The Central District of Arsanjan County () is in Fars province, Iran. Its capital is the city of Arsanjan.
At the time of the 2006 National Census, the district's population was 40,916 in 9,800 households. The following census in 2011 counted 41,297 people in 11,189 households. The 2016 census measured the population of the district as 42,719 inhabitants in 12,876 households.