In all the world, Katsumoto (Katsumoto 
) is a common boy's forename. The forename Katsumoto is habitual in Japan, where it is quite a common boy's name, and Albania, where it is a rare male name. Much less frequently, Katsumoto is the last name as well as the forename.
San, Nakano, Harada, Hirano, Fukuda, Fujita, Otsuka, Yahiro, Matsuda, Miyazawa, Shimizu, Shibata, Okamoto, Yaguchi, Katagiri, Takezawa, Tsuchiya, Nakajima, Hirotaro, Watanabe, Kobayashi, Takahashi, Kusano, Kosaka, Beqiri, Atwood, Ken, Ito, Ono, Sato, Seki, Soba, Asai, Kato, Endo, Hara, Nishimura, Hino, Ochi, Wada, Yuri, Saito, Kohei, Honda, Onuma, Okubo, Masami, Sasaki, Itoh, and Yamaguchi