<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE FORM
10-Q OF ALCAN ALUMINUM LIMITED FOR THE QUARTER EBDED 31 MARCH 2000 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               MAR-31-2000
<CASH>                                             112
<SECURITIES>                                         0
<RECEIVABLES>                                    1,355
<ALLOWANCES>                                         0
<INVENTORY>                                      1,315
<CURRENT-ASSETS>                                 2,782
<PP&E>                                          13,117
<DEPRECIATION>                                   6,535
<TOTAL-ASSETS>                                   9,904
<CURRENT-LIABILITIES>                            1,775
<BONDS>                                            877
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                        160
<COMMON>                                         1,243
<OTHER-SE>                                       4,259
<TOTAL-LIABILITY-AND-EQUITY>                     9,904
<SALES>                                          1,962
<TOTAL-REVENUES>                                 1,979
<CGS>                                            1,454
<TOTAL-COSTS>                                    1,454
<OTHER-EXPENSES>                                   116
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   6
<INCOME-PRETAX>                                    277
<INCOME-TAX>                                       104
<INCOME-CONTINUING>                                174
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       174
<EPS-BASIC>                                       0.78
<EPS-DILUTED>                                     0.78