Ryunosuke Kawai
- Title: Ryunosuke Kawai
- Popularity: 3.307
- Known For: Acting
- Birthday: 1983-05-23
- Place of Birth: Fuchū, Tokyo, Japan
- Homepage: https://ryunosukekawai.amebaownd.com
- Also Known As: 河合龍之介, Ryûnosuke Kawai, Ryuunosuke Kawai, Ryūnosuke Kawai