is a subway station in Chiyoda, Tokyo, Japan, operated by the Tokyo subway operator Tokyo Metropolitan Bureau of Transportation (Toei). The station opened on March 16, 1980.
Ogawamachi Station is served by the Toei Shinjuku Line, and is located 6.5 km from Shinjuku Station. The station is numbered "S-07". It is connected to Awajichà  Station on the Tokyo Metro Marunouchi Line and Shin-Ochanomizu Station on the Tokyo Metro Chiyoda Line via underground passages. It is also relatively close to Kanda Station on the Tokyo Metro Ginza Line (around 300 meters to the east), although it is not officially recognized as a transfer station and there is no transfer corridor between the two stations.
Ogawamachi Station has a single island platform on the forth basement ("B4F") level, serving two tracks. The platform numbers are continuous with the neighboring Awajichà  Station and are numbered platform 3 and 4.
The station opened on 16 March 1980.
In fiscal 2011, the station was used by an average of 64,205 passengers daily.
The station is located underneath Tokyo Metropolitan Route 302 (Yasukuni-dà Âri) between Tokyo Metropolitan Routes 403 (Hongà Â-dà Âri) and 405 (Sotobori-dà Âri). The area is home to many mid-rise office buildings and scattered apartment buildings. Other points of interest include: