The Central District of Gachsaran County () is in Kohgiluyeh and Boyer-Ahmad province, Iran. Its capital is the city of Dogonbadan.
At the time of the 2006 National Census, the district's population was 109,458 in 24,242 households. The following census in 2011 counted 118,022 people in 30,136 households. The 2016 census measured the population of the district as 123,370 inhabitants in 34,089 households.