| Sandra | | SAHN-drah (Italian, Dutch, Finnish), SAN-drə (English), ZAHN-drah (German) | Italian, English, French, Spanish, Portuguese, German, Dutch, Swedish, Norwegian, Danish, Icelandic, | |
| Sara | | SAH-rah (Spanish, Finnish, Dutch, Polish), ZAH-rah (German), SER-ə (English), SAR-ə (English), SAH:-rah (Arabic) | Greek, Spanish, Italian, Portuguese, Catalan, Swedish, Norwegian, Danish, Icelandic, Finnish, German | |
| Sebastian | | ze-BAHS-tee-ahn (German), sə-BAS-chən (English), se-BAHS-tyahn (Polish), SE-bahs-tee-ahn (Finnish) | German, English, Swedish, Norwegian, Danish, Polish, Finnish, Romanian | |
| Selma | | SEL-mə (English), ZEL-mah (German) | English, German, Dutch, Swedish, Norwegian, Danish, Icelandic | |
| Severin | | ZE-ve-reen (German) | German, Swedish, Norwegian, Danish | |
| Sigfrid (2) | | - | Norwegian | |
| Sigmund | | ZEEK-muwnt (German), SIG-mənd (English) | German, Swedish, Norwegian, Danish, English | |
| Signe | | SEENG-ne (Swedish, Norwegian), SEE-ne (Danish) | Swedish, Norwegian, Danish | |
| Signy | | - | Swedish, Norwegian, Danish | |
| Sigrid | | SEEG-reed (Finnish) | Norwegian, Swedish, Danish, Estonian, Finnish (Archaic) | |
| Sigrun | | - | Swedish, Norwegian, Danish | |
| Sigurd | | SEE-gurd (Swedish) | Norwegian, Danish, Swedish, Norse Mythology | |
| Silje | | - | Norwegian, Danish | |
| Simen | | - | Norwegian | |
| Simon | | SIE-mən (English), see-MAWN (French), ZEE-mawn (German), SEE-mawn (Dutch) | English, French, Swedish, Norwegian, Danish, German, Dutch, Hungarian, Slovene, Romanian, Macedonian | |