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 at ...
, main-belt asteroid
{{surname, Kiuchi
Japanese-language surnames