The Central District of Delfan County () is in Lorestan province, Iran. Its capital is the city of Nurabad.
After the 2011 National Census, Khaveh-ye Jonubi and Khaveh-ye Shomali Rural Districts were separated from the district in the formation of Khaveh District. After the 2016 census, Mirbag-e Jonubi and Mirbag-e Shomali Rural Districts were separated from the Central District in forming Mirbag District.
At the time of the 2006 census, the district's population was 113,787 in 24,683 households. The following census in 2011 counted 122,324 people in 30,447 households. The 2016 census measured the population of the district as 104,533 inhabitants in 29,291 households.