Ryūtarō, Ryutaro, Ryuutarou or Ryuutaroh is a masculine Japanese given name. Notable people with the name include:
, Japanese actor and model , Japanese politician , Japanese composer , Japanese sport wrestler , stage name Ryu, Japanese musician and DJ , Japanese director and animator , Japanese politician and convicted fraudster , Japanese photographer , Japanese film actor
See also Ryutaros, a character from Kamen Rider Den-O Ryōtarō