Lancelot Lumsden (30 October 1939 – 18 June 2011) was a Jamaican professional tennis player.

Born in Buff Bay, Lumsden played collegiate tennis in the United States at Southern Illinois University Carbondale in the early 1960s.

He went on to compete on the international circuit and featured in the main draws of all four grand slam tournaments, which included a match up against number one seed Rod Laver at the 1968 French Open.

[1] Lumsden was a Davis Cup representative for the Caribbean/West Indies and appeared in a total of seven ties.

His most famous win came against Ashe in doubles, when the Caribbean/West Indies hosted the Americans in Kingston in 1966.