Persian Iraq (Persian: عراق عجم; Arabic: عراق العجم), also spelled Persian Irak, is a historical term for the central-western region of Iran, including cities such as Isfahan, Ray, Qazvin, and Kashan. From the 11th to 19th centuries, the name Iraq referred to two neighbouring regions: Arabic Iraq (ʿIrāq-i ʿArab) and Persian Iraq (ʿIrāq-i ʿAjam). Arabic Iraq corresponded with ancient Babylonia (now central-southern Iraq), while Persian Iraq corresponded with ancient Media (now central-western Iran). The two regions were separated by the Zagros Mountains.
Later, until the beginning of the 20th century, the term Iraq in Iran was used to refer to a much smaller region south of Saveh and west of Qom. This region was centered by Sultanabad, which was renamed later as Arāk.