Heshan Subdistrict () is a subdistrict and the seat of Heshan District in Yiyang Prefecture-level City, Hunan, China. The subdistrict was reformed through the amalgamation of Longguangqiao Township () and the former Heshan Subdistrict on November 26, 2015. It has an area of with a population of 145,500 (as of 2010 census).