Joseph Emile Patrick McMaster (16 March 1861 – 7 June 1929) was an Irish amateur cricketer and umpire who played in one retrospectively-recognised Test match for England in 1899. That was his only first-class appearance and he was never a member of any county team. He later umpired first-class matches in South Africa. He was born in Gilford, County Down, and died in London.