| Skyler | | SKIE-lər | English (Modern) | |
| Slade | | SLAYD | English (Modern) | |
| Sloan | | SLON | English (Rare) | |
| Sloane | | SLON | English (Rare) | |
| Sly | | SLIE | English | |
| Smith | | SMITH | English | |
| Solomon | | SAHL-ə-mən (English) | Biblical, English, Jewish | |
| Sommer | | - | English (Modern) | |
| Sondra | | SAWN-drə | English | |
| Sonia | | SON-yə (English), SAWN-yə (English), SO-nyah (Italian) | English, Italian, Spanish, Portuguese, Romanian | |
| Sonnie | | SUN-ee | English (Rare) | |
| Sonny | | SUN-ee | English | |
| Sonya | | SON-yə (English), SAWN-yə (English) | Russian, English | |
| Sophia | | so-FEE-ə (English), so-FIE-ə (British English), zo-FEE-ah (German) | English, Greek, German, Ancient Greek | |
| Sophie | | so-FEE (French), SO-fee (English), ZO-fee (German) | French, English, German, Dutch | |