| 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 | |
| Stevan | | - | Serbian, Croatian | |
| Stevo | | - | Serbian, Croatian | |
| Stipan | | - | Croatian | |
| Stipe | | - | Croatian | |
| Stipo | | - | Croatian | |
| Stjepan | | - | Croatian, Serbian | |
| StoŠIja | | - | Croatian (Rare) | |
| Stoja | | - | Croatian | |
| Stojan | | - | Macedonian, Serbian, Croatian, Slovene | |
| SunČAna | | soon-CHAH-nah | Croatian | |
| SunČIca | | soon-CHEET-sah | Croatian | |
| Suzana | | - | Croatian, Serbian, Slovene, Macedonian, Portuguese (Brazilian) | |