Selwyn Eric Belsham (28 September 1930 – 11 March 2016) was a New Zealand rugby league player who represented New Zealand at the 1957 World Cup. His position of preference was at Halfback. He also played cricket for Auckland. His brother Vic was also a New Zealand national rugby league team representative. Vic later became a referee, controlling his brother's team in the 1957 World Cup. Their father Alf represented Auckland in rugby union.