| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Simone (1) | see-MON (French) | French, English | ||
| Simonette | - | English (Rare) | ||
| Sinclair | sin-KLER | English (Rare) | ||
| Sindy | SIN-dee | English (Rare) | ||
| Sinjin | - | English (Rare) | ||
| Sissie | SIS-ee | English | ||
| Sissy | SIS-ee | English | ||
| Sky | SKIE | English (Modern) | ||
| Skye | SKIE | English (Modern) | ||
| Skylar | SKIE-lər | English (Modern) | ||
| Skyler | SKIE-lər | English (Modern) | ||
| Slade | SLAYD | English (Modern) | ||
| Sloan | SLON | English (Rare) | ||
| Sloane | SLON | English (Rare) | ||
| Sly | SLIE | English |