The Central District of Rostam County () is in Fars province, Iran. Its capital is the city of Masiri.
After the 2006 National Census, Rostam District was separated from Mamasani County in the establishment of Rostam County, which was divided into two districts of two rural districts each, with Masiri as its capital and only city at the time.
At the time of the 2011 census, the district's population was 28,101 people in 7,306 households. The 2016 census measured the population of the district as 27,079 inhabitants in 7,840 households.