Marvdasht County (Persian: شهرستان مرودشت) is a county in Fars Province in Iran. The capital of the county is Marvdasht. At the 2006 census, the county's population was 294,621, in 69,244 families. The county is subdivided into four districts: the Central District, Kamfiruz District, Dorudzan District, and Seyyedan District. The county has four cities: Marvdasht, Kamfiruz, Seyyedan, and Ramjerd.