David Webb (born 17 March 1982) is a British long-distance runner. Webb was selected to compete for Great Britain in the marathon at the London 2012 Olympics based on a personal best time of 2:15:48 he achieved in 2011.^[1] He withdrew before the event, however, because of a stress fracture and failed fitness test.^[2]

Prior to the London Olympics, he represented Great Britain in the marathon at the 2010 European Athletics Championships, coming 16th, and at the 2011 World Championships in Athletics, placing 15th.