The Eyalet of Silistra or Silistria[3] (Ottoman Turkish: ایالت سیلیستره; Eyālet-i Silistre),[4] later known as Özü Eyalet (Ottoman Turkish: ایالت اوزی; Eyālet-i Özi)[4] meaning Province of Ochakiv was an eyalet of the Ottoman Empire along the Black Sea littoral and south bank of the Danube River in southeastern Europe.

Around 1599, it was expanded and raised to the level of an eyalet likely as a benefit to its first governor-general (beylerbeyi), the khan of Crimea.

[citation needed] It was centered on the regions of Dobruja, Budjak (Ottoman Bessarabia), and Yedisan and included the towns of Varna, Kustendja (Constanța), Akkerman (Bilhorod-Dnistrovskyi), and Khadjibey (Odesa) with its capital at the fortresses of Silistra (now in Bulgaria) or Özi (now Ochakiv in Ukraine).

In the late 17th and early 18th centuries, a series of Russo-Turkish Wars truncated the eyalet in the east with Russia eventually annexing all of Yedisan and Budjak to the Danube by 1812.

With Ottoman administrative reforms of 1864 the Silistra Eyalet was reconstituted as the Danube Vilayet.