Peter McDonald may refer to:
Peter J. McDonald (1912–1971), Canadian politician Peter McDonald (critic) (born 1962), Northern Irish poet and academic Peter McDonald (actor) (born 1972), Irish stage and screen actor Peter McDonald (artist) (born 1973), Japanese/English artist Peter McDonald (demographer) (born 1946), Australian demographer Peter McDonald (cyclist) (born 1978), Australian cyclist Peter McDonald (footballer) (1924–2022), Irish footballer Peter McDonald (MP) (1836–1891), Irish member of parliament Peter D. McDonald, professor of English
See also Peter MacDonald (disambiguation)