Samuel or Sam Martin may refer to:
- Samuel Martin (planter) (1694âÂÂ1776), planter and politician in Antigua
- Samuel Martin (Secretary to the Treasury) (1714âÂÂ1788), British politician and administrator
- Sir Samuel Martin (politician) (1801âÂÂ1883), Anglo-Irish politician and judge
- Samuel Martin (writer) (1810âÂÂ1848), New Zealand land claimant, magistrate, journalist and writer
- Samuel Martin (entrepreneur) (born 1984), British entrepreneur
- Samuel Martin (missionary), American Presbyterian missionary
- Samuel E. Martin (1924âÂÂ2009), linguist (Korean and Japanese) and designer of the Yale Romanization for Korean
- Samuel Soler MartÃÂn (born 1979), Paralympic swimmer from Spain
- Sam Martin (singer) (born 1983), American singer and songwriter
- Sam Martin (speedway rider) (born 1989), Australian speedway rider
- Sam Martin (American football) (born 1990), American football player
- Sam Martin, lead singer of the band Youngblood Hawke
- Samuel Martin (runner) (born 1906), American middle-distance runner, 3rd in the 880 yards at the 1929 USA Outdoor Track and Field Championships