Throughout the world, Shinsan (Shinsan 
) is an extremely rare masculine forename. Much less frequently, Shinsan is the last name as well as the forename.
Abe, Kimura, Tanaka, Takeda, Nakano, Harada, Hamada, Fukuda, Fujita, Ohashi, Yamada, Shimizu, Hayashi, Yoshida, Sakamoto, Nakamura, Nakagawa, Hasegawa, Watanabe, Yamamoto, Kobayashi, Takahashi, Suzuki, Sasaki, Miyata, Ogawa, Ida, Ito, Ono, Ota, Sato, Arai, Aoki, Kato, Goto, Endo, Nishimura, Imai, Ueno, Saito, Sakai, Kondo, Nagai, Fujii, Inoue, Ishii, Ikeda, Okada, Wada, and Yamashita