| Name | Meaning | Gender | Origin |
|---|
| Reza | | Unisex | |
| Rhea | stream, mother; poppy | Female | Greek |
| Rhodes | dweller by the crosses; roses | Male | Greek |
| Richard | powerful ruler; brave one | Male | |
| Rimmy | | Unisex | |
| Rita | pearl, precious | Female | English |
| Rita Skeeter | Daily Prophet writer.
| Female | |
| Robin | Famed: bright: shining Form of Robert popular since the medieval days of Robin Hood. Robinson: (English) Son of Robert Famed: bright: shining. Surname.
| Male | |
| Rochelle | from the little rock | Female | |
| Rodolphus Lestrange | married Bellatrix Black.
| Male | |
| Rogers | | Unisex | |
| Roldan | powerful, mighty | Unisex | |
| Romeo And Juliet | | Unisex | Hebrew |
| Ronan | a pledge | Male | Irish |
| Rose | Flower
| Female | Latin |
| Roxana | dawn; or, little star | Female | Persian |
| Rudd | ruddy | Unisex | |
| Rukia | | Unisex | |
| Rupert | middle name: Biggles | Male | |
| Ruth | compassionate friend | Female | Hebrew |
| Rydia | Rose pettles on still water.
| Female | |
| Sable | A carnivorous mammal of Northern Europe with soft, dark fur. | Female | Animal |
| Saeed | | Unisex | |
| Saki | Cape | Unisex | Japanese |
| Salem | Peace
| Male | Hebrew |