Kōichi Nakano
Kōichi Saitō
Kōichi Mashimo
Kōichi Toyama
Kōichi Tōhei
Kōichi Satō
Kōichi Wakata
Kōichi Chigira
Koichi Domoto
Kōichi Okada
Kōichi Hayashida
Kōichi Sugiyama (football)
Kōichi Kishi
Kōichi Morita (compositeur)
Kōichi Yamamoto
Kōichi Itagaki
Kōichi Tanaka
Kōichi Sugiyama
Koichi Fukaura
Kobayashi Koichi
Kōichi Tani
Kōichi Ishii
Kōichi Miura
Kōichi Hagiuda
Kōichi Nakamura
Kōichi Kido
Kōichi Yamadera
Koichi Kawai (1886-1955)
Kōichi Morishita
Koichi Fukuda
Koichi Wajima
Koichi Hashiratani
Koichi Misawa
Koichi Kudo
Koichi Oita
Koichi Kawai
Koichi Zenigata
(14445) Koichi
Koichi Muramatsu
Kōichi Isoda
Kōichi Taira
Kōichi Saitō (photographe)
Fujii Kōichi
Kōichi Shiozawa
Kōichi Saitō (réalisateur)
Kōichi Imaizumi