Baharestan County (Persian: شهرستان بهارستان) is a county in Tehran Province in Iran. The capital of the county is Nasim Shahr. The county has one district: the Central District. The county has two cities: Nasim Shahr and Nasirabad. The county was formed in 2011 from the Baharestan District and parts of Golestan District, from Robat Karim County.