Corduene (also known as Gorduene, Cordyene, Cardyene, Carduene, Gordyene, Gordyaea, Korduene, Gordian; Turkish: Karduya; Armenian: Կորճայք Korchayk; Greek: Κορδυηνή Kordyene; Hebrew:קרטיגיני ) was an ancient region located in northern Mesopotamia, present-day south-eastern Turkey and northern Iraq.
According to the 1911 Encyclopaedia Britannica, Gordyene is the ancient name of the region of Bohtan (now Şırnak Province). It is mentioned as Beth Qardu in Syriac sources and is described as a small vassal state between Armenia and Persia in the mountainous area south of Lake Van in modern Turkey Corduene must also be sought on the left bank of the Tigris.
It has been cited as the country of the Carduchians, a fertile mountainous district, rich in pasturage. The Kingdom of Gordyene emerged from the declining Seleucid Empire and for most of its history, it was a province of the Roman Empire and acknowledged the sovereignty of Rome. From 189 to 90 BC, it enjoyed a period of independence. The people of Gorduene were known to have worshipped the Hurrian sky God Teshub.
A people called the Carduchoi are mentioned in Xenophon's Anabasis. They inhabited the mountains north of the Tigris in 401 BC, living in well-provisioned villages. They were enemies to the king of Persia, as were the Greek mercenaries with Xenophon, but their response to thousands of armed and desperate strangers was hostile. They had no heavy troops who could face the battle-hardened hoplites, but they used longbows and slings effectively, and for the Greeks the "seven days spent in traversing the country of the Carduchians had been one long continuous battle, which had cost them more suffering than the whole of their troubles at the hands of the king [of Persia] and Tissaphernes put together."