Ayaz-Kala is an archaeological site in Ellikqala District, Karakalpakstan, in northern Uzbekistan, built between the 4th century BCE and the 7th century CE. Situated on a hilltop overlooking the Kyzylkum Desert, the site encompasses the ruins of an ancient Khorezm fortress.

The Desert castles of ancient Khorezm, traditionally known as Elliq Qala, are a collection of desert fortresses in Karakalpakstan in Uzbekistan. They are included on UNESCO’s Tentative List for World Heritage Site status as the Desert Castles of Ancient Khorezm.