Iwan of Khosrow is the most prominent monument of the Sassanid Empire in Ctesiphon, located in present-day Iraq.

Ctesiphon was an ancient city, located on the eastern bank of the Tigris River, about 35 kilometers southeast of Baghdad in modern-day Iraq. This city was the royal capital of ancient Iran during the Parthian and Sassanid eras for more than six hundred years.