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 "first among equals" of the Eastern Orthodox Communion, or
- the Church of Greece, which has been autocephalous since 1833, or
- any Eastern Orthodox church that uses a Greek liturgy, including
- the Orthodox Church of Alexandria,
- the Orthodox Church of Antioch,
- the Orthodox Church of Jerusalem,
- the Orthodox Church of Cyprus,