Heydarabad (, also Romanized as ḨeydarÃÂbÃÂd and Haidarabad; also known as HaryilÃÂbÃÂd) is a village in Cham Chamal Rural District, Bisotun District, Harsin County, Kermanshah province, Iran. At the 2006 census, its population was 259, in 59 families.