The Central District of Kashan County () is in Isfahan province, Iran. Its capital is the city of Kashan.
At the time of the 2006 National Census, the district's population was 266,921 in 72,469 households. The following census in 2011 counted 293,996 people in 85,589 households. The 2016 census measured the population of the district as 324,501 inhabitants in 98,513 households.