Peter John Grant (born 15 August 1984 in Durban) is a South African rugby player.
He was educated at Maritzburg College in Pietermaritzburg where he matriculated in 2002. He played at fly-half for the Western Force in Super Rugby and since 2010, for the Kobe Kobelco Steelers in Japan's Top League.
He also played 5 tests for the Springboks team.