The Central District of Fanuj County () is in Sistan and Baluchestan province, Iran. Its capital is the city of Fanuj.
After the 2011 National Census, Fanuj District was separated from Nik Shahr County in the establishment of Fanuj County, which was divided into two districts of two rural districts each, with Fanuj as its capital and only city at the time.
At the time of the 2016 census, the district's population was 35,977 inhabitants in 9,175 households.