Tokyo Metropolitan Koyamadai High School (東京都立小山台高等学校, Tōkyō Toritsu Koyamadai Kōtōgakkō) is a Japanese high school founded in 1922 as the Tokyo Eighth Middle School or Tokyo Eighth Junior High School (東京府立第八中学校, Tōkyō Furitsu Daihachi Chūgakkō). It was well known in the 1950s and 1960s for the large proportion of graduates who gained admission to the most prestigious school—Tokyo Institute of Tec
hnology; though it suffered a decline during the 1970s, as of 2004 it once again gained its popularity as it received the designation of the prior assistance from the Tokyo Metropolitan Government.