| 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 | |
| Stojan | | - | Macedonian, Serbian, Croatian, Slovene | |
| Suzana | | - | Croatian, Serbian, Slovene, Macedonian, Portuguese (Brazilian) | |
| Tadej | | - | Slovene | |
| Tamara | | tah-MAH-rah (Russian, Spanish, Italian), tə-MAHR-ə (English), TAM-ə-rə (English) | Russian, Ukrainian, Czech, Slovak, Polish, Slovene, Croatian, Serbian, Macedonian, English, Dutch, S | |
| Tanja | | TAHN-yah (German, Finnish) | German, Finnish, Serbian, Croatian, Slovene, Macedonian, Danish, Swedish, Norwegian | |
| Tatjana | | TAHT-yah-nah (Finnish) | Serbian, Croatian, Slovene, Macedonian, German, Latvian, Lithuanian, Finnish | |
| Tea | | TE-ah (Finnish) | Croatian, Slovene, Swedish, Danish, Norwegian, Finnish | |
| Teja | | - | Slovene | |
| Teodor | | te-AW-dawr (Polish), TE-o-dor (Croatian) | Swedish, Norwegian, Danish, Romanian, Czech, Slovak, Polish, Serbian, Croatian, Slovene, Hungarian, | |
| Terezija | | - | Slovene, Croatian | |
| Tim | | TIM (English, German, Dutch, Slovene) | English, German, Dutch, Slovene, Swedish, Norwegian, Danish | |
| Timotej | | - | Slovene, Macedonian, Slovak | |