| RĂZvan | | - | Romanian | |
| Radu | | - | Romanian | |
| Rahela | | - | Romanian, Serbian | |
| Raluca | | - | Romanian | |
| Ramona | | rah-MO-nah (Spanish), rə-MON-ə (English) | Spanish, Romanian, English | |
| Regula | | - | German (Swiss), Late Roman | |
| Regulus | | - | Ancient Roman | |
| Remigius | | - | Late Roman | |
| Remus | | REE-məs (English) | Roman Mythology, Romanian | |
| Renata | | re-NAH-tah (Italian, Spanish, German, Polish) | Italian, Spanish, Portuguese, German, Polish, Czech, Croatian, Slovene, Late Roman | |
| Renatus | | - | Late Roman | |
| Rhea | | REE-ə (English) | Greek Mythology (Latinized), Roman Mythology | |
| Rodica | | ro-DEE-kah | Romanian | |
| Romaeus | | - | Late Roman | |
| Romana | | - | Italian, Polish, Slovene, Croatian, Czech, Slovak, Late Roman | |