The Vilayet of Trebizond (Ottoman Turkish: ولايت طربزون, romanized: Vilâyet-i Ṭrabzōn; French: Vilayet de Trébizonde) was a first-level administrative division (vilayet) in the north-eastern part of the Ottoman Empire, corresponding to the area along the eastern Black Sea coastline and the interior highland region of the Pontic Alps.
At the beginning of the 20th century, it reportedly had an area of 12,082 square miles (31,290 km), while the preliminary results of the first Ottoman census of 1885 (published in 1908) gave the population as 1,047,700. The accuracy of the population figures ranges from "approximate" to "merely conjectural" depending on the region from which they were gathered.
