Martin Kiptolo Lel (born 29 October 1978 in Kapsabet) is a Kenyan long distance and marathon runner. He won the London Marathon in 2005, 2007, and 2008, the New York City Marathon in 2003 and 2007 and the Great North Run in 2007 and 2009. His personal best time, as of April 2008, is 2:05:15, which he ran in the 2008 London Marathon setting a course record. Lel is coached by Claudio Berardelli and lives in the Rift Valley region of Kenya.