Qaleh-ye Kushkak () is a village in Shurab-e Tangazi Rural District of the Central District in Kuhrang County, Chaharmahal and Bakhtiari province, Iran.
At the time of the 2006 National Census, the village's population (as Shahrak-e Emam Hoseyn) was 974 in 164 households. The following census in 2011 counted 1,120 people in 260 households, by which time the village's name had been changed to Qaleh-ye Kushkak. The 2016 census measured the population of the village as 797 people in 228 households. It was the most populous village in its rural district.