Eastern Slavonia
- Banate of Slavonia
- Baranya (region)
- Borovo, Croatia
- Eastern Slavonia, Baranja and Western Syrmia (1995–1998)
- Erdut
- Kingdom of Slavonia
- Osijek
- Podunavlje
- SAO Eastern Slavonia, Baranja and Western Syrmia
- Slavonia
- Slavonia (disambiguation)
- Syrmia
- Trpinja
- United Nations Transitional Administration for Eastern Slavonia, Baranja and Western Sirmium
- Western Slavonia (disambiguation)