| Rade | | - | Serbian, Croatian | |
| Radmila | | - | Serbian, Croatian, Czech | |
| 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 | |
| Rajko | | - | Croatian | |
| Ranka | | - | Croatian | |
| Ranko | | - | Serbian, Croatian | |
| Ratimir | | - | Croatian, Medieval Slavic | |
| Ratko | | - | Croatian, Serbian | |
| Renata | | re-NAH-tah (Italian, Spanish, German, Polish) | Italian, Spanish, Portuguese, German, Polish, Czech, Croatian, Slovene, Late Roman | |
| Renato | | re-NAH-to (Italian, Spanish) | Italian, Spanish, Portuguese, Croatian | |
| Roko | | - | Croatian | |
| Roman | | rah-MAHN (Russian), RAW-mahn (Polish) | Russian, Polish, Czech, Slovak, Ukrainian, Slovene, Croatian, German | |
| Romana | | - | Italian, Polish, Slovene, Croatian, Czech, Slovak, Late Roman | |