<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FORM 10-Q OF ALCAN ALUMINIUM LIMITED
FOR THE QUARTER ENDED 30 SEPTEMBER 1998 AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                             375
<SECURITIES>                                         0
<RECEIVABLES>                                    1,440
<ALLOWANCES>                                         0
<INVENTORY>                                      1,412
<CURRENT-ASSETS>                                 3,227
<PP&E>                                          12,600
<DEPRECIATION>                                   6,700
<TOTAL-ASSETS>                                   9,736
<CURRENT-LIABILITIES>                            1,380
<BONDS>                                          1,342
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                        160
<COMMON>                                         1,259
<OTHER-SE>                                       4,122
<TOTAL-LIABILITY-AND-EQUITY>                     9,736
<SALES>                                          5,889
<TOTAL-REVENUES>                                 5,936
<CGS>                                            4,560
<TOTAL-COSTS>                                    4,560
<OTHER-EXPENSES>                                   339
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  65
<INCOME-PRETAX>                                    555
<INCOME-TAX>                                       198
<INCOME-CONTINUING>                                310
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       310
<EPS-PRIMARY>                                     1.33
<EPS-DILUTED>                                     1.33