Katsumoto (且元 or 勝元) is both a Japanese surname and a masculine Japanese given name meaning "victorious". Notable people with the surname include:

, deputy to the Shōgun , Japanese samurai

Fictional characters: Katsumoto, hero of the film The Last Samurai Gordon Katsumoto, detective in the remake of Magnum P.I. played by Tim Kang

See also Katsumoto, a town on Iki Island Katsumoto, a So-Cal metalcore band signed to Uprising Records