The Congregation of Mary Immaculate Queen (CMRI) (Latin: Congregatio Mariae Reginae Immaculatae) is a Sedevacantist Traditionalist Catholic religious congregation that rejects the authority of the recent Popes, including Benedict XVI and Francis, and is dedicated to promoting the message of Our Lady of Fátima and devotion to the Virgin Mary according to the teachings of St.
Louis-Marie Grignion de Montfort (1673-1716), whom they regard as their spiritual founder.
Over the years, the Congregation has also been known as the Fatima Crusaders and Oblates of Mary Immaculate Queen of the Universe.