Ryūnosuke, Ryunosuke or Ryuunosuke (written: 龍之介, 隆之介 or 竜之介 lit. "dragon herald") is a masculine Japanese given name. Notable people with the name include:
Ryūnosuke Akutagawa (芥川 龍之介, 1892–1927), Japanese writer
Ryunosuke Kingetsu (金月 龍之介, born 1971), Japanese screenwriter
Ryūnosuke Kusaka (草鹿 龍之介, 1893–1971), Imperial Japanese Navy admiral
Ryunosuke Kamiki (神木 隆之介, born 1993), Japanese actor and voice actor
Ryunosuke Noda (野田 隆之介, born 1988), Japanese footballer
Ryunosuke Okamoto (岡本 竜之介, born 1984), Japanese footballer
Ryūnosuke Tsukigata (月形 龍之介, 1902–1970), Japanese actor
Fictional characters:
Ryuunosuke Fujinami (藤波 竜之介), character in the manga series Urusei Yatsura
Ryunosuke Natsume (夏目 龍之介), character in the manga series All Purpose Cultural Cat Girl Nuku Nuku
Ryūnosuke Uryū (雨生 龍之介), character in the light novel series Fate/Zero
Ryūnosuke Akutagawa (芥川 龍之介), character in the anime and manga series Bungo Stray Dogs
Ryūnosuke Tanaka (田中 龍之介), character in the anime and manga series Haikyuu!!
Ryūnosuke Akasaka (赤坂 龍之介), character in the anime and light novel series The Pet Girl of Sakurasou
Ryunosuke Ibuki, character in video game and anime series Hakuouki
