| Name | Meaning | Gender | Origin |
|---|
| Rebel | One that resists of defies authority | Male | Word |
| Red | A primary colour resembling the colour of blood | Male | Color |
| Reggie | counsel power | Male | English |
| Reginald | powerful one | Male | English |
| Rex | after the Rex Banner character in The Simpsons cartoons | Male | Latin |
| Rhys | ardor | Male | Welsh |
| Ricardo | dominant ruler | Male | Portuguese |
| Richard | powerful ruler; brave one | Male | |
| Rick | aka Richard, Dick and Little Man | Male | English |
| Ricky | dominant or peaceful ruler | Male | English |
| Rip | ripe, full grown | Male | Dutch |
| Rita | pearl, precious | Female | English |
| Robbie | Abbreviation of Robert Famed: bright: shining.
| Male | |
| Robert | Famed: bright: shining. 14th-century King Robert the Bruce. Robert Burns the poet.
| Male | English |
| 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 | |
| Rock | Italian from German, rest | Male | English |
| Rodney | after the character in the british sitcom Only Fools And Horses | Male | English |
| Ron | Ronald | Unisex | |
| Ronnie | Victorious | Unisex | English |
| Roscoe | From the deer forest. | Male | Norse |
| Rose | Flower
| Female | Latin |
| Rosie | From Rose - The most beautiful of flowers | Female | English |
| Ross | from the TV sitcom Friends | Male | Scottish |
| Rowan | red-haired; rugged | Male | Scottish |
| Roy | regal one, Red haired | Male | |