| Name | Meaning | Gender | Origin |
|---|
| Reuben | Behold a son | Male | Hebrew |
| Rex | after the Rex Banner character in The Simpsons cartoons | Male | Latin |
| Rhett | Enthusiastic, stream.
| Male | English |
| Rhodes | dweller by the crosses; roses | Male | Greek |
| Rhodesia | | Unisex | Hebrew |
| Rice | | Unisex | |
| Rickie | Powerful, Brave Ruler | Unisex | 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 |
| Rodney | after the character in the british sitcom Only Fools And Horses | Male | English |
| Romeo | pilgrim to Rome | Male | Italian |
| Romulus | citizen of Rome | Male | Latin |
| Ronan | a pledge | Male | Irish |
| Roosevelt | rose field | Male | Dutch |
| Rory | aka Rors | Male | Irish |
| Roxane | | Unisex | |
| Roy | regal one, Red haired | Male | |
| Royal | kingly, royal | Male | |
| Royce | son of the king | Male | English |
| Rubin | | Unisex | |
| Rudy | From Rudolph - Famous wolf | Male | |
| Rufus | Red haired | Male | Latin |
| Rupert | middle name: Biggles | Male | |
| Rush | red-haired | Male | English |
| Russell | Red as a fox. | Male | |