Koishikawa Secondary Education School (東京都立小石川中等教育学校, Tōkyō-toritsu Koishikawa Chūtōkyōikugakkō) is a public day school established by the Tokyo Metropolitan Government. The campus is located in the Bunkyō district of Tokyo, Japan. It is a combined junior high school (students study for 3 years) and senior high school (also 3 years).