| Rudolf | | ROO-dawlf (German), RUW-dawlf (Polish) | German, Dutch, Swedish, Norwegian, Danish, Polish, Czech, Hungarian, Slovene, Croatian, Russian, Arm | |
| SaŠA | | - | Croatian, Serbian, Slovene | |
| Sabina | | sah-BEE-nah (Italian, Spanish, Polish) | Italian, Spanish, Portuguese, Romanian, Polish, Czech, Slovene, Russian, Croatian, Ancient Roman | |
| Sanda | | - | Romanian, Croatian | |
| Sandi | | - | Croatian, Slovene | |
| Sanel | | - | Croatian | |
| Sanela | | - | Croatian | |
| Sanja | | - | Croatian, Serbian | |
| Sanjica | | SAHN-yee-tsah | Croatian | |
| Sanjin | | - | Croatian | |
| Sebastijan | | - | Slovene, Croatian | |
| Senka | | - | Serbian, Croatian | |
| Severina | | - | Italian, Portuguese, Croatian, German, Ancient Roman | |
| Silvija | | - | Croatian, Slovene | |
| Silvijo | | - | Croatian | |