| Sapphira | Woman | Greek Names |
| Sebastian | Man | Greek Names |
| Sebbie | Woman | Greek Names |
| Selene | Woman | Greek Names |
| Selini | Woman | Greek Names |
| Semele | Woman | Greek Names |
| Simeon | Man | Greek Names |
| Simeona | Woman | Greek Names |
| Siren | Woman | Greek Names |
| Sirius | Man | Greek Names |
| Socrates | Man | Greek Names |
| Sophelia | Woman | Greek Names |
| Sophia | Woman | Greek Names |
| Sophocles | Man | Greek Names |
| Sophronia | Woman | Greek Names |
| Soteria | Woman | Greek Names |
| Sotiria | Woman | Greek Names |
| Sotirios | Man | Greek Names |
| Sotiris | Man | Greek Names |
| Sparta | Unisex | Greek Names |