is a high school in Yokosuka, Kanagawa Prefecture Japan, founded in 1907. The school is operated by the Kanagawa Prefectural Board of Education. As of 2014 the principal is .
Notable alumni
- Politician Junichirō Koizumi, 87th Prime Minister of Japan from 2001 to 2006
- Physicist Masatoshi Koshiba, Nobel Prize winner 2002
- Actor Yōsuke Kubozuka, dropout
- Actor Shunsuke Kubozuka, younger brother of Yosuke Kubozuka
- Judoka Isao Inokuma, Tokyo Olympic Gold Medalist
- Football player Hiroyuki Sakashita
- Football player Shuhei Terada
- Football player Tatsuya Suzuki
- Climatologist Atsumu Ohmura
- Ryo Hazuki from Shenmue
- Okikatsu Arao, colonel of the Imperial Japanese Army
- Takashi Saito, four-star admirals of the Japan Maritime Self-Defense Force, 2nd Joint Staff Office chief of staff
- Coroner Thomas Noguchi
- Anime designer Kazutaka Miyatake