Khoy, Khoi (both: khō'ē) [key]or Khvoy (khvō'ē) [key], city (1991 pop. 137,885), West Azarbaijan prov., NW Iran. It is the trade center for a fertile, irrigated farm region that produces grain, fruit, and timber. Because of its strategic location near Turkey and the Russian Empire (later the Soviet Union), control of the city has frequently been in dispute. Khoy was attacked by Russia in 1827, occupied by Turkey in 1911, and held by the Soviet Union during World War II. Nearby, in 1514, Selim I, an Ottoman sultan, defeated Shah Ismail of Persia at the battle of Chaldiran.
Khoy (خوی in Persian and Xoy in Kurdish), also spelt Khoi or Khvoy, is a city in West Azarbaijan, Iran. It is located between Maku and Urumieh.
The region's economy is based around farming, particularly the production of fruit, grain and timber. As of 2004, the city had a population of approximately 176,300.
Control of Khoy has been disputed, having previously been attacked by Russia in 1827 and Turkey in 1911. During World War II, the city was under the control of the Soviet Union.
The city's population are Azaris. .
Another explenation for the name originates from the shape of this city, because it is in the shape of hole and it is next to "Avrin" mountain