| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Severina | - | Italian, Portuguese, Croatian, German, Ancient Roman | ||
| Severinus | - | Ancient Roman | ||
| Severus | - | Ancient Roman | ||
| Sextilius | - | Ancient Roman | ||
| Sextus | SEKS-tuws | Ancient Roman | ||
| Silvanus | sil-VAY-nəs (English) | Roman Mythology, Ancient Roman, Biblical, Biblical Latin | ||
| Spurius | SPUWR-i-uws | Ancient Roman | ||
| Tacita | - | Ancient Roman | ||
| Tacitus | - | Ancient Roman | ||
| Tarquinius | - | Ancient Roman | ||
| Tatianus | - | Ancient Roman | ||
| Tatius | - | Roman Mythology, Ancient Roman | ||
| Terentius | - | Ancient Roman | ||
| Tertius | TUR-shəs (English) | Ancient Roman | ||
| Thracius | - | Ancient Roman |