William Martin Banks (11 January 1925 – August 1991) was a Welsh rugby union and World Cup winning professional rugby league footballer who played in the 1940s and 1950s. He played club level rugby union (RU) for Maesteg RFC, as a scrum-half, i.e. number 9, and representative level rugby league (RL) for Great Britain, Wales, Other Nationalities, British Empire and Combined Nationalities, and at club level for Leeds, Wakefield Trinity (Heritage № 558), Huddersfield, Whitehaven and Salford, as a stand-off, or scrum-half, i.e. number 6, or 7.