| RHADAMANTHUS | myth name (a judge in the underworld) |
| Rhea | Of the flowing stream; in mythology, the wife of Cronus and mother of gods and goddesses; Mother of the gods.; The mother of the Greek god, Zeus. Wife of Cronus.; Rivers; Singer |
| RHESUS | myth name (king of Thrace) |
| RHETA | A speaker or eloquent person. |
| Rhete | One who is ready and prepared. |
| RHODA | A name meaning a rose flower. |
| Rhodantha | Meaning a roselike flower. |
| Rhodanthe | A flower of rosy color. |
| Rhodia | Derived from the rose flower. |
| RHOECUS | myth name (saved Hamadryad) |
| Rina | Catherine; Dissolved; Diminutive of feminine names ending in -rina.; Joyous song; Peaceful. |
| Rita | From Margarita; Precious pearl; Pearl; Speaker. Can also be a variant of Margaret: Pearl.; Variant of Margaret: Child of light. Famous Bearer: Margaret Thatcher, former Prime Minister of the United Kingdom.; Way of life |
| RITSA | protector of man |
| Ritza | Protector of man. |
| Roseanne | A combination of Rose and Anne. |
| Rue | Herb of grace and regret |
| Rydia | Rose pettles on still water. |
| Saba | Eastern wind.; Early morning breeze; Old, Ancient; From Sheba.; Seventh Daughter; Woman from Sheba / born in the morning |
| Sachenka | Feminine form of Alexander: Defender; protector of mankind. Famous Bearer: Alexander the Great. |
| Sachka | Feminine form of Alexander: Defender; protector of mankind. Famous Bearer: Alexander the Great. |
| Saina | A beautiful and peaceful flower. |
| Salena | The moon; Salt; From a salty place.; Variant of Sally (from Sarah: princess).; Variant of Selina: Moon goddess. |
| SALMONEUS | myth name (during Trojan War, pretended to be Zeus) |
| Salus | Goddess of health |
| Sande | Diminutive of Alexander: Defender of men; protector of mankind. |
| Sander | Defender of man. |
| Sanders | Son of alexander |
| Sandey | Diminutive of Alexander: Defender of men; protector of mankind. |
| Sandi | "Defender, helper of all men." |
| Sandie | Diminutive of Alexander: Defender of men; protector of mankind. |
| Sandrine | Protector of man. |
| Sandy | Abbreviation of Alexander defender of man.; Diminutive of Alexander: Defender of men; protector of mankind.; Derives From Alexander; Feminine form of Alexander: Defender; protector of mankind. Famous Bearer: Alexander the Great.; Good Lamp; From the name |
| SARPEDON | myth name (killed by Patroclus during the Trojan War) |
| Sascha | Feminine form of Alexander: Defender; protector of mankind. Famous Bearer: Alexander the Great. |
| SCYLLA | myth name (a sea monster) |
| Sebasten | Venerable and highly respected |
| SEBASTENE | One who is greatly honored |
| Sebastian | From Sebaste, A town in Asia minor. |
| Sebastienne | Feminine form of the revered |
| Seema | Boundary; Border; Limit; Limit.; Limit, border; Sprout; A Sign; A symbol; a sign |