Jonouchi

Jonouchi (城之内) is a Japanese surname. It may refer to

People

 * Kunio Jōnouchi (ja:城之内邦雄), a Japanese professional baseball player for the Yomiuri Giants (1962–1971) and Chiba Lotte Marines (1974)
 * Missa Johnouchi (城之内 ミサ), a Japanese composer, pianist, conductor, and singer
 * Sanae Jōnouchi (城之内 早苗), a former member of the Japanese pop music group Onyanko Club

Fictional people

 * Ayame Jounouchi (城之内 綾女) of Ouran High School Host Club
 * Katsuya Jonouchi (城之内 克也) (Joey Wheeler) of Yu-Gi-Oh!
 * Sai Jounouchi of Angelic Layer