Matsunagachō (松永町?), officially Kanda-Matsunagachō (神田松永町?), is a district of Chiyoda, Tokyo, Japan. As of April 1, 2007, its population is 80. Its postal code is 101-0023.
Kanda-Matsunagachō is located on the northeastern part of Chiyoda. It borders Akihabara, Taitō to the north; Taitō, Taitō and Kanda-Izumichō, Chiyoda to the east; Kanda-Sakumachō to the south; Kanda-Hanaokachō to the southwest; and Kanda-Aioichō and Kanda-Neribeichō to the west.
While no station is located within Matsunagachō, the Akihabara Station is located to the south of the district.