
<DIVIDEND-INCOME>
0
<INTEREST-INCOME>
2,110
<OTHER-INCOME>
0
<EXPENSES-NET>
99
<NET-INVESTMENT-INCOME>
2,011
<REALIZED-GAINS-CURRENT>
(561)
<APPREC-INCREASE-CURRENT>
(33)
<NET-CHANGE-FROM-OPS>
1,417
<EQUALIZATION>
0
<DISTRIBUTIONS-OF-INCOME>
2,026
<DISTRIBUTIONS-OF-GAINS>
0
<DISTRIBUTIONS-OTHER>
0
<NUMBER-OF-SHARES-SOLD>
2,521
<NUMBER-OF-SHARES-REDEEMED>
1,141
<SHARES-REINVESTED>
207
<NET-CHANGE-IN-ASSETS>
13,785
<ACCUMULATED-NII-PRIOR>
14
<ACCUMULATED-GAINS-PRIOR>
(41)
<OVERDISTRIB-NII-PRIOR>
0
<OVERDIST-NET-GAINS-PRIOR>
(15)
<GROSS-ADVISORY-FEES>
122
<INTEREST-EXPENSE>
0
<GROSS-EXPENSE>
285
<AVERAGE-NET-ASSETS>
28,331
<PER-SHARE-NAV-BEGIN>
9.290
<PER-SHARE-NII>
.645
<PER-SHARE-GAIN-APPREC>
(.229)
<PER-SHARE-DIVIDEND>
.648
<PER-SHARE-DISTRIBUTIONS>
0
<RETURNS-OF-CAPITAL>
0
<PER-SHARE-NAV-END>
9.060
<EXPENSE-RATIO>
35
</TABLE>
