| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Sture | STOO-re (Swedish) | Swedish, Medieval Scandinavian | ||
| Sunnifa | - | Medieval Scandinavian | ||
| Svetopolk | - | Medieval Slavic (Hypothetical) | ||
| Svetoslav | - | Bulgarian, Medieval Slavic | ||
| TemÜJin | - | Medieval Mongolian | ||
| TemÜR | - | Medieval Turkic | ||
| Tenney | - | Medieval English | ||
| Tielo | - | Medieval German | ||
| Tikhomir | - | Medieval Slavic | ||
| Tomislav | - | Croatian, Serbian, Slovene, Medieval Slavic | ||
| Tomislava | - | Croatian, Serbian, Medieval Slavic | ||
| Vasilii | - | Medieval Slavic | ||
| Veceslav | - | Medieval Czech | ||
| Vecheslav | - | Medieval Slavic | ||
| Velasco | - | Medieval Spanish |