Katsutarō, Katsutaro, Katsutaroh or Katsutarou (written: 勝太郎) is a masculine Japanese given name. Notable people with the name include:
*, Japanese serial killer
*, Japanese businessman and film producer
*, Japanese ''geisha'' and singer
*, Japanese sumo wrestler
{{DEFAULTSORT:Katsutaro
Japanese masculine given names
Masculine given names