Bosnia primarily refers to Bosnia and Herzegovina, a country in southeastern Europe.
Bosnia may also refer to:
- Bosnia (region), a region in southeastern Europe
- Administrative entities in the history of Bosnia and Herzegovina
- Banate of Bosnia, autonomous part of the Kingdom of Hungary
- Kingdom of Bosnia, a medieval kingdom
- Bosnia Sanjak, a province of the Ottoman Empire
- Bosnia Eyalet, a province of the Ottoman Empire
- Bosnia Vilayet, a province of the Ottoman Empire
- Condominium of Bosnia and Herzegovina, a province of the Austro-Hungarian Empire
- Socialist Republic of Bosnia and Herzegovina, constituent part of the SFR Yugoslavia
- Republic of Bosnia and Herzegovina, the main predecessor to the country before the Yugoslav wars
- Federation of Bosnia and Herzegovina, a political entity that is part of the country
- Bosnia (album), an album by Grand Funk Railroad
- "Bosnia", a song by the Cranberries from To the Faithful Departed