The 1998 Challenge Cup, known as the Silk Cut Challenge Cup for sponsorship reasons, was the 97th staging of the Challenge Cup, a rugby league cup competition. The competition ended with the final on 2 May 1998, which was played at Wembley Stadium. The tournament was won by Sheffield Eagles, who beat Wigan Warriors 17–8 in the final, and is generally considered to be one of the biggest upsets in the history of the Challenge Cup final. The Lance Todd Trophy was won by Mark Aston.