Sir Peter Leslie Charles Barter, GCL, OBE (born 26 March 1940) was Minister for Health and Bougainville Affairs in the Papua New Guinean Government and is active in the reconciliation movement in Bougainville.
He established the Melanesian Foundation in 1980, a not-for-profit organisation that invests in remote communities that have been hospitable to tourists.
He was born in Sydney and attended Newington College (1952-1955) before training as a commercial fixed wing and helicopter pilot and flying for Qantas.He was knighted in the 2001 New Year's Honours, on the recommendation of the Papua New Guinea government.