George McMahon may refer to: George McMahon (actor) (born 1985), Irish actor George McMahon (failed assassin) (died 1970), journalist and attempted assassin George McMahon (activist) (1950–2019), patient in the Compassionate Investigational New Drug program George McMahon (politician) (1929–2019), Canadian politician in Prince Edward Island George L. McMahon (1904–1978), Canadian business and sports executive