The 1903 Challenge Cup was the 7th staging of rugby league's oldest knockout competition, the Challenge Cup.

[1] It featured clubs from the 1902-03 Northern Rugby Football Union season.

The final was contested by Halifax and Salford at Headingley Stadium in Leeds.

[2] on Saturday 25 April 1903, in front of a crowd of 32,507.

Halifax were victorious, beating Salford 7–0.