| Steffen | | SHTE-fen (Low German) | Low German, Danish, Norwegian, Dutch | |
| Steffi | | - | German | |
| Steffie | | - | German (Rare) | |
| Stella (1) | | STEL-ə (English) | English, Italian, Dutch, German | |
| Stephan | | SHTE-fahn (German) | German, Dutch | |
| Stephanie | | STEF-ə-nee (English), SHTE-fah-nee (German) | English, German | |
| Susann | | zoo-ZAHN (German) | German, Swedish, Norwegian, Danish | |
| Susanne | | zoo-ZAH-nə (German), soo-SAN-ne (Danish) | German, Danish, Swedish, Norwegian | |
| Suse | | ZOO-zə | German | |
| Susi | | ZOO-zee | German | |
| Sven | | SVEN | Swedish, Norwegian, Danish, German, Dutch | |
| Svenja | | SVEN-yah | German | |
| Swanahilda | | - | Ancient Germanic | |
| Swanhild | | - | German | |
| Swanhilda | | - | German | |