| Rada | | - | Russian, Bulgarian, Macedonian, Serbian | |
| Radka | | - | Czech, Bulgarian | |
| Radko | | - | Bulgarian, Czech | |
| Radomir | | - | Serbian, Russian, Bulgarian, Medieval Slavic | |
| 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 | |
| Raina | | - | Bulgarian | |
| Raya | | - | Bulgarian | |
| Rayko | | - | Bulgarian | |
| Rayna (1) | | - | Bulgarian | |
| Rayno | | - | Bulgarian | |
| Rosa (2) | | - | Bulgarian, Macedonian | |
| Rosica | | - | Bulgarian | |
| Rositsa | | - | Bulgarian | |
| Roza (1) | | RO-zah (Russian) | Russian, Slovene, Bulgarian, Macedonian | |