Kiar County (Persian: شهرستان کیار‎‎) is a county in Chaharmahal and Bakhtiari Province in Iran. The capital of the county is Shalamzar. At the 2006 census, the county's population was 51,322, in 12,550 families. The county is subdivided into two districts: the Central District and Naghan District. The county has three cities: Shalamzar, Gahru, and Naghan.