| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Sappho | SAF-o (English) | Ancient Greek | ||
| Saxa | - | Ancient Germanic | ||
| Seleucus | - | Ancient Greek (Latinized) | ||
| Seleukos | - | Ancient Greek | ||
| Sigdag | - | Ancient Germanic | ||
| Sigibert | - | Ancient Germanic | ||
| Sigifrid | - | Ancient Germanic | ||
| Sigihard | - | Ancient Germanic | ||
| Sigiheri | - | Ancient Germanic | ||
| Sigihild | - | Ancient Germanic | ||
| Sigilind | - | Ancient Germanic | ||
| Sigimund | - | Ancient Germanic | ||
| Sigismund | - | German, Ancient Germanic | ||
| Sigivald | - | Ancient Germanic | ||
| Sigiward | - | Ancient Germanic |