>
Family name コウジ (Koji , コウジ , Kouzi ) , all around the world, is a widespread surname. The cognomen コウジ is characteristic of Japan, where it is a common surname, Lebanon, where it is quite a rare surname, and Montenegro. Not in comparison with a country's population, it is the most numerous in Japan, China, and Nigeria. Much less frequently, コウジ is the forename as well as the last name.