Leontius (disambiguation)

Leontius or Leontios (died 706) was a Byzantine emperor 695–698 under the regnal name Leo.

Leontius or Leontios may also refer to:

• Leontius (died 70–79), of Leontius, Hypatius and Theodulus
• Leontius of Caesarea (died 337), bishop of Caesarea and saint
• Leontius of Antioch or Leontius the Eunuch (4th century), Patriarch of Antioch 344–358
• Leontius of Autun (died c. 430), bishop of Autun and saint
• Leontius of Trier (died 446), bishop of Trier
• Leontius, Bishop of Magnesia (fl. 451)
• Leontius of Vanand (died 455), namesake of the Leontine martyrs
• Leontius of Fréjus (died 488), bishop of Fréjus and saint
• Leontius (usurper) (died 488), Byzantine usurper 484–488, sometimes Leontius I
• Leontius of Byzantium (485–543), Byzantine theological writer
• Leontius I of Bordeaux, Archbishop of Bordeaux after 520
• Leontius II of Bordeaux, Archbishop of Bordeaux 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), bishop of Neapolis
• Leontius (general under Phocas) (7th-century), Byzantine general
• Łewond (fl. late 8th century), Armenian priest and historian
• Leontius of Damascus (fl. late 8th century), Syrian monk and writer
• Leontius of Bulgaria, Patriarch of Bulgaria c. 918 – c. 927
• Leontius I of Jerusalem, Patriarch of Jerusalem 911–928
• Leontius of Alexandria (11th century), Greek Patriarch of Alexandria 1052–1059
• Leontius of Ruisi (11th century), Georgian chronicler
• Leontius of Rostov (c. 1016 – c. 1073), Russian Orthodox bishop and saint, feast day May 23
• Leontius II of Jerusalem (died 1190), Patriarch of Jerusalem 1170–1190
• Leontius of Constantinople (died after 1190), Ecumenical Patriarch of Constantinople 1189
• Leontius Pilatus (died 1366), Greek Calabrian scholar
• Leontius of Monemvasia and Achaia (1377–1452), Greek Orthodox ascetic and saint
• Leontios Machairas (c. 1380 – after 1432), historian in Cyprus
• Leontius Pełczycki (died 1595), Orthodox and Uniate bishop in Lithuania
• Leontius, Metropolitan of Belgrade, Metropolitan of Belgrade 1801–1813
• Leontius von Wimpffen of Tsarevo (1873–1919), Russian Orthodox bishop of Yenotayevka and hieromartyr
• Leontios of Cyprus (1896–1947), Archbishop of Cyprus
• Leontius Turkevich (1876–1965), Metropolitan of the North American Diocese of the Russian Orthodox Church 1950–1965
• Leontius Stasievich (1884–1972), Russian Orthodox archimandrite and New Confessor
• Leontios Chatziapostolou (1894–1980), Greek lawyer and politician
• Leontios Petmezas (born 1965), Greek contemporary theorist, art historian, book critic, author, and journalist