| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| SYLVESTER | sil-VES-tər (English) | English, Dutch, Danish, German | ||
| SYLVESTRE | - | French | ||
| SYLVI | SUYL-vee (Finnish) | Norwegian, Swedish, Finnish | ||
| Sylvia | ['silviə] | |||
| SYLVIA | SIL-vee-ə (English), SUYL-vee-ah (Finnish) | English, Swedish, Norwegian, Danish, Finnish, German | ||
| SYLVIANE | - | French | ||
| SYLVIANNE | - | French | ||
| SYLVIE | seel-VEE | French | ||
| SYLWESTER | sil-VES-ter | Polish | ||
| SYLWIA | SIL-vyah | Polish | ||
| SYMEON | - | Biblical Greek, Biblical Latin | ||
| SYMEONU | - | Old Church Slavic | ||
| SYMON | - | Ukrainian (Rare) | ||
| SYMPHONY | SIM-fə-nee | English (Rare) | ||
| SYNNØVE | - | Norwegian |