The Central District of Ardabil County () is in Ardabil County, Ardabil province, Iran. Its capital is the city of Ardabil.
Gharbi Rural District was separated from the district in the formation of Samarin District in 2010.
At the time of the 2006 National Census, the district's population was 502,186 in 123,050 households. The following census in 2011 counted 533,495 people in 148,318 households. The 2016 census measured the population of the district as 578,237 inhabitants living in 172,862 households.