Mamasani County (Persian: شهرستان ممسنی‎) is a county in Fars Province in Iran. The capital of the county is Nurabad, which is located 180 kilometres from Shiraz. The people of Mamasani speak Luri language from southern Lurish dialect. At the 2006 census, the county's population (including those portions later split off to form Rostam County) was 162,694, in 35,145 families; excluding such portions, the population was 117,317, in 26,011 families. The county is subdivided into three districts: the Central District, Mahvarmilani District, and Doshman Ziari District.