Prince Oousu (Oousu no Mikoto) appeared in the Kiki ("Kojiki" [A Record of Ancient Matter] and the "Nihonshoki" [Chronicles of Japan]) as an Imperial family (royal family) during the Kofun (tumulus period) period in Japan.
大碓皇子（おおうすのみこ）は記紀に伝えられる古墳時代の皇族（王族）。