| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Slavitsa | - | Medieval Slavic (Hypothetical) | ||
| Slavka | - | Slovene, Croatian | ||
| Slavko | - | Croatian, Serbian, Slovene | ||
| SlavomÍR | - | Czech, Slovak | ||
| Slavomir | - | Croatian, Serbian, Medieval Slavic | ||
| Sloan | SLON | English (Rare) | ||
| Sloane | SLON | English (Rare) | ||
| Slobodan | - | Serbian, Macedonian, Croatian | ||
| Slobodanka | - | Serbian, Croatian | ||
| SluaghadhÁN | - | Ancient Irish | ||
| Smiljana | - | Croatian, Serbian | ||
| SmiltĖ | - | Lithuanian | ||
| SneŽAna | - | Serbian | ||
| Sneha | - | Indian, Hindi, Marathi, Bengali, Kannada | ||
| Snezhana | - | Russian, Bulgarian, Macedonian |