Alfred Martineau (11 November 1868 – 2 February 1940) was an English cricketer.
Alfred Martineau was educated at Uppingham School and King's College, Cambridge. A right-handed batsman and right-arm slow bowler, he played two first-class matches for Cambridge University in 1889. His brother Lionel also played first-class cricket, as did his cousins Hubert and Philip.