Guy Martin (born 4 November 1981) is a British former motorcycle racer and heavy vehicle mechanic who became a television presenter. In July 2017, Martin retired from motorcycle racing. Martin started racing in 1998 and in 2004 competed on a road circuit for the first time at the Isle of Man TT. He has a total of 17 podium finishes at TT events over several years. He has broken his back twice in racing accidents, in the 2010 TT and the 2015 Ulster Grand Prix.