Peter Johnston
Peter Johnston may refer to:
Sport
- Peter Johnston (footballer, born 1957), former Australian rules footballer for Melbourne and Geelong
- Peter Johnston (footballer, born 1959), former Australian rules footballer for Fitzroy
- Peter Johnston (rugby league, born 1963), former Canterbury, Eastern Suburbs and Newcastle player
- Peter Johnston (rugby league, born 1968), former Parramatta, South Sydney and Illawarra player
- Peter Johnston (rugby union), Australian rugby union player
- Peter Johnston (tennis), Australian tennis player