<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
consolidated Marsh & McLennan Companies, Inc. and subsidiaries June 30, 2000
financial statements and is qualified in its entirety by reference to such
financial statements.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> JUN-30-2000
<PERIOD-END> JUN-30-2000
<CASH> 439,000,000
<SECURITIES> 0
<RECEIVABLES> 2,788,000,000
<ALLOWANCES> (132,000,000)
<INVENTORY> 0
<CURRENT-ASSETS> 3,695,000,000
<PP&E> 2,303,000,000
<DEPRECIATION> 964,000,000
<TOTAL-ASSETS> 13,636,000,000
<CURRENT-LIABILITIES> 4,326,000,000
<BONDS> 2,349,000,000
0
0
<COMMON> 272,000,000
<OTHER-SE> 4,367,000,000
<TOTAL-LIABILITY-AND-EQUITY> 13,636,000,000
<SALES> 0
<TOTAL-REVENUES> 5,146,000,000
<CGS> 0
<TOTAL-COSTS> 4,028,000,000
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 2,100,000
<INTEREST-EXPENSE> 128,000,000
<INCOME-PRETAX> 1,001,000,000
<INCOME-TAX> 388,000,000
<INCOME-CONTINUING> 613,000,000
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 613,000,000
<EPS-BASIC> 2.28
<EPS-DILUTED> 2.15
</TABLE>