| Name | Meaning | Gender | Origin |
|---|
| Remy | Brand of French cognac | Male | |
| Rex | after the Rex Banner character in The Simpsons cartoons | Male | Latin |
| Rhys | ardor | Male | Welsh |
| Riley | courageous | Female | Irish |
| Rocco | rest | Male | Italian |
| Rocky | rest | Male | English |
| Roger | famous spearman, quiet | Male | |
| Roman | citizen of Rome | Male | Latin |
| Romeo | pilgrim to Rome | Male | Italian |
| Ronan | a pledge | Male | Irish |
| Rory | aka Rors | Male | Irish |
| Rose | Flower
| Female | Latin |
| Rosie | From Rose - The most beautiful of flowers | Female | English |
| Rowan | red-haired; rugged | Male | Scottish |
| Rowdy | A rough disorderly person. | Male | American |
| Roxanne | Dawn
| Female | Persian |
| Roxie | Persian, dawn | Female | English |
| Roxy | From Roxanne - Brilliant dawn | Female | English |
| Royal | kingly, royal | Male | |
| Royce | son of the king | Male | English |
| Ruby | Jewel
| Female | Latin |
| Rudy | From Rudolph - Famous wolf | Male | |
| Rusty | Covered in rust - a brownish red colour. | Unisex | |
| Ryder | cavalryman, messenger | Male | British |
| Sadie | Princess
| Female | English |