Carl Martin (April 1 or 15, 1906 – May 10, 1979) was an American Piedmont blues musician and vocalist who was proficient at playing several instruments and performed in various musical styles. Martin was born in Big Stone Gap, Virginia. He made his earliest recordings as a member of several groups, including the Four Keys, the Tennessee Chocolate Drops, and the Wandering Troubadours. He also performed in the trio Martin, Bogan, and Armstrong (with Ted Bogan and Howard Armstrong), helping keep alive the African-American old-time music string band tradition in Appalachian music.