Miyauchi is a Japanese surname. Notable people with the surname include:Atsushi Miyauchi , Japanese actor and voice actor
Hiroshi Miyauchi , Japanese actor
Katsusuke Miyauchi , Japanese writer and activist
Kōhei Miyauchi , Japanese actor and voice actor
Masaru Miyauchi , Japanese bobsledder
Misumi Miyauchi , Japanese tennis player
Reina Miyauchi , Japanese singer
Satoshi Miyauchi , Japanese footballer
Takayuki Miyauchi , Japanese singer
Yoshihiko Miyauchi , Japanese businessman
Haruka Miyauchi, Japanese singer in GWSN
