| Sepp | | ZEP | German | |
| Seppel | | - | German | |
| Seraphina | | - | English (Rare), German (Rare), Late Roman | |
| Severin | | ZE-ve-reen (German) | German, Swedish, Norwegian, Danish | |
| Severina | | - | Italian, Portuguese, Croatian, German, Ancient Roman | |
| Sibylla | | zi-BUY-lah (German) | Greek, German, Swedish, Late Roman, Late Greek | |
| Sibylle | | zi-BUY-lə (German) | German, French | |
| Sidonia | | - | Late Roman, German | |
| Siegbert | | ZEEK-bert | German | |
| Sieger | | - | Dutch, German | |
| Siegfried | | ZEEK-freet (German) | German, Germanic Mythology | |
| Sieghard | | ZEEK-hahrt | German | |
| Sieghild | | - | German | |
| Sieglinde | | - | German, Germanic Mythology | |
| Siegmund | | ZEEK-muwnt | German | |