Guy Aghaj (, also Romanized as Gà «y ÃÂghÃÂj; also known as Gà « ÃÂghÃÂj and Gà «y ÃÂghÃÂch) is a village in Bastamlu Rural District, in the Central District of Khoda Afarin County, East Azerbaijan Province, Iran. At the 2006 census, its population was 48, in 9 families.