Here are 25 pictures from times they have reigned supreme in the famous knock-out competition.
13.
2002 - Wigan Winners - Challenge Cup Final 2002 - St Helens v Wigan. Photo: Picture: Gerald Webster - GETTY
14.
1989 - Wigan v St Helens Challenge Cup '89 final winners Wigan as Ellery Hanley lifts the trophy. Photo: Picture Gerald Webster
15.
1988: Shaun Edwards of Wigan lifts the trophy aloft after their victory in the Silk Cut Challenge Cup final against Halifax at Wembley Stadium in London. Wigan won the match 32-12. Photo: Credit: Simon Bruty/Allsport
16.
1989 - Wigan v St Helens Challenge Cup '89 final winners Wigan. Photo: Picture Gerald Webster