| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Sithembile | - | Southern African, Zulu | ||
| Siward | - | Ancient Germanic | ||
| Sixte | - | French | ||
| Sixtine | - | French | ||
| Sizwe | - | Southern African, Xhosa | ||
| Sjaak | SHAH:K | Dutch | ||
| Sjakie | SHAH-kee | Dutch | ||
| Sjef | SHEF | Dutch | ||
| Sjoerd | SHOORT (Dutch) | Frisian, Dutch | ||
| Sjors | SHAWRS | Dutch | ||
| SlÀIne | - | Scottish | ||
| SlaĐAna | SLAH-jah-nah | Serbian, Croatian | ||
| SlavĚNa | - | Czech | ||
| Slava | - | Russian, Slovene, Croatian | ||
| Slaven | - | Croatian, Serbian |