John Patrick Lyon MBE (born 9 March 1962) is a retired boxer from Great Britain.

[1] He represented England and won a silver medal in the light flyweight division, at the 1982 Commonwealth Games in Brisbane, Queensland, Australia.

[2] Four years later he represented England again and won a gold medal in the men's flyweight division (– 48 kg), at the 1986 Commonwealth Games in Edinburgh, Scotland.

[4] Lyon won eight English ABA titles, four flyweight and four light-flyweight and a bronze medal in the 1991 Acropolis Cup, retiring immediately afterwards.

He also competed in the Prizefighter tournament at super-flyweight in 2011, but was defeated by Ryan Farrag in the quarter finals.