This is a list of Roman Catholic dioceses in the Balkans i.e. dioceses of the Latin Church. In Balkanic Europe, the Roman Catholic Church comprises 8 episcopal conferences, 14 ecclesiastical provinces, 31 suffragan dioceses and 1 apostolic administration. There are 5 archdioceses, 3 dioceses, and 1 apostolic vicariate that are immediately subject to the Holy See.
List of dioceses Episcopal Conference of Albania Ecclesiastical Province of Shkodër-Pult Archdiocese of Shkodër-Pult Diocese of Lezhë Diocese of Sapë
Ecclesiastical Province of Tirana-Durrës Archdiocese of Tiranë-Durrës Diocese of Rrëshen Apostolic Administration of Southern Albania
Episcopal Conference of Bosnia Ecclesiastical Province of Sarajevo Archdiocese of Vrhbosna Diocese of Banja Luka Diocese of Mostar-Duvno Diocese of Skopje Diocese of Trebinje-Mrkan
Episcopal Conference of Croatia Ecclesiastical Province of Rijeka Archdiocese of Rijeka Diocese of Gospić–Senj Diocese of Krk Diocese of Poreč and Pula
Ecclesiastical Province of Sirmio Archdiocese of Djakovo-Osijek Diocese of Požega Diocese of Srijem
Ecclesiastical Province of Split-Makarska Archdiocese of Split-Makarska Diocese of Dubrovnik Diocese of Hvar Diocese of Kotor Diocese of Šibenik
Ecclesiastical Province of Zagreb Archdiocese of Zagreb Eparchy of Križevci Diocese of Varaždin
Episcopal Conference of Greece Ecclesiastical Province of Corfu, Zakynthos and Cephalonia Archdiocese of Corfu, Zakynthos, and Cephalonia
Ecclesiastical Province of Naxos, Andros, Tinos and Mykonos Archdiocese of Naxos, Andros, Tinos and Mykonos Diocese of Chios Diocese of Crete Diocese of Santorini Diocese of Syros e Milos
Episcopal Conference of Romania Ecclesiastical Province of Bucharest Archdiocese of Bucharest Diocese of Iaşi Diocese of Oradea Mare Diocese of Satu Mare Diocese of Timişoara
Episcopal Conference of Serbia Ecclesiastical Province of Belgrade Archdiocese of Belgrade Diocese of Subotica Diocese of Zrenjanin
Episcopal Conference of Slovenia Ecclesiastical Province of Ljubljana Archdiocese of Ljubljana Diocese of Koper Diocese of Novo Mesto
Ecclesiastical Province of Maribor Archdiocese of Maribor Diocese of Celje Diocese of Murska Sobota
Immediately subject to the Holy See Archdiocese of Alba Iulia Archdiocese of Athenai Archdiocese of Bar Diocese of Nicopoli Apostolic Administration of Prizren Archdiocese of Rhodos Diocese of Sofia and Plovdiv Apostolic Vicariate of Thessaloniki Archdiocese of Zadar