<ARTICLE>                     5
<LEGEND>

This schedule contains summary financial information extracted from the
consolidated Marsh & McLennen Companies, Inc. and subsidiaries September 30,
2000 financial statements and is qualified in its entirety by reference to such
financial statements.





                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                              SEP-30-2000
<PERIOD-END>                                   SEP-30-2000
<CASH>                                         341,000,000
<SECURITIES>                                             0
<RECEIVABLES>                                2,970,000,000
<ALLOWANCES>                                  (127,000,000)
<INVENTORY>                                              0
<CURRENT-ASSETS>                             3,687,000,000
<PP&E>                                       2,307,000,000
<DEPRECIATION>                                 982,000,000
<TOTAL-ASSETS>                              13,616,000,000
<CURRENT-LIABILITIES>                        4,062,000,000
<BONDS>                                      2,350,000,000
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                              0
<COMMON>                                       276,000,000
<OTHER-SE>                                   4,727,000,000
<TOTAL-LIABILITY-AND-EQUITY>                13,616,000,000
<SALES>                                                  0
<TOTAL-REVENUES>                             7,681,000,000
<CGS>                                                    0
<TOTAL-COSTS>                                6,047,000,000
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                 3,500,000
<INTEREST-EXPENSE>                             191,000,000
<INCOME-PRETAX>                              1,461,000,000
<INCOME-TAX>                                   566,000,000
<INCOME-CONTINUING>                            895,000,000
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                   895,000,000
<EPS-BASIC>                                           3.32
<EPS-DILUTED>                                         3.12