Sanbanchō (三番町) is an upscale residential district of Chiyoda, Tokyo, Japan.
The district is home to the Chidorigafuchi National Cemetery, the Otsuma Women University as well as the Apostolic Nunciature.
The district borders the Tokyo Imperial Palace to the east, Nibanchō and Yonbanchō to the west, Ichibanchō to the south, and Kudanminami to the north.
Coordinates: 35°41′29″N 139°44′34″E / 35.6914°N 139.7428°E