Tiancunlu Subdistrict () is a subdistrict on the southwest of Haidian District, Beijing, China. It borders Sijiqing Town in the north, Shuguang and Balizhuang Subdistricts in the east, Yongdinglu Subdistrict, Wanshoulu Subdistrict and Laoshan Subdistrict in the south, and Bajiao Subdistrict in the west. As of 2020 it had a population of 108,088.
The subdistrict was established in 2000, and was named for the Tiancun () Road that passed through it.
In the year 2021, Tiancunlu Subdistrict covered a total of 27 communities: