The Central District of Namin County () is in Ardabil province, Iran. Its capital is the city of Namin.
At the time of the 2006 National Census, the district's population was 24,709 in 6,138 households. The following census in 2011 counted 26,468 people in 7,621 households. The 2016 census measured the population of the district as 25,910 inhabitants living in 7,795 households.