The Central District of Nik Shahr County () is in Sistan and Baluchestan province, Iran. Its capital is the city of Nik Shahr.
At the time of the 2006 National Census, the district's population was 50,842 in 10,144 households. The following census in 2011 counted 61,117 people in 14,161 households. The 2016 census measured the population of the district as 66,716 inhabitants in 16,742 households.