<TABLE> <S> <C>
<ARTICLE> 9
<CIK> 0000064782
<NAME> MELLON FINANCIAL CORPORATION (FORMERLY MELLON BANK CORP.)
<MULTIPLIER> 1,000,000
<CURRENCY> U.S. DOLLARS
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<EXCHANGE-RATE> 1
<CASH> 2,888
<INT-BEARING-DEPOSITS> 854
<FED-FUNDS-SOLD> 258
<TRADING-ASSETS> 371
<INVESTMENTS-HELD-FOR-SALE> 5,323
<INVESTMENTS-CARRYING> 1,063
<INVESTMENTS-MARKET> 1,058
<LOANS> 27,421
<ALLOWANCE> 400
<TOTAL-ASSETS> 45,337
<DEPOSITS> 31,745
<SHORT-TERM> 2,306
<LIABILITIES-OTHER> 2,732
<LONG-TERM> 3,531
991<F1>
0
<COMMON> 294
<OTHER-SE> 3,738
<TOTAL-LIABILITIES-AND-EQUITY> 45,337<F1>
<INTEREST-LOAN> 1,703
<INTEREST-INVEST> 310
<INTEREST-OTHER> 87
<INTEREST-TOTAL> 2,113
<INTEREST-DEPOSIT> 727
<INTEREST-EXPENSE> 1,058
<INTEREST-INCOME-NET> 1,055
<LOAN-LOSSES> 30
<SECURITIES-GAINS> 0
<EXPENSE-OTHER> 2,186
<INCOME-PRETAX> 1,183
<INCOME-PRE-EXTRAORDINARY> 752
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 752
<EPS-BASIC> 1.53
<EPS-DILUTED> 1.51
<YIELD-ACTUAL> 3.83
<LOANS-NON> 204
<LOANS-PAST> 109
<LOANS-TROUBLED> 0
<LOANS-PROBLEM> 34
<ALLOWANCE-OPEN> 403
<CHARGE-OFFS> 54
<RECOVERIES> 21
<ALLOWANCE-CLOSE> 400
<ALLOWANCE-DOMESTIC> 0
<ALLOWANCE-FOREIGN> 0
<ALLOWANCE-UNALLOCATED> 0
<FN>
<F1>Includes $991 million of guaranteed preferred beneficial interests in
the Corporation's junior subordinated deferrable interest debentures.
</FN>
</TABLE>