| Native Name: | Turkish, Ottoman (1500-1928);: ولايت بوسنی (Ottoman Turkish) Vilâyet-i Bosna Bosanski vilajet (Serbo-Croatian) |
| Common Name: | Bosnia Vilayet |
| Conventional Long Name: | Bosnia Vilayet |
| Subdivision: | Vilayet |
| Nation: | the Ottoman Empire |
| Life Span: | 1867–1878[1] |
| Event Start: | Vilayet Law |
| Year Start: | 1867 |
| Event End: | Bosnian Crisis |
| Year End: | 1908 |
| Event1: | Treaty of Berlin |
| Date Event1: | 1878 |
| P1: | Bosnia Eyalet |
| S1: | Austro-Hungarian rule in Bosnia and Herzegovina |
| Flag P1: | Flag of the Ottoman Empire (1844–1922).svg |
| Flag S1: | Flag of Bosnia (1908-1918).svg |
| Image Map Caption: | The Bosnia Vilayet after the Congress of Berlin |
| Capital: | Sarajevo |
| Coordinates: | 43.8667°N 43°W |
| Today: | Bosnia and Herzegovina Montenegro |
| Stat Year1: | 1879 |
| Stat Area1: | 46000 |
| Stat Pop1: | 1,158,440 |
| Footnotes: | Sources for population;[2] area |
The Bosnia Vilayet (Serbo-Croatian: Bosanski vilajet/Vilajet Bosna) was a first-level administrative division (vilayet) of the Ottoman Empire, mostly comprising the territory of the present-day state of Bosnia and Herzegovina, with minor parts of modern Montenegro. It bordered Kosovo Vilayet to the south. Before the administrative reform in 1867, it was called the Bosnia Eyalet. In the late 19th century it reportedly had an area of 17900sqmi.[3]
It effectively ceased to exist as an Ottoman province after the Austro-Hungarian campaign in Bosnia and Herzegovina in 1878, although it formally existed for thirty more years until 1908, despite being governed by Austria-Hungary. This excluded Old Herzegovina, which was ceded to the Principality of Montenegro in 1878. In 1908, during the Bosnian Crisis, Austria-Hungary formally annexed it into its own territory.
Sanjaks of the Vilayet:[4]
Bosnian language was used as the second official language of this vilayet.[5] [6]