Baron John Both de Bajna was a Hungarian nobleman from the Both family, who served as, alongside Emeric Derencsényi, Ban of Croatia, Slavonia and Dalmatia in 1493. His brother, Andrew Both also acted as ban from 1504 to 1507. Lord of Sykava in 1492, John was killed in the siege of Brinje in 1493.
- Position held
- Ban of Croatia
- Citizenship
- Kingdom of Hungary
- Born
- 1450
- Died
- September 1493