Throughout the world, Chugen (Chugen 
) is a very rare epicene first name. The first name Chugen is habitual in Southern Asia, particularly India, where it is an extremely rare epicene name. Much more frequently, Chugen is the last name as well as the forename.
Ko, Maina, Masao, Mikio, Sadao, Shiro, Shuji, Shuzo, Showa, Shoji, Shozo, Sumio, Seiji, Seisu, Akira, Kaneo, Kazuo, Kachi, Kaoru, Komyo, Kokki, Kenji, Uigo, Yuji, Yoko, Ichi, Go, To, Ho, Yo, Yu, Man, Kun, Kin, Kyu, Ryo, Keiji, Iwa, Akio, Koji, Riji, Gaku, Goro, John, Jiro, Toru, Eiji, Eiyu, Shun, and Keizo