The CICM Missionaries officially named as the Congregation of the Immaculate Heart of Mary (Latin: Congregatio Immaculati Cordis Mariae) abbreviated C.I.C.M, is a Catholic clerical religious congregation of Pontifical Right for men established in 1862 by the Belgian Catholic priest Theophile Verbist (1823–1868). Its members add the post-nominal letters C.I.C.M to their names to indicate membership in the congregation. Presently, their international name "CICM Missionaries" is preferred, although, in the United States, the congregation is mostly known as Missionhurst.