The Cathedral of Saint Vissarion of Smolyan (Bulgarian: катедрален храм „Свети Висарион Смолянски“) is an Eastern Orthodox church in Smolyan, Bulgaria, inaugurated on 2 July 2006. It is the third largest church in the country (after the Alexander Nevsky Cathedral in Sofia, and Dormition of the Theotokos Cathedral in Varna) and the largest church in southern Bulgaria.