| Radomil | | - | Czech, Medieval Slavic | |
| Radomir | | - | Serbian, Russian, Bulgarian, Medieval Slavic | |
| Radomira | | - | Serbian | |
| RadosŁAw | | rah-DAW-swahf | Polish | |
| RadosŁAwa | | rah-daw-SWAH-vah | Polish | |
| Radoslav | | rah-dah-SLAHF (Russian) | Czech, Serbian, Croatian, Bulgarian, Macedonian, Russian, Medieval Slavic | |
| Radoslava | | rah-dah-SLAH-vah (Russian) | Czech, Bulgarian, Russian, Serbian, Croatian, Macedonian, Medieval Slavic | |
| Radovan | | - | Slovak, Czech, Serbian, Croatian, Medieval Slavic | |
| Radzim | | - | Polish | |
| Radzimierz | | rah-JEEM-yesh | Polish (Rare) | |
| Rae | | RAY | English | |
| Raeburn | | RAY-bərn | English (Rare) | |
| Raelene | | ray-LEEN | English (Rare) | |
| Raelyn | | RAY-lin | English (Rare) | |
| Rafa | | RAH-fah | Spanish | |