| Daimon Station | |
| Native Name: | 大門駅 |
| Native Name Lang: | ja |
| Address: | 1-27-12 (Asakusa Line) 2-3-4 (Oedo Line) |
| Borough: | Hamamatsuchō District, Minato City, Tokyo |
| Country: | Japan |
| Map Type: | Japan Tokyo city#Japan Tokyo Bay and Boso Peninsula#Japan Tokyo#Japan |
| Map Dot Label: | Daimon Station |
| Platforms: | 2 side platforms (Asakusa Line) 1 island platform (Ōedo Line) |
| Tracks: | 4 (2 for each line) |
| Structure: | Underground |
is a subway station in Minato, Tokyo, Japan, operated by the Tokyo subway operator Toei Subway. The station is named after the Shiba Daimon or Great Gate of Shiba, located just west of the station on the road leading to the temple of Zōjō-ji.
Daimon is adjacent to Hamamatsuchō Station, which is served by JR East and the Tokyo Monorail. On the Toei lines, Daimon is called "Daimon Hamamatsucho" in certain automated announcements. The Oedo Line station, which occupies most of the space between the Asakusa Line and the JR lines, was initially planned to be called "Hamamatsucho", but ultimately adopted the name of the existing Asakusa Line station.
The Asakusa Line station has two side platforms. The Oedo Line station has one island platform.
The station was opened on 1 October 1964 as a station on the Toei Subway Line No. 1, which would later become the Asakusa Line. On 12 December 2000, service on the Oedo Line began.
In 2012,[1] the Asakusa Line station was used by an average of around 91,000 arriving and departing passengers per day,[2] while the Oedo Line station was used by an average of around 114,000.[3]