Tur Abdin (Arabic: طور عبدين; Kurdish: Tor; Latin: Turabdium; Syriac: ܛܽܘܪ ܥܰܒ݂ܕܺܝܢ or ܛܘܼܪ ܥܲܒ݂ܕܝܼܢ, Ṭūr ʿAḇdīn) is a hilly region situated in southeastern Turkey, including the eastern half of Mardin Province, and Şırnak Province west of the Tigris, on the border with Syria and famed since Late Antiquity for its Christian monasteries on the border of the Roman Empire and the Sasanian Empire. The area is a low plateau in the Anti-Taurus Mountains stretching from Mardin in the west to the Tigris in the east and delimited by the Mesopotamian plains to the south. The Tur Abdin is populated by more than 80 villages and nearly 70 monastery buildings and was mostly Syriac Orthodox with a Syriac Catholic minority until the early 20th century. The earliest surviving Christian buildings date from the 6th century.
The name "Tur Abdin" is Syriac: ܛܘܪ ܥܒܕܝܢ, lit. 'Mountain of the Servants [of God]'. Tur Abdin is of great importance to the Syriac Orthodox, for whom the region used to be a monastic and cultural heartland. The Assyrian community of Tur Abdin natively refer to themselves as Sūryāyê/Sūryōyê or Sūrāyê/Sūrōyê (Syriac: ܣܘܪ̈ܝܐ), and traditionally speak a central Neo-Aramaic dialect called Turoyo.
