The Eyalet of Yemen (Ottoman Turkish: ایالت یمن; Eyālet-i Yemen) was an eyalet of the Ottoman Empire.
In 1516, the Mamluks of Egypt annexed Yemen; but in the following year, the Mamluk governor surrendered to the Ottomans, and Turkish armies subsequently overran the country. They were challenged by the Zaidi Imam, Qasim the Great (r.1597–1620), and by 1636, the Zaydi tribesmen had driven the Ottomans out of the country completely.
From then until the 19th century, the Ottomans retained control only of isolated coastal areas, while the highlands generally were ruled by the Zaidi Imams. In the 1830s, aided by the collapse of the Zaidi Imamate due to internal division and the adoption of modern weaponry after the Crimean War, the Ottomans regained control of northern Yemen. It was then created as a sanjak of the Eyalet of Habesh, until it was established as an eyalet of its own in circa 1849.
Governors of the eyalet:
Sanjaks of the Eyalet in the mid-19th century:
- Sanjak of Mokha
- Sanjak of Eharish (Abu `Arish?)
- Sanjak of Massu