The Central District of Khoshab County () is in Razavi Khorasan province, Iran. Its capital is the city of Soltanabad.
In 2010, Khoshab District was separated from Sabzevar County in the establishment of Khoshab County, which was divided into two districts of two rural districts each, with Soltanabad as its capital and only city at the time.
In 2019, Tabas Rural District was separated from the Central District in the formation of Now Deh-e Anqolab District.
At the time of the 2011 National Census, the district's population was 27,345 people in 8,081 households. The 2016 census measured the population of the district as 27,169 inhabitants in 8,684 households.