| Name | Meaning | Gender | Origin |
|---|
| Renoir | | Male | Hebrew |
| Reuben | Behold a son | Male | Hebrew |
| Ribbon | | Unisex | Hebrew |
| Rickie | Powerful, Brave Ruler | Unisex | English |
| Rico | aka Jerico | Male | Spanish |
| Riley | courageous | Female | Irish |
| Ripley | after the novel and the movie The Talented Mr. Ripley | Male | English |
| Rocket | To move swiftly and powerfully | Male | Word |
| Rocky | rest | Male | English |
| Rodrigo | famous ruler | Male | Spanish |
| Rogue | | Male | |
| Rolo | Burmese | Unisex | |
| Romance | | Female | |
| Romeo | pilgrim to Rome | Male | Italian |
| Rory | aka Rors | Male | Irish |
| Rosemary | the rosemary plant | Female | Latin |
| Rosie | From Rose - The most beautiful of flowers | Female | English |
| Roxanne | Dawn
| Female | Persian |
| Roxy | From Roxanne - Brilliant dawn | Female | English |
| Ruby | Jewel
| Female | Latin |
| Rudy | From Rudolph - Famous wolf | Male | |
| Rum Tum Tugger | | Unisex | Hebrew |
| Runt | | Unisex | Hebrew |
| Rusty | Covered in rust - a brownish red colour. | Unisex | |
| Ryder | cavalryman, messenger | Male | British |