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The Eastern Liturgical (Orthodox) family represents one of the three great divisions of Christianity; the others are the Protestant churches and the Roman Catholic Church. The Catholic and Orthodox churches were originally united, but they parted in the 11th century, when they differed over several points of doctrine, including the supreme authority of the pope, which Orthodox Christians reject. Since the 20th century, the Catholic and Orthodox churches have made greater efforts toward reconciliation. Churches in the Eastern Liturgical family include the Greek Orthodox Archdiocese of America and the Orthodox Church in America.
Eastern Liturgical (Orthodox)
- Albanian Orthodox Diocese of America
- American Carpatho-Russian Orthodox Greek Catholic Church
- Antiochian Orthodox Christian Archdiocese of North America
- Apostolic Catholic Assyrian Church of the East, North American Diocese
- Apostolic Orthodox Catholic Church of North America
- Armenian Apostolic Church of America
- Armenian Apostolic Church, Diocese of America
- Coptic Orthodox Church
- Greek Orthodox Archdiocese of America
- Holy Eastern Orthodox Catholic and Apostolic Church in North America
- Malankara Orthodox Syrian Church, Diocese of America
- Orthodox Church in America, The
- Patriarchal Parishes of the Russian Orthodox Church in the U.S.A.
- Romanian Orthodox Episcopate of America
- Russian Orthodox Church Outside of Russia, The
- Serbian Eastern Orthodox Church for the U.S.A. and Canada
- Syriac-Greek Antiochian Orthodox Catholic Church
- Syrian Orthodox Church of Antioch
- True Orthodox Church of Greece (Synod of Metropolitan Cyprian), American Exarchate
- Ukrainian Orthodox Church of the U.S.A.
Inactive Denominations (Denomination is defunct, has been renamed or merged with another denomination, or has not reported data since 1980)
- African Orthodox Church
- Albanian Orthodox Archdiocese in America
- American Holy Orthodox Catholic Apostolic Eastern Church
- American Patriarchal Orthodox Church
- Antiochian Orthodox Archdiocese of Toledo, and Dependencies in North America
- Christ Catholic Exarchate of Americas and Eastern Hemisphere
- Church of the East and of the Assyrians
- Eastern Orthodox Catholic Church in America
- Holy Apostolic and Catholic Church of the East (Assyrian)
- Holy Orthodox Church in America (Eastern Catholic and Apostolic)
- Holy Ukrainian Autocephalic Orthodox Church in Exile
- Old Catholic Archdiocese for the Americas and Europe
- Russian Orthodox Greek Catholic Church of America
- Syro-Russian Orthodox Catholic Church
- Turkish Orthodox Church in America
- Ukrainian Orthodox Church of America
- Western Orthodox Church in America