Clucas is a surname of Manx origin, derived from "Mac Lucas", meaning "son of Luke". It may refer to:
Ben Clucas (born 1984), British racing driver Flo Clucas (born 1947), English local politician George Frederick Clucas (1870–1937), Manx politician Humphrey Clucas (born 1941), British composer Sir Kenneth Clucas (1921–2010), English civil servant Matthew Clucas (born 1978), Australian rules footballer Sam Clucas (born 1990), English footballer Seanan Clucas (born 1990), Northern Irish footballer