Sir Bryan George Williams KNZM MBE (born 3 October 1950) is a former New Zealand rugby union footballer and former coach of the Samoan national rugby team.
Williams was born in Auckland, New Zealand in 1950. His father was Samoan, and his mother a Rarotongan of Samoan descent. He was educated at Mt Albert Grammar School, where he started his rugby career. He became an All Black in 1970 as a wing and distinguished himself in the 1970 South African Rugby Tour where he was a sensation, scoring 14 tries in his 13 appearances and in the international series he scored in each of the first and fourth Tests. This was during apartheid, so with his parentage he was only able to tour after honorary white status was granted.

Williams' international rugby career lasted from 1970 to 1978 in which he played 113 matches (including 38 international Tests) and scored 66 tries in all matches as an All Black (ten tries in Tests), which was a record until beaten by John Kirwan.