Family name Choshan (Choshan 
) , throughout the world, is a common last name. The family name Choshan is characteristic of Eastern Asia, particularly Japan, where it is quite a common surname.
Ko, Shozo, Seiji, Akira, Akiko, Bunyu, Kaneo, Kazuo, Kaoru, Kenji, Keiji, Kunio, Genji, Jinan, Jitsu, Tamio, Takao, Takeo, Tadao, Tomio, Tokuo, Teruo, Shoji, Shuji, Shiro, Sadao, To, Ei, Yo, Ken, Kei, Kun, Iwa, Akio, Kozo, Koji, Teizo, Goro, Toru, Eiji, Eiyu, Eiwa, Ikuo, Ippu, Yuji, Masao, Morio, Mikio, Jiro, and Norio