Chuo-ku 1丁目：103-0028, 2丁目：104-0028
千駄ヶ谷 5-32-6 大西ビル#505, Shibuya-ku
is a subway station in Tokyo, Japan, operated by the Tokyo subway operator Tokyo Metro. It is located in the wards of Chiyoda.
Both "Tameike" and "Sanno" are names of bus stops in the area. The station was originally to be named "Tameike Station" after the closer Tameike stop, but the Sanno name was added in order to satisfy Chiyoda Ward (as Tameike is associated with the Akasaka district of Minato Ward).