Abdanan () is a city in the Central District of Abdanan County, Ilam province, Iran. It serves as capital of both the county and the district.
The city is populated by Kurds with a Luri minority.
At the time of the 2006 National Census, the city's population was 21,662 in 4,618 households. The following census in 2011 counted 22,901 people in 5,536 households. The 2016 census measured the population of the city as 23,946 people in 6,653 households.