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- John Kochurov
- John Krestiankin
- John Maximovitch
- John Maximovitch of Tobolsk
- John Meyendorff
- John Naukliros
- John Nehrebecki
- John Paul I
- John Paul II
- John S. Romanides
- John Scholasticus
- John Scottus Eriugena
- John Shehadie
- John Tavener
- John VIII of Rome
- John VII Grammaticus of Constantinople
- John VII of Jerusalem
- John VII of Rome
- John VII the Oxite