Judith Beatrice Bari (November 7, 1949 – March 2, 1997) was an American environmentalist and labor leader, a feminist, an anarchist and the principal organizer of Earth First! campaigns against logging in the ancient redwood forests of Northern California in the 1980s and 1990s. She also organized efforts through Earth First! – Industrial Workers of the World Local 1 to bring timber workers and environmentalists together in common cause.