The Roman Catholic Diocese of Lucena (Latin: Dioecesis Lucenensis) is a Roman Rite diocese of the Latin Church of the Catholic Church in the Philippines. The diocese was erected in 1950 from the Archdiocese of Lipa and remains suffragan to the Archdiocese of Lipa. Two dioceses have been split off from Lucena the Diocese of Boac in 1977 and the Diocese of Gumaca in 1984. The current bishop is Emilio Z. Marquez appointed in 2003.