Harold Martin Lampkin (28 December 1950 – 2 April 2016) was an English professional motorcycle competitor.
He competed in a variety of off-road motorcycle events, but specialized in observed trials competitions, winning the inaugural FIM Trial World Championship held in 1975.
In a genre of motorcycling competition that features balletic grace and acrobatic finesse, Lampkin was an iconoclast, using sheer momentum and physical strength to assault trials course sections.