Cognomen Koujiro (Koujiro ) , all around the world, is an extremely rare family name. Much more prevalently, Koujiro is the forename as well as the last name.
Kohjiro, Kojiro, コウジロ, and 神代
Miyake, Sumiya, Kodera, Tambara, and Hatanaka
) , all around the world, is an extremely rare family name. Much more prevalently, Koujiro is the forename as well as the last name.