Qohestan District () is a district (bakhsh) in Darmian County, South Khorasan Province, Iran. At the 2006 census, its population was 15,295, in 4,349 families. The District has one city Qohestan which is the capital of Qohestan District. The District has two rural districts (dehestan): Fakhrud Rural District and Qohestan Rural District. References Districts of South Khorasan Province Darmian County