The Central District of Farsan County () is in Chaharmahal and Bakhtiari province, Iran. Its capital is the city of Farsan.
In 2011, Mizdej-e Sofla Rural District and the city of Junqan were separated from the district in the formation of Junqan District. Villages were separated from the Central District to form Babaheydar District. In 2013, the city of Babaheydar was transferred from the Central District to Babaheydar District, and the village of Gujan was converted to a city.
At the time of the 2006 National Census, the district's population was 90,111 in 19,878 households. The following census in 2011 counted 50,005 people in 12,935 households. The 2016 census measured the population of the district as 41,493 inhabitants living in 11,492 households.