Jolgeh-ye Mazhan District () is in Khusf County, South Khorasan province, Iran. Its capital is the village of Mazhan.
In 2012, Khusf District was separated from Birjand County in the establishment of Khusf County, which was divided into two districts and five rural districts, with the city of Khusf as its capital.
At the time of the 2016 National Census, the district's population was 9,351 inhabitants in 3,166 households.