Michael ("Mike") Colin Gratton (born 28 November 1954) is a former elite long distance runner from Conisbrough, South Yorkshire, England, and a past winner of the London Marathon. A member of the Kent athletics club Invicta AC, he gained a bronze medal in the 1982 Commonwealth Games marathon (2:12:06). He won the 1983 London Marathon in a time of 2:09:43, a time which places him 13th on the UK all-time marathon list. He now runs a sports holiday company called 2:09 Events.