Tanghekou is a town in the northern part of Huairou District, Beijing, China. It is situated on the northern side of the district and shares borders with Labagoumen and Changshaoying Manchu Ethnic Townships to the northeast, Shicheng and Liulimiao Towns to the south, and Baoshan Town to the southwest.
The town had a total population of 5,445 as of 2020. Its name, Tanghekou, literally means "North House."