Isogai (written: 磯貝, 磯谷 or 礒貝) is a Japanese surname. Notable people with the surname include:
- Hajime Isogai (磯貝 一, 1871–1947), Japanese judoka
- Hiromitsu Isogai (礒貝 洋光, born 1969), Japanese footballer
- Rensuke Isogai (磯谷 廉介, 1886–1967), Japanese general
- Simon Isogai (磯貝 サイモン, born 1983), Japanese singer and musician
- Yorihide Isogai (磯貝 頼秀, born 1940), Japanese sport wrestler
Fictional characters
edit- Yūma Isogai (磯貝 悠馬), a character in the manga series Assassination Classroom
See also
edit- 8251 Isogai, a Mars-crossing asteroid