| Sorley | Man | English Names |
| Soroya | Unisex | Scandinavian Names |
| Sosa | Unisex | Portuguese Names |
| Sosi | Woman | Armenian Names |
| Sosie | Woman | American Names |
| Sota | Man | Japanese Names |
| Soteria | Woman | Greek Names |
| Sotiria | Woman | Greek Names |
| Sotirios | Man | Greek Names |
| Sotiris | Man | Greek Names |
| Soto | Man | Spanish Names |
| Sotsona | Unisex | Native American - Keresan Names |
| Souma | Man | Japanese Names |
| Souta | Man | Japanese Names |
| Southern | Unisex | American Names |
| Souvik | Man | Indian Names |
| Sovann | Unisex | Cambodian Names |
| Soyala | Woman | Native American - Hopi Names |
| Spainleigh | Woman | American Names |
| Spallu | Unisex | Incan Names |