Greek Orthodox Church
The term Greek Orthodox Church can refer either to the Orthodox Church of Constantinople, headed by the Patriarch of Constantinople, who is also the head of the Eastern Orthodox Communion, or to the Church of Greece, which has been autocephalous since 1833. Both churches are members of the Eastern Orthodox Communion and therefore in full communion with each other. Greek Orthodox churches in the Americas and Australia are subject to the Constantinopolitan hierarchy. (These should not be confused with the Orthodox Church in America, which is one of the 16 autocephalous Eastern Orthodox churches, having been granted autocephaly in 1970 by the Patriarch of Moscow.)Other Orthodox churches that use Greek liturgy are sometimes called Greek Orthodox, including:
- Orthodox Church of Alexandria
- Orthodox Church of Antioch
- Orthodox Church of Jerusalem
- Orthodox Church of Cyprus
