All around the world, Kooichi (Kooichi ) is an extremely rare boy's forename. Much less frequently, Kooichi is the last name as well as the forename.
コオイチ, and コーイチ
Chee, Konuma, Wakida, Matsuda, Sakihama, and Nakagaki
) is an extremely rare boy's forename. Much less frequently, Kooichi is the last name as well as the forename.