Ecumenical Patriarchate of Constantinople
Ecumenical Patriarch · Constantinople (Istanbul) · est. 330 · No. 1 in the diptychs
The senior see of the Eastern Orthodox Church, holding a primacy of honour among the autocephalous Churches.
Primate & Hierarchs
- Ecumenical Patriarch —Bartholomew I· primate
The Ecumenical Patriarchate of Constantinople is the senior see of the Eastern Orthodox communion, whose bishop bears the title Ecumenical Patriarch and holds a primacy of honour (primus inter pares) among the heads of the autocephalous Churches. Seated historically at Constantinople (modern Istanbul), it oversees the Greek Orthodox Archdiocese of America and many of the Orthodox communities of the diaspora.
Out of communion with
- Russian Orthodox Church (Patriarchate of Moscow) (since 2018) — Constantinople's grant of autocephaly to the Orthodox Church of Ukraine.