Lortie is a French surname. Notable people with the surname include:
Andrew Lortie, French theologian Bernard Lortie (born 1951), Canadian terrorist Denis Lortie (born 1959), Canadian spree killer Joseph Arthur Lortie (1869–1958), Canadian physician Léon Lortie (1902–1985), Canadian chemist Louis Lortie (born 1959), Canadian pianist Marc Lortie (born 1948), Canadian diplomat