The 1970–71 Challenge Cup was the 70th staging of rugby league's oldest knockout competition, the Challenge Cup.

The final was contested by Leeds and Leigh at Wembley.

The final was played on Saturday 15 May 1971, where Leigh beat Leeds 24-7 at Wembley in front of a crowd of 85,514.

[1] The winner of the Lance Todd Trophy was Leigh's captain-coach, Alex Murphy[2] who was stretchered off after a clash with Leeds player, Syd Hynes.

For his part in the "clash", Hynes was sent off,[3][4] and became the first player to be sent-off in a Challenge Cup final after the headbutt on Leigh's Murphy.