<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION
EXTRACTED FROM THE FORM 10-Q OF ALCAN ALUMINIUM LIMITED
FOR THE QUARTER ENDED 30 JUNE 1998 AND IS QUALIFIED
IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                             440
<SECURITIES>                                         0
<RECEIVABLES>                                    1,415
<ALLOWANCES>                                         0
<INVENTORY>                                      1,335
<CURRENT-ASSETS>                                 3,190
<PP&E>                                          11,948
<DEPRECIATION>                                   6,439
<TOTAL-ASSETS>                                   9,301
<CURRENT-LIABILITIES>                            1,325
<BONDS>                                          1,222
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                        160
<COMMON>                                         1,256
<OTHER-SE>                                       3,989
<TOTAL-LIABILITY-AND-EQUITY>                     9,301
<SALES>                                          3,939
<TOTAL-REVENUES>                                 3,976
<CGS>                                            3,046
<TOTAL-COSTS>                                    3,046
<OTHER-EXPENSES>                                   223
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  44
<INCOME-PRETAX>                                    394
<INCOME-TAX>                                       154
<INCOME-CONTINUING>                                203
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       203
<EPS-PRIMARY>                                     0.87
<EPS-DILUTED>                                     0.87