R（10）
- Active Players
- R
R
- 139 Pitcher (*)
- Radney, Chariel
- Chiba Lotte Marines
- 46 Pitcher
- Ragsdale, Carson
- Hanshin Tigers
- 56 Pitcher
- Ramirez, Emmanuel
- Saitama Seibu Lions
- 130 Infielder (*)
- Ramirez, Moises
- Hiroshima Toyo Carp
- 132 Outfielder (*)
- Ratanayake, Ramal Geevin
- Saitama Seibu Lions
- 99 Outfielder
- Reyes, Franmil
- Hokkaido Nippon-Ham Fighters
- 62 Pitcher
- Reynolds, Sean
- YOKOHAMA DeNA BAYSTARS
- 131 Outfielder (*)
- Roberto, Nelson
- Hiroshima Toyo Carp
- 156 Pitcher (*)
- Rodriguez, Luis
- Fukuoka SoftBank Hawks
- 49 Pitcher
- Ruiz, Jose
- YOKOHAMA DeNA BAYSTARS