Kiuchi (written: 木内 or きうち in hiragana) is a Japanese surname. Notable people with the surname include:
* (born 1969), Japanese voice actor
* (born 1960), Japanese manga artist and film director
* (1866–1925), Japanese politician
* (born 1967), Japanese novelist
* (born 1968), Japanese voice actress
* (born 1994), Japanese singer and actress
See also
*, brewery in Naka, Ibaraki Prefecture, Japan
*
5481 Kiuchi
5481 Kiuchi, provisional designation ', is a bright binary Vestian asteroid from the inner regions of the asteroid belt, approximately in diameter. It was discovered on 15 February 1990, by Japanese astronomers Kin Endate and Kazuro Watanabe a ...
, main-belt asteroid
{{surname, Kiuchi
Japanese-language surnames