'''Isogai''' (written: 磯貝, 磯谷 or 礒貝) is a Japanese surname. Notable people with the surname include:
*{{Nihongo|Hajime Isogai|磯貝 一||1871–1947}}, Japanese judoka *{{Nihongo|Hiromitsu Isogai|礒貝 洋光||born 1969}}, Japanese footballer *{{Nihongo|Rensuke Isogai|磯谷 廉介||1886–1967}}, Japanese general *{{Nihongo|Simon Isogai|磯貝 サイモン||born 1983}}, Japanese singer and musician *{{Nihongo|Yorihide Isogai|磯貝 頼秀||born 1940}}, Japanese sport wrestler
==Fictional characters== *{{Nihongo|Yūma Isogai|磯貝 悠馬}}, a character in the manga series ''Assassination Classroom'' *{{Nihongo|Gendō Isogai|磯谷 ゲンドウ}}, a character in the anime series ''Little Battlers Experience WARS''
==See also== *8251 Isogai, a Mars-crossing asteroid
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Category:Japanese-language surnames