In the entire world, コウシロウ (コウシロウ ) is an extremely rare unknown gender first name. Much more frequently, コウシロウ is the last name as well as the forename.
Koushirou, and Kousirou
カジ, ミヤザキ, サイトウ, タカハシ, オオワキ, シバヤマ, イケガミ, ホンゴウ, ミヤモト, ノムラ, ヤマダ, ニシムラ, ナカオ, スズキ, ウエダ, コイケ, タナカ, オガワ, シバタ, カトウ, カワイ, ハタ, イケ, ハラダ, and ワタナベ
) is an extremely rare unknown gender first name. Much more frequently, コウシロウ is the last name as well as the forename.