Léon Jeck (8 February 1947 – 24 June 2007) was a Belgian international footballer. He was a tough-tackling Centre-Back for Standard Liège and played against Russia and Mexico in the 1970 World Cup Finals. It was Jeck's tackle that was controversially given as a penalty in the Mexico game that helped the hosts, not Belgium, progress to the next stage. He died on 23 June 2007 at the age of 60 from a pulmonary embolism.