Peter MacDonald may refer to:Peter Macdonald (1835–1923), Canadian Liberal MP for Huron East, Ontario, first elected in 1887 Peter Macdonald (1895–1961), MP for the Isle of Wight (1924–1959) Peter MacDonald, former Navajo tribal chairman Peter MacDonald (director), British director Peter Macdonald, former mayor of Manly; former independent member of New South Wales Legislative Assembly for Manly Peter MacDonald, early Linux programmer Peter MacDonald (footballer), Scottish professional football player Peter Fitzallan MacDonald (1830–1919), Member of the Queensland Legislative Assembly, Australia Peter MacDonald, former Leader of the Iona Community