The 1911–12 Challenge Cup was the 16th staging of rugby league's oldest knockout competition, the Challenge Cup.

[1] The final was contested by Dewsbury and Oldham at Headingley Rugby Stadium in Leeds.

[2] The final was played on Saturday, 27 April 1912, where Dewsbury caused an upset to beat Oldham 8–5 at Headingley in front of a crowd of 15,271.

[3][4] Dewsbury won the Challenge Cup in their first appearance in the final.

[5]