Marion is a surname. Notable people with the surname include:

Anne Windfohr Marion (1938–2020), American rancher and business executive Brock Marion (born 1970), American retired National Football League player Don Marion Davis (1917–2020), American child actor Francis Marion (1795), army officer during the American Revolutionary War, known as the Swamp Fox Jean-Luc Marion (born 1946), French historian of philosophy, phenomenologist and Roman Catholic theologian Jerry Marion (born 1944), American National Football League player John L. Marion (1933–2026), American auctioneer, philanthropist and Chairman of Sotheby's from 1975 to 1994 J. Paul Marion (1927–2023), Canadian politician Marty Marion (1917–2011), American Major League Baseball player and manager Paul Marion (actor) (1915–2011), American actor Paul Marion (politician) (1899–1954), French journalist and Vichy French Minister of Information Pierre Marion (1921–2010), French secret service chief Shawn Marion (born 1978), American former National Basketball Association player William Jackson Marion (1849–1887) American man wrongfully executed for murder