Margaret Fox (1833–1893) and her sisters were noted 19th-century spiritualists.
Margaret Fox may also refer to: Margaret Fell (1614–1702), or Fox, Quaker leader Margaret R. Fox (1916–2006), American computer scientist Margaret Taylor Fox (1857–c. 1941), American artist Margaret Ellen Fox, American girl who disappeared in 1974 Margaret Fox (sprinter), winner of the 1997 4 × 400 meter relay at the NCAA Division I Indoor Track and Field Championships Margaret Fox (discus thrower), 9th at the 1979 AIAW Outdoor Track and Field Championships