Leontius (disambiguation)

Leontius or Leontios (died 705) was a Byzantine emperor.

Leontius or Leontios may also refer to:


 * Leontius of Antioch or Leontius the Eunuch (4th century), Patriarch of Antioch 344–358
 * Leontius (usurper) (died 488), Byzantine usurper
 * Leontius of Byzantium (485–543), Byzantine theological writer
 * Leontius II (archbishop of Bordeaux) (r. 542–564)
 * Leontius (archbishop of Lyon) (early 6th century)
 * Leontius of Jerusalem (6th century), Byzantine theological writer historically confused with Leontius of Byzantium
 * Leontios of Neapolis (7th century), Byzantine theological writer
 * Łewond (fl. late 8th century), Armenian priest and historian
 * Leontius of Damascus (fl. late 8th century), Syrian monk and writer
 * Leontius of Alexandria (11th century), Greek Patriarch of Alexandria 1052–1059
 * Leontius of Constantinople (died after 1190), Ecumenical Patriarch of Constantinople 1189
 * Leontius Pilatus (died 1366), Greek Calabrian scholar
 * Saint Leontius of Monemvasia (1377–1452) Greek Orthodox ascetic
 * Leontius (Turkevich) (1876–1965), Metropolitan of the North American Diocese of the Russian Orthodox Church 1950–1965

In philosophy

 * Leontius son of Aglaion, an imaginary character in Plato's Republic used to convey a principle.