Yamaguchi

Yamaguchi may refer to:

People

 * Yamaguchi (surname), the 14th most popular Japanese surname, including a list of people.

Places

 * Yamaguchi Prefecture, the westernmost prefecture of Honshū island of Japan
 * Yamaguchi (city), capital of Yamaguchi Prefecture
 * Yamaguchi Station (Yamaguchi), a JR West railway station, located in the center of Yamaguchi-shi
 * Shin-Yamaguchi Station, a railway station in Yamaguchi-shi (Sanyō Shinkansen line)
 * Yamaguchi, Nagano, a village in Nagano Prefecture

Fiction

 * Kumiko "Yankumi" Yamaguchi, the character played by Yukie Nakama in Gokusen, a Japanese TV show
 * Yamaguchi-sensei, a doctor in the manga/anime series Fighting Spirit
 * U.S.S. Yamaguchi, an Ambassador Class Federation starship in the Star Trek franchise
 * Yamaguchi Digital Pets, a fictional digital pets company mentioned in Fanboy & Chum Chum
 * Yamaguchi Tadashi, a member of the Karasuno volleyball club in the manga/anime series Haikyu!!

Other uses

 * Yamaguchi Bank, a major regional bank in Japan, primarily in the Yamaguchi prefecture
 * Yamaguchi Bicycles, a custom bike frame builder in Rifle, Colorado
 * Yamaguchi Broadcasting (later named KRY), a Japanese television and radio broadcasting company
 * Yamaguchi Dam (China), a dam in northwest China
 * Yamaguchi Dam (Nagano), a dam in Nagano Prefecture, Japan
 * Yamaguchi Prefectural University
 * Yamaguchi Ube Airport
 * Yamaguchi University
 * Yamaguchi-gumi, a yakuza group
 * 15841 Yamaguchi, an asteroid named for the Japanese prefecture
 * Sweden v. Yamaguchi
 * Yamaguchi esterification, a chemical reaction
 * Shankou (disambiguation), the Chinese equivalent