The Revolutionary Justice Organization (Munazzamat al-'Adala ath-Thawriya) is a currently inactive Lebanese Islamist group. Even at its height, it was a relatively minor entity consisting of just under 100 members. It often served as a cover for Hezbollah’s militant activities and sometimes held Western hostages. In December 1986 it claimed responsibility for the kidnapping of four university professors whom it described as spies. The group has been inactive since 1988.