| StÍGandr | | - | Ancient Scandinavian | |
| StaŠA | | - | Serbian, Slovene, Croatian | |
| Staas | | STAH:S | Dutch | |
| Stamen | | - | Bulgarian, Macedonian | |
| Stana | | - | Czech, Serbian, Croatian | |
| Stanimir | | - | Bulgarian, Russian, Serbian, Medieval Slavic | |
| Stanislav | | stah-nee-SLAHF (Russian) | Czech, Slovak, Russian, Ukrainian, Bulgarian, Slovene, Serbian, Croatian, Medieval Slavic | |
| Stanislava | | stah-nee-SLAH-vah (Russian) | Czech, Slovak, Bulgarian, Serbian, Croatian, Slovene, Russian, Medieval Slavic | |
| Stanka | | - | Slovene, Croatian, Bulgarian | |
| Stanko | | STAHN-ko (Slovene, Croatian) | Slovene, Croatian, Serbian, Bulgarian | |
| Steafan | | - | Scottish | |
| Steaphan | | - | Scottish | |
| Steenie | | - | Scottish | |
| Stef | | STEF | Dutch | |
| StefÁN | | - | Icelandic | |