| Name | Meaning | Gender | Origin |
|---|
| Reeses | | Unisex | |
| Reggie | counsel power | Male | English |
| Remy | Brand of French cognac | Male | |
| Rianne | From John | Unisex | Celtic |
| Ringo Starr | | Unisex | Hebrew |
| River | | Male | |
| 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 | |
| Rocco | rest | Male | Italian |
| Rocket | To move swiftly and powerfully | Male | Word |
| Rocky | rest | Male | English |
| Roland | from the famous land | Male | |
| Roo | | Unisex | Hebrew |
| Rory | aka Rors | Male | Irish |
| Roux | Red | Male | French |
| Rudy | From Rudolph - Famous wolf | Male | |
| Rumble | | Unisex | |
| Rupert | middle name: Biggles | Male | |
| Rusty | Covered in rust - a brownish red colour. | Unisex | |
| Sagwa | | Unisex | Hebrew |
| Salem | Peace
| Male | Hebrew |
| Sam | to hear | Male | English |
| Sammy | Hebrew, told by God | Male | English |
| Sampson | sun | Male | Hebrew |
| Sandy | Abbreviation of Alexander defender of man.
| Male | Scottish |
| Saucy | | Unisex | Hebrew |