| Name | Meaning | Gender | Origin |
|---|
| Rhianna | Great queen, goddess, nymph | Unisex | Welsh |
| Rhiannon | divine queen | Female | Welsh |
| Ricky | dominant or peaceful ruler | Male | English |
| Riley | courageous | Female | Irish |
| Ripper | | Unisex | |
| Roach | | Unisex | Hebrew |
| Roadkill | | Unisex | Hebrew |
| Robbie | Abbreviation of Robert Famed: bright: shining.
| Male | |
| Rocky | rest | Male | English |
| Roger | famous spearman, quiet | Male | |
| Ronnie | Victorious | Unisex | English |
| Rory | aka Rors | Male | Irish |
| Rosalie | rose | Female | |
| Roscoe | From the deer forest. | Male | Norse |
| Rowan | red-haired; rugged | Male | Scottish |
| Rowdy | A rough disorderly person. | Male | American |
| Roxie | Persian, dawn | Female | English |
| Roy | regal one, Red haired | Male | |
| Ruby | Jewel
| Female | Latin |
| Rufus | Red haired | Male | Latin |
| Rusty | Covered in rust - a brownish red colour. | Unisex | |
| Ryder | cavalryman, messenger | Male | British |
| Sadie | Princess
| Female | English |
| Sandy | Abbreviation of Alexander defender of man.
| Male | Scottish |
| Sapphire | Precious Gem | Female | Hebrew |