Najafabad County (Persian: شهرستان نجف‌آباد‎‎) is a county in Isfahan Province in Iran. The capital of the county is Najafabad. At the 2011 census, the county's population was 300,288. The county is subdivided into two districts: the Central District and Mehrdasht District. The county has six cities: Najafabad, Alavicheh, Dehaq, Goldasht, Jowzdan, and Kahriz Sang.