The largest Orthodox Church in America. Largely made up of Greek and Cypriot immigrants. Under the Patriarch of Constantinople. Services in Greek. Russians, Carpatho-Russians and a lot of converts make up its congregations.
Services are often in English.
Ukrainian Orthodox - 1 NYC Cathedral Ethnically based. Antiochian Orthodox - 1 NYC Cathedral Branch of the Orthodox Patriarchate of Antioch. Has a large Arabic membership, but also a lot of American converts. Serbian Orthodox - 1 NYC Cathedral Ethnically based branch of Serbian Orthodox Church. Not in communion with other Orthodox groups.