| Radomil | | - | Czech, Medieval Slavic | |
| 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 | |
| Radovan | | - | Slovak, Czech, Serbian, Croatian, Medieval Slavic | |
| Randel | | - | Medieval English | |
| Ratimir | | - | Croatian, Medieval Slavic | |
| Rohese | | - | Medieval English | |
| Rohesia | | - | Medieval English (Latinized) | |
| Roland | | RO-lənd (English), ro-LAWN (French), RO-lawnd (Hungarian) | English, French, German, Swedish, Dutch, Hungarian, Medieval French | |
| Rostislav | | rahs-tee-SLAHF (Russian) | Russian, Czech, Medieval Slavic | |
| Roul | | - | Medieval French, Medieval English | |
| Royse | | - | Medieval English | |