Look up Ostrobothnia in Wiktionary, the free dictionary.
Ostrobothnia (East Bothnia) refers to various areas in Finland:
- Ostrobothnia County, province of the Kingdom of Sweden 1634–1775
- Ostrobothnia (historical province), province of the Kingdom of Sweden before 1809
- Ostrobothnia (region), in modern Finland
- Other regions in modern Finland: