The1983–84 Challenge Cup was the 83rd staging ofrugby league's oldest knockout competition, theChallenge Cup. Known as theState Express Challenge Cup due to sponsorship byState Express 555, the final was contested byWidnes andWigan atWembley. Widnes won the match 19–6.
Widnes were appearing atWembley for the seventh time in the last ten years, whileWigan were making their first appearance in the final since 1970.Widnes were the winners of a fairly one-sided encounter by a score of 19–6, withJoe Lydon winning theLance Todd Trophy.[2]