Ken'ichi Yamamoto
Ken'ichi Yamamoto is the name of the following people:
- Yamamoto Ken'ichi (engineer) (1922–2017), Japanese automotive engineer and manager
- Yamamoto Ken'ichi (cross-country skier) (born 1922), Japanese cross-country skier
- Ken'ichi Yamamoto (Yakuza) (1925–1982), Japanese member of the Yamaguchi-gumi
- Ken'ichi Yamamoto (author) (1956-2014), Japanese author
- Ken'ichi Yamamoto (martial artist) (* 1976), Japanese mixed martial arts fighter