- Khoy is a city in the West Azerbaijan Province of Iran. It is located in the northwest of the country and is situated near the borders of Turkey and Armenia. Khoy has a population of approximately 200,000 people and is known for its historical sites, including the Khoy Castle, Khoy Caravanserai, and Khoy Grand Mosque. The city has a rich cultural heritage and is home to several ethnic groups, including Kurds and Azerbaijanis. It also has a university, Khoy University, which offers various academic programs to students.