<TABLE> <S> <C>
<ARTICLE> 6
<RESTATED>
<CIK> 0000857490
<NAME> VANGUARD VARIABLE INSURANCE FUND
<SERIES>
<NUMBER> 13
<NAME> REIT INDEX PORTFOLIO
<MULTIPLIER> 1000
<CURRENCY> US
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-START> OCT-01-1999
<PERIOD-END> MAR-31-2000
<EXCHANGE-RATE> 1
<INVESTMENTS-AT-COST> 28910
<INVESTMENTS-AT-VALUE> 27132
<RECEIVABLES> 272
<ASSETS-OTHER> 5
<OTHER-ITEMS-ASSETS> 0
<TOTAL-ASSETS> 27409
<PAYABLE-FOR-SECURITIES> 209
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 35
<TOTAL-LIABILITIES> 244
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 28128
<SHARES-COMMON-STOCK> 2776
<SHARES-COMMON-PRIOR> 2088
<ACCUMULATED-NII-CURRENT> 788
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 27
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> (1778)
<NET-ASSETS> 27165
<DIVIDEND-INCOME> 841
<INTEREST-INCOME> 14
<OTHER-INCOME> 1
<EXPENSES-NET> 47
<NET-INVESTMENT-INCOME> 809
<REALIZED-GAINS-CURRENT> 82
<APPREC-INCREASE-CURRENT> (330)
<NET-CHANGE-FROM-OPS> 561
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> 617
<DISTRIBUTIONS-OF-GAINS> 27
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 1236
<NUMBER-OF-SHARES-REDEEMED> 616
<SHARES-REINVESTED> 67
<NET-CHANGE-IN-ASSETS> 6605
<ACCUMULATED-NII-PRIOR> 596
<ACCUMULATED-GAINS-PRIOR> (28)
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 11
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 47
<AVERAGE-NET-ASSETS> 23426
<PER-SHARE-NAV-BEGIN> 9.85
<PER-SHARE-NII> 0.23
<PER-SHARE-GAIN-APPREC> (0.05)
<PER-SHARE-DIVIDEND> 0.23
<PER-SHARE-DISTRIBUTIONS> 0.01
<RETURNS-OF-CAPITAL> 0
<PER-SHARE-NAV-END> 9.79
<EXPENSE-RATIO> 0.40
</TABLE>