| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Syntyche | SIN-tə-kee (English) | Biblical, Biblical Greek, Ancient Greek | ||
| Syuzanna | - | Russian | ||
| Szabina | SAW-bee-naw | Hungarian | ||
| Szabolcs | - | Hungarian | ||
| Szandra | - | Hungarian | ||
| SzilÁRd | - | Hungarian | ||
| Szilveszter | SEEL-ves-ter | Hungarian | ||
| Szilvia | SEEL-vee-aw | Hungarian | ||
| Szonja | SON-yaw | Hungarian | ||
| TÄHti | - | Finnish (Rare) | ||
| TÍMea | - | Hungarian | ||
| TÓDor | - | Hungarian | ||
| TÓFa | - | Ancient Scandinavian | ||
| TÓFi | - | Ancient Scandinavian | ||
| TÓMas | - | Icelandic |