Ouchi or Ōuchi may refer to:
Geography Ouchi, Hubei (), a town in Gong'an County, Jingzhou, Hubei, China
Japan Ōuchi, Akita, a town now merged into Yurihonjō, Akita Ouchi, Saga, a town now merged into Karatsu City, Saga Ōuchi-juku, a post station in Japan's Edo period
People Ōuchi clan, powerful and important family in Japan during the reign of the Ashikaga shogunate in the 12th to 14th centuries Haruto Ouchi (born 2002), Japanese curler , Japanese photographer Hisashi Ouchi, technician involved in the 1999 Tokaimura nuclear accident Keigo Ōuchi (1930–2016), Japanese politician Ōuchi Hyōei, Japanese economist , Japanese former professional shogi player William G. Ouchi (born 1943), American professor and author in the field of business management Issei Ouchi, (born 2000) Japanese footballer
Judo techniques Ouchi gaeshi Ōuchi gari
See also Ouchi Station Ouchy, a lakeside resort in Switzerland