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Around the world, コウイチロウ (Koichiro , Kouichirou , コウイチロウ ) is a rare masculine first name. The given name コウイチロウ is habitual in Japan, where it is a rare masculine name, the United States, where it is an extremely rare principally male, but scarcely girly name, and China, where it is an extremely rare male name. More frequently, コウイチロウ is the last name as well as the forename.
コウイチロウ is also a name for the fictitious and mythical characters: Kōichirō Iketani , the fictional character from Initial D.