Hajj Siran (Persian: حاج سيران, also Romanized as Ḩājj Sīrān; also known as Gol Sīrān, Ḩājjī Sīrān, Hajeiseran, Ḩājjsīrān, and Khadzheseyran) is a village in Qareh Poshtelu-e Pain Rural District, Qareh Poshtelu District, Zanjan County, Zanjan Province, Iran. At the 2006 census, its population was 383, in 83 families.