Shiyuan Subdistrict () is a subdistrict located inside of Shunyi District, Beijing, China. It borders Shengli and Guangming Subdistricts in its north, Renhe Town in its east and south, and Wangquan Subdistrict in its west. According to the 2020 census, Shiyuan Subdistrict was home to 68,302 people.
As of 2021, Shiyuan Subdistrict was divided into 16 residential communities. They are listed as follows: