Greatrex is a surname, shared by:

John Greatrex (born 1936), English cricketer Neil Greatrex (1951–2019), British miners' union president Stan Greatrex (1911–1986), motorcycle speedway rider in the 1930s Tim Greatrex, British television executive Tom Greatrex (born 1974), British Labour Party politician

See also Greatrex Newman (1892–1984), English author, songwriter and screenwriter Greatorex Greatrakes