Gullion is a surname. Notable people with the surname include: Allen W. Gullion (1880–1946), American Army officer Blair Gullion (1901–1959), American basketball player Edmund A. Gullion (1913–1998), American diplomat Tom Gullion (born 1965), American jazz saxophonist

See also Lough Gullion, is a lake in Northern Ireland Ring of Gullion, is a geological formation and area in County Armagh, Northern Ireland Slieve Gullion, is a mountain in the south of County Armagh, Northern Ireland