Jianguomen Subdistrict () is a subdistrict located in the eastern portion of the Dongcheng District, Beijing, China. It contains 9 residential communities within its 2.7 km<sup>2</sup> area, and as of 2020 its total population is 33,094.
The subdistrict is named after the Jianguomen, a gate on the eastern side of Beijing city wall that once stood in this region.
In 2021, there are 9 communities within the subdistrict: