Bitlis Vilayet was a first-level administrative division (vilayet) of the Ottoman Empire. Before the Russo-Turkish War (1877–1878) it had been part of the Erzurum Vilayet, it was then made a separate vilayet by the Sublime Porte. It was one of the six Armenian vilayets of the Empire.
- Country
- Ottoman Empire, Turkey
- Inception
- 1875