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.

[1] At the beginning of the 20th century it reportedly had an area of 12,082 square miles (31,290 km2), while the preliminary results of the first Ottoman census of 1885 (published in 1908) gave the population as 1,047,700.

[3] The accuracy of the population figures ranges from "approximate" to "merely conjectural" depending on the region from which they were gathered.

[4] Rize became the center of the district due to the cession of Batumi, the former centre of the sanjak, to Russia with kaza of Artvin.

[6] During World War I eastern half of vilayet (Kazas of Görele, Vakfıkebir, Akçaabat, Trabzon, Of and Maçka with sanjaks of Lazistan and Gümüşhane) was occupied by Russian troops by summer 1916.