| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Seona | - | Scottish | ||
| Seonag | SHO-nahk | Scottish | ||
| Seumas | - | Scottish | ||
| Shaw (2) | SHAW | Scottish | ||
| Sheena | SHEE-nə | Scottish, English | ||
| Sheona | - | Scottish | ||
| Sholto | - | Scottish | ||
| Shona | - | Scottish | ||
| Shug | - | Scottish | ||
| SlÀIne | - | Scottish | ||
| Somerled | - | Scottish | ||
| Somhairle | - | Scottish, Irish | ||
| Sorcha | SAWR-ə-khə (Irish), SAWR-khə (Irish) | Irish, Scottish | ||
| Sorley | SAWR-lee | Scottish, Irish | ||
| Steafan | - | Scottish |