Yamauchi or Yamanouchi (やまうち or やまのうち, lit. "inside mountains") is a Japanese surname. Either name is written in kanji as 山内 while Yamanouchi can also be written as 山ノ内.
Notable people with this surname include:
Yamanouchi Toyoshige, 15th feudal lord of the Tosa domainYamauchi Kazutoyo, first feudal lord of the Tosa domainKenji Yamanouchi, eponymous founder of Yamanouchi Pharmaceutical Co., now part of Astellas PharmaEdwin M. Yamauchi, historian and biblical scholarFusajiro Yamauchi, founder of NintendoSekiryo Yamauchi (born Sekiryo Kaneda), second president of Nintendo, son-in-law of Fusajiro YamauchiHiroshi Yamauchi, third president of Nintendo, grandson of Fusajiro YamauchiGoiti Yamauchi, Japanese-Brazilian mixed martial artistKazunori Yamauchi, creator of the Gran Turismo videogame seriesMara Yamauchi, British long-distance runnerWakako Yamauchi, American writerTetsu Yamauchi, Japanese bass guitarist for the bands Free and The FacesOther uses:
Yamanouchi, Nagano, a town in the Shimotakai District, Nagano Prefecture, JapanYamauchi, Saga, a former town of Kishima District, Saga Prefecture, Japan