The Central District of Simorgh County () is in Mazandaran province, Iran. Its capital is the city of Kiakola.
In 2012, Kiakola District was separated from Qaem Shahr County in the establishment of Simorgh County, which was divided into two districts of two rural districts each, with Kiakola as its capital and only city at the time.
At the time of the 2016 National Census, the district's population was 12,798 inhabitants in 4,333 households.