John VIII

John VIII may refer to:

• Pope John VIII, Pope from 872 to 882
• Antipope John VIII, antipope in 844
• Patriarch John VIII of Constantinople, Patriarch from 1064 to 1065
• John VIII Palaiologos (1392–1448), Byzantine Emperor
• John VIII, Count of Harcourt, 1398-1424
• John VIII, Count of Vendôme, 1426-1477
• John VIII, Archbishop of Antivari, d. 1571
• John VIII, Count of Nassau-Siegen, 1583-1638
• The mythical Pope Joan, in some versions of her legend

See also

• John 8, the eighth chapter of the Gospel of John