| Sten | | - | Swedish, Danish, Norwegian, Dutch | |
| Stig | | - | Swedish, Norwegian, Danish | |
| Stina | | - | Swedish, Norwegian, Danish | |
| Stine | | - | Danish, Norwegian | |
| Storm | | STORM (English) | English (Modern), Danish, Norwegian | |
| Susann | | zoo-ZAHN (German) | German, Swedish, Norwegian, Danish | |
| Susanne | | zoo-ZAH-nə (German), soo-SAN-ne (Danish) | German, Danish, Swedish, Norwegian | |
| Svante | | - | Swedish, Norwegian, Danish | |
| Sven | | SVEN | Swedish, Norwegian, Danish, German, Dutch | |
| Svend | | SVEN (Danish) | Danish, Norwegian | |
| Sylvester | | sil-VES-tər (English) | English, Dutch, Danish, German | |
| Sylvia | | SIL-vee-ə (English), SUYL-vee-ah (Finnish) | English, Swedish, Norwegian, Danish, Finnish, German | |
| Tanja | | TAHN-yah (German, Finnish) | German, Finnish, Serbian, Croatian, Slovene, Macedonian, Danish, Swedish, Norwegian | |
| Tarben | | - | Danish | |
| Tea | | TE-ah (Finnish) | Croatian, Slovene, Swedish, Danish, Norwegian, Finnish | |