The Central District of Borkhar County () is in Isfahan province, Iran. Its capital is the city of Dowlatabad.
After the National Census of 2006, Borkhar District was separated from Borkhar and Meymeh County in the establishment of Borkhar County, which was divided into two districts of two rural districts each, with Dowlatabad as its capital. After the 2011 census, the village of Sin was elevated to the status of a city.
At the time of the 2011 census, the district's population was 85,293 people in 24,665 households. The 2016 census measured the population of the district as 97,678 inhabitants in 29,858 households.