Qarah Aghaj (Persian: قره آغاج; also Romanized as Qarah Āghāj and Qareh Āghāj; also known as Qara Agāch, Qara Aghāch, Qareh Āqāj, and Qarah Aghaj Bazar (Persian: قره آغاج بازار), also Romanized as Qarah Āghāj Bāzār and Qareh Āghāj Bāzār) is a city & capital of Charuymaq County, East Azerbaijan Province, Iran. At the 2006 census, its population was 4,157, in 936 families.