| Name | Meaning | Gender | Origin |
|---|
| Rebel | One that resists of defies authority | Male | Word |
| Reef | | Male | Hebrew |
| Regan | little king | Female | Irish |
| Regina | Queen
| Female | Latin |
| Rhianna | Great queen, goddess, nymph | Unisex | Welsh |
| Rhodes | dweller by the crosses; roses | Male | Greek |
| Rider | horseman | Male | English |
| Rio | River
| Male | Spanish |
| Roch | Glory
| Female | |
| Rochelle | from the little rock | Female | |
| Ron | Ronald | Unisex | |
| Ronny | | Unisex | |
| Rosalie | rose | Female | |
| Rosanna | Greek or Latin version of Hannah, Hebrew, grace | Female | Combination |
| Roscoe | From the deer forest. | Male | Norse |
| Rosetta | splendid | Female | Persian |
| Rosy | | Female | |
| Royal | kingly, royal | Male | |
| Royce | son of the king | Male | English |
| Rufus | Red haired | Male | Latin |
| Rush | red-haired | Male | English |
| Rya | | Unisex | |
| Saeed | | Unisex | |
| Sagan | | Unisex | Hebrew |
| Sahib | sir | Unisex | |