The 2004–05 UPC-ligaen was the sixty-fifth season of Norway's premier ice hockey league, Eliteserien, which as of this season became known as the UPC-ligaen after UPC had acquired the naming rights for five years. Vålerenga won both the League Championship and the Norwegian Championship, completing their nineteenth "double". A total of ten teams contested the league, including newcomers Comet who competed at the highest level for the first time.