| Sébastien | Man | French Names |
| Sequin | Unisex | French Names |
| Séverin | Unisex | French Names |
| Seymour | Man | French Names |
| Shanton | Woman | French Names |
| Sidney | Unisex | French Names |
| Sidonie | Woman | French Names |
| Sigourney | Unisex | French Names |
| Silvain | Man | French Names |
| Silvine | Woman | French Names |
| Simone | Woman | French Names |
| Sixtine | Woman | French Names |
| Solange | Woman | French Names |
| Soleil | Woman | French Names |
| Solène | Woman | French Names |
| Soline | Woman | French Names |
| Sophie | Woman | French Names |
| Stephanie | Woman | French Names |
| Suede | Unisex | French Names |
| Susane | Woman | French Names |