The Widnes Vikings are an English rugby league club in Widnes, Cheshire, which competes in the Betfred Championship. The club plays home matches at DCBL Stadium. Founded as Widnes Football Club, they are one of the original twenty-two rugby clubs that formed the Northern Rugby Football Union in 1895. Their historic nickname is "The Chemics" after the main industry in Widnes, but now they use their modern nickname, "The Vikings".

The World Club Challenge is an annual rugby league competition between the winners of the Australian National Rugby League and the British Super League, for the de facto club world championship of the sport.