EXHIBIT 23.1 LOGO PricewaterhouseCoopers PRICEWATERHOUSECOOPERS LLP CHARTERED ACCOUNTANTS 1250 Rene-Levesque Boulevard West Suite 3500 Montreal, Quebec Canada H3B 2G4 Telephone +1 (514) 205 5000 Facsimile +1 (514) 938 5709 Direct Fax +1 (514) 876-8158 To the Directors of Alcan Inc.: CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in this Registration Statement on Form S-3 of our report dated February 15, 2001 relating to the financial statements, which appear in the 2000 Annual Report to Shareholders, which is incorporated by reference in Alcan Inc.'s Annual Report on Form 10-K for the year ended December 31, 2000. We also consent to the references to us under the heading "Experts" in such Registration Statement. /s/ PricewaterhouseCoopers LLP 25 February 2002