John Patrick Platten (born 17 March 1963) is a retired Australian rules footballer. Platten's career began in the SANFL, where he won a Magarey Medal with Central District, and also with Hawthorn, where he played in four premierships as well as winning the 1987 Brownlow Medal. Platten remains a popular and respected figure at both clubs, and is also an inductee in both the AFL and SANFL Halls of Fame. Platten also competed in the Gladiator Team Sports Challenge in 1995.