Kahandezh (Persian: کهن‌دژ)[a] is a village in Naghan Rural District of Naghan District in Kiar County, Chaharmahal and Bakhtiari province, Iran.

[5] At the time of the 2006 National Census, the village's population was 50 in 12 households, when it was in the Central District of Ardal County.

[6] The following census in 2011 counted 33 people in 10 households,[7] by which time the rural district had been separated from the county in the establishment of Kiar County and transferred to the new Naghan District.

[8] The 2016 census measured the population of the village as 71 people in 24 households.

This Kiar County location article is a stub.