The Central District of Rezvanshahr County () is in Gilan province, Iran. Its capital is the city of Rezvanshahr.
At the time of the 2006 National Census, the district's population was 34,160 in 8,902 households. The following census in 2011 counted 37,100 people in 10,879 households. The 2016 census measured the population of the district as 41,614 inhabitants in 13,285 households.