Diocese of Trebinje may refer to:
Roman Catholic Diocese of Trebinje, common name of the Diocese of Trebinje-Mrkan, with seat in the city of Trebinje Serbian Orthodox Diocese of Trebinje, former common name of the current Eparchy of Zahumlje and Herzegovina, when its seat was in the city of Trebinje
See also Trebinje Catholic Church in Bosnia and Herzegovina Eastern Orthodoxy in Bosnia and Herzegovina Diocese of Banja Luka (disambiguation) Diocese of Sarajevo (disambiguation) Diocese of Mostar (disambiguation)