| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Sylvaine | seel-VEN | French | ||
| Sylvanus | - | English (Archaic) | ||
| Sylvester | sil-VES-tər (English) | English, Dutch, Danish, German | ||
| Sylvestre | - | French | ||
| Sylvia | SIL-vee-ə (English), SUYL-vee-ah (Finnish) | English, Swedish, Norwegian, Danish, Finnish, German | ||
| Sylviane | - | French | ||
| Sylvianne | - | French | ||
| Sylvie | seel-VEE | French | ||
| Symphony | SIM-fə-nee | English (Rare) | ||
| Syntyche | SIN-tə-kee (English) | Biblical, Biblical Greek, Ancient Greek | ||
| TÉLesphore | - | French | ||
| TÓFa | - | Ancient Scandinavian | ||
| TÓFi | - | Ancient Scandinavian | ||
| Tabatha | TAB-a-thə | English | ||
| Tabby | TAB-ee | English |