The Italo-Greek Byzantine Orthodox Catholic Church recognizes and accepts the following regional and local councils as authoritative:
- The Apostolic Council of Jerusalem (48-51 A.D.)
- The Council of Carthage (251 A.D.)
- The Council at Ancyra (314 A.D.)
- The Synod at Gangra (340 A.D.)
- The Council of Antioch (341 A.D.)
- The Council in Constantinople (394 A.D.)
- The Council at Carthage (419-424 A.D.)
- The Council at Constantinople (448 A.D.)
- The Council at Constantinople (861 A.D.)
- The Council and Constantinople (867 A.D.)
- The Council at Constantinople (1082 A.D.)
- The Synod of Blachernae (1157 A.D.)
- The Council in Constantinople (1166 A.D.)
- The Council at Constantinople (1285 A.D.)
- The Council at Iasi (1642 A.D.)
- The Council of Jerusalem (1672 A.D.)
- The Council at Constantinople (1772 A.D.)
- The Council at Constantinople (1819 A.D.)
- The Council at Constantinople (1872 A.D.)