John IV
John IV is the name of the following people:
- John IV (Patriarch) († 595), 33rd Patriarch of Constantinople
- John IV (Pope) († 642), Pope
- John IV (Olomouc) († 1172), Bishop of Olomouc
- John IV (Byzantium) (1250 – after 1290), Byzantine emperor
- Johannes IV. Grübel , abbot of the Waldsassen monastery from 1323 to 1337
- John IV (Trebizond) (1403 – before April 22, 1460), Emperor of Trebizond
- John IV Beck (1516–1562), Abbot of Ebrach
- Johannes IV. Burckhardt (1538–1598), abbot of Münsterschwarzach
See also:
- Yohannes IV (1831–1889), Emperor of Ethiopia
