Peter Garth Mander OBE (4 July 1928 – 21 June 1998) was a New Zealand yachtsman and Olympic gold medal winner.

With Jack Cropp, Mander won the 12 m2 Sharpie class at the 1956 Summer Olympics in Melbourne.

Mander then retired from competitive yachting, but made a comeback and was selected to compete in the Finn class at the 1964 Summer Olympics where he finished fourth.

[2] Mander also won two world 18-footer championships, in 1952 and 1954, as well as 16 New Zealand national yachting titles in eight different classes.

[3] In the 1992 New Year Honours, Mander was appointed an Officer of the Order of the British Empire, for services to yachting.