| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Stefanu | - | Old Church Slavic | ||
| Steponas | - | Lithuanian | ||
| Susanna | soo-ZAHN-nah (Italian), SOO-sahn-nah (Finnish), soo-ZAN-ə (English) | Italian, Swedish, Finnish, Russian, Dutch, English, Biblical, Biblical Latin, Old Church Slavic | ||
| SvajonĖ | - | Lithuanian | ||
| Symeonu | - | Old Church Slavic | ||
| 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 | ||
| TÍMea | - | Hungarian | ||
| TÓDor | - | Hungarian | ||
| TÓNi | - | Hungarian |