| Name | Meaning | Gender | Origin |
|---|
| Rascal | One that is playfully mischievous | Unisex | English |
| Reba | To tie | Female | Hebrew |
| Remington | Settlement on the boundary stream | Male | English |
| Renny | To Rise Again. | Male | English |
| Rex | King | Male | Latin |
| Riley | Rye clearing | Male | English |
| Ringo | Apple, peace be with you | Male | English |
| Robbin | Famed: Bright: Shining Form Of Robert Popular Since The Medieval Days Of Robin Hood. Robinson: (English) Son Of Robert Famed: Bright: Shining. Surname. | Unisex | English |
| Rocco | Battle cry | Male | Germanic |
| Rocky | Battle cry | Male | Germanic |
| Rogue | | Unisex | Hebrew |
| Romeo | Pilgrim to Rome | Male | Italian |
| Rory | Red king | Male | Gaelic |
| Rosie | Rose | Female | Latin |
| Roxy | Star | Female | Persian |
| Roz | Weak, tender or soft horse | Female | Germanic |
| Ruby | Red | Female | Latin |
| Rudy | Famous wolf | Male | Germanic |
| Rufus | Red | Male | Latin |
| Rupert | Bright fame | Male | English |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sabre | | Unisex | Hebrew |
| Sadie | Princess | Female | Hebrew |
| Salem | Secure, peace | Unisex | Arabic |
| Sally | Princess | Female | Hebrew |
| Sam | He is called god | Male | Hebrew |
| Sammy | His name is God | Unisex | Hebrew |
| Samson | Sun | Male | Hebrew |
| Sandy | Defending men | Male | Greek |
| Sasha | Defending men | Unisex | Greek |