C
- Cathedral of Christ the Saviour (Moscow)
- Cathedral of the Dormition
- Catholicos of the East
- Catholicos-Patriarch of All Georgia
- Catholic-Orthodox joint declaration of 1965
- Celtic Orthodox Church
- Catholic Chaldean Patriarchs of Babylon
- Chaldean Catholic Church
- Chaldean Syrian Church
- Christians in Iran
- Chora Church
- Church of Greece
- Church of the Holy Apostles
- Church of the Tithes
- Church Slavonic language
- Coptic Christianity
- Coptic Catholic Church
- Coptic language
- Coptic Orthodox Church
- Cypriot Orthodox Church
- Czech and Slovak Orthodox Church
Read more about this topic: Index Of Eastern Christianity-related Articles