Hoboksar Mongol Autonomous County, historically known as Hefeng County, is an autonomous county for Mongols located in the middle-north of the Xinjiang Uyghur Autonomous Region in Western China. It falls under the administration of Tacheng Prefecture.
The county covers a total area of 28,784 square kilometers (11,114 square miles) and has a population of approximately 62,100 residents. Its administrative structure includes eight towns and townships along with seven farms, with Hoboksar Town serving as the county seat.