Assyrian Church
- Ancient Church of the East
- Assyrian (disambiguation)
- Assyrian Church of the East
- Assyrian Evangelical Church
- Assyrian Orthodox Church (disambiguation)
- Assyrian Pentecostal Church
- Chaldean Catholic Church
- Russian Ecclesiastical Mission in Urmia
- Syriac Catholic Church
- Syriac Christianity
- Syriac Orthodox Church