The Revolutionary Command Council was the twelve-person governing body that ruled the Libyan Arab Republic after the 1969 Libyan coup d'état by the Free Officers Movement, which overthrew the Senussi monarchy of King Idris I. The council's chairman was Muammar Gaddafi, who had the most influence and served as Libya's de facto head of state as Revolutionary Chairman of the Libyan Arab Republic and commander-in-chief of the armed forces. It was ideologically Arab nationalist, republican, anti-imperialist and pan-Arabist.

Muammar Gaddafi became the de facto leader of Libya on 1 September 1969 after leading a group of young Libyan Army officers against King Idris I in a bloodless coup d'état. After the king had fled the country, the Revolutionary Command Council (RCC) headed by Gaddafi abolished the monarchy and the old constitution and established the Libyan Arab Republic, with the motto "freedom, socialism and unity". The name of Libya was changed several times during Gaddafi's tenure as leader. From 1969 to 1977, the name was the Libyan Arab Republic. In 1977, the name was changed to Socialist People's Libyan Arab Jamahiriya. Jamahiriya was a term coined by Gaddafi, usually translated as "state of the masses". The country was renamed again in 1986 as the Great Socialist People's Libyan Arab Jamahiriya, after the United States bombing that year.