Orthodox Church

Orthodox Church may refer to:

• Eastern Orthodox Church, the second-largest Christian church in the world
• Oriental Orthodox Churches, a branch of Eastern Christianity
• True Orthodox church, a movement within Eastern Orthodox Christianity
• Orthodox Presbyterian Church, a confessional Presbyterian denomination located primarily in the United States
• Orthodox Presbyterian Church of New Zealand, a denomination formed in the 1960s led by George Mackenzie
• State church of the Roman Empire, Roman Empire's state religion after AD 380

See also

• Eastern Orthodoxy
• Eastern Christianity
• Neo-orthodoxy
• Catholic Church (disambiguation)
• Orthodox (disambiguation)
• Orthodox calendar (disambiguation)
• Orthodox Communion (disambiguation)
• Orthodoxy by country (disambiguation)
• Orthodox Catholic Church (disambiguation)
• Greek Orthodox Church (disambiguation)