The Central District of Fereydunkenar County () is in Mazandaran province, Iran. Its capital is the city of Fereydunkenar.
In 2007, Fereydunkenar District was separated from Babolsar County in the establishment of Fereydunkenar County, which was divided into two districts of two rural districts each, with Fereydunkenar as its capital and only city at the time.
At the time of the 2011 National Census, the district's population was 44,814 people in 13,550 households. The 2016 census measured the population of the district as 46,703 inhabitants in 15,536 households.