Deylam County (Persian: شهرستان دیلم) is a county in Bushehr Province in Iran. The capital of the county is Bandar Deylam. At the 2006 census, the county's population was 29,079, in 6,362 families. The county is subdivided into two districts: the Central District and Imam Hassan District. The county has two cities: Bandar Deylam and Imam Hassan.