Qareh Zia' od Din also Qarahziyaeddin (Persian:قره ضيا الدي or قره ضياءالدين) and Ghareh Ziya, is a city in the north of West Azarbaijan province of Iran, on the Aq River, a tributary of the Araxes. Its population according to the 2006 census was 22,589 . Its city calling code is 462.
