Surname Kouji (コウジ 
, Kouji 
, Кодзи 
) , in the entire world, is a widespread last name. The surname Kouji is characteristic of Japan, where it is a common surname, Taiwan, where it is quite a rare surname, and Morocco, where it is a rare surname. Much less frequently, Kouji is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| コウジ | Japan |
| Kouji | China, Morocco, United States, Taiwan, Japan |
| Кодзи | Russia |
Kodi, Kohji, Koike, Koji, Komichi, Komiti, Kooji, Koro, Kosuji, Kozi, Kōji, Odi, Oike, Oji, Omichi, Omiti, Onoji, Oro, Ozi, Shoji, Shōji, Syohji, Syoji, Syouji, Коро, Коуйи, Оро, كوجى, كوجي, こうじ, コゥジ, コウヂ, 光二, 光司, 光治, 功治, 口吉, 口基, 口己, 口机, 孝二, 孝司, 孝治, 宏二, 宏治, 小池, 小路, 康二, 康治, 恒二, 扣基, 扣鸡, 晃司, 浩二, 浩司, 浩治, and 耕司