| SreĆKo | | - | Croatian, Serbian | |
| Ssanyu | | - | Eastern African, Ganda | |
| StÉPhane | | ste-FAHN | French | |
| StÉPhanie | | ste-fa-NEE | French | |
| 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 | |