Samuel William Gemmell (28 August 1896 – 28 June 1970) was a New Zealand rugby union player. A loose forward, Gemmell represented Hawke's Bay at a provincial level. He played one match for the New Zealand national side, the All Blacks, out of position at hooker against New South Wales at Dunedin. His uncle, Ben Gemmell, was a New Zealand Māori representative between 1914 and 1921.