title: Kosaburo
text: # Kosaburo
  
  Kosaburo, Kōsaburō or Kousaburou (written: 攻三郎, 恒三郎 or こうさぶろう in hiragana) is a masculine Japanese given name. Notable people with the name include:
  
  * Kosaburo Hashiguchi (橋口 攻三郎), Japanese mathematician
  * Kosaburo Nishime (西銘 恒三郎, born 1954), Japanese politician
  
  Kosaburō or Kosaburou (written: 小三郎 or こさぶろう in hiragana) is a separate given name, though it may be romanized the same way. Notable people with the name include:
  
  