| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Siwan | - | Welsh | ||
| Sixten | - | Swedish | ||
| Sizwe | - | Southern African, Xhosa | ||
| Sjang | SHAHNG | Limburgish | ||
| Sjarel | SHAH-rəl | Limburgish | ||
| Sjeng | SHENG | Limburgish | ||
| Sjoerd | SHOORT (Dutch) | Frisian, Dutch | ||
| Sjra | SHRAH | Limburgish | ||
| Ska&Eth;I | - | Norse Mythology | ||
| Skadi | - | Norse Mythology | ||
| Skanda | - | Hinduism | ||
| Skuld | - | Norse Mythology | ||
| Sky | SKIE | English (Modern) | ||
| Skye | SKIE | English (Modern) | ||
| Skylar | SKIE-lər | English (Modern) |