SOF may refer to: Science Olympiad Foundation, based in New Delhi, India Sea of Faith, a Christian liberal philosophical movement Sea of Faith (TV series), by the BBC Sofia Airport, Bulgaria (IATA airport code) Soldier of Fortune (disambiguation) Sound-on-film, technology that stores a movie's soundtrack on the film Special operations forces, military and police units Start of frame delimiter, in computer networks data transmission Statement of Facts, a report of a ship's stay in port Stretton-on-Fosse, a village in Great Britain Student of Fortune, an online tutoring company Superior orbital fissure, a foramen in the skull Special Operations Force (Singapore), Singapore Police