The Diocese of Ourense (Latin: Dioecesis Auriensis) is one of five dioceses of the Roman Catholic Church in Galicia, northwestern Spain. The Bishop of Ourense has his cathedra (Latin, "chair") in the Catedral de la Virgen Madre de los Milagros in Ourense and his jurisdiction covers all the 28 districts and 735 parishes of the Province of Ourense.