| Stig | | - | Swedish, Norwegian, Danish | |
| Stina | | - | Swedish, Norwegian, Danish | |
| Stine | | - | Danish, Norwegian | |
| Storm | | STORM (English) | English (Modern), Danish, Norwegian | |
| Sunniva | | - | Norwegian | |
| Susann | | zoo-ZAHN (German) | German, Swedish, Norwegian, Danish | |
| Susanne | | zoo-ZAH-nə (German), soo-SAN-ne (Danish) | German, Danish, Swedish, Norwegian | |
| Svanhild | | - | Norwegian, Norse Mythology | |
| Svante | | - | Swedish, Norwegian, Danish | |
| Svein | | - | Norwegian | |
| Sven | | SVEN | Swedish, Norwegian, Danish, German, Dutch | |
| Svend | | SVEN (Danish) | Danish, Norwegian | |
| Sverre | | - | Norwegian | |
| Sylvi | | SUYL-vee (Finnish) | Norwegian, Swedish, Finnish | |
| Sylvia | | SIL-vee-ə (English), SUYL-vee-ah (Finnish) | English, Swedish, Norwegian, Danish, Finnish, German | |