Nankou Town () is a town situated on the northwestern corner of Changping District, Beijing, China. Bounded by part of Taihang Mountain Range in its north and west, Nankou borders Badaling and Jingzhuang Towns in its north, Chengnan Subdistrict and Shisanling Town in its east, Machikou and Liucun Towns in its south, and Ruiyunguan Township in its west. In 2020, it had 82,146 people under its administration.
The area got its name Nankou (), from a fortified pass south of Juyong Pass.
As of 2021, Nankou Town had 39 subdivisions within its borders, composed of 11 communities, and 28 villages: