| Name | Meaning | Gender | Origin |
|---|
| Presley | Priest clearing | Unisex | English |
| Prewitt | Brave | Male | English |
| Radley | Red wood | Male | English |
| Ramses | Son of Ra | Male | Ancient Egyptian |
| Rebel | One that resists of defies authority | Unisex | English |
| Reeve | Steward, bailiff | Male | English |
| Rex | King | Male | Latin |
| Rhett | Advice, counsel | Male | English |
| Riva | To bind | Female | Hebrew |
| Rocket | To move swiftly and powerfully | Unisex | English |
| Rocky | Battle cry | Male | Germanic |
| Roland | Famous country | Male | Germanic |
| Romeo | Pilgrim to Rome | Male | Italian |
| Rorschach | | Unisex | Hebrew |
| Roz | Weak, tender or soft horse | Female | Germanic |
| Sable | Sable (black) | Unisex | English |
| Sadie | Princess | Female | Hebrew |
| Salty | | Unisex | Hebrew |
| Sam | He is called god | Male | Hebrew |
| Sasquatch | Has extra toes and hence is a bigfoot | Unisex | English |
| Sassy | Lively and spirited | Unisex | English |
| Sawyer | One who saws wood | Male | English |
| Saxon | Sharp blade | Female | German |
| Seth | Appointed | Male | Hebrew |
| Shadow | Shadow | Unisex | English |
| Sheila | Blind | Female | Latin |
| Shelby | A place where willows grow | Female | American English |
| Sherwood | Bright, wooded glen | Male | English |
| Simba | Lion | Female | Swahili |
| Smoky | | Unisex | Hebrew |