| Name | Meaning | Gender | Origin |
|---|
| Rowdy | A rough disorderly person. | Male | American |
| Roy | regal one, Red haired | Male | |
| Rufus | Red haired | Male | Latin |
| Rusty | Covered in rust - a brownish red colour. | Unisex | |
| Ryder | cavalryman, messenger | Male | British |
| Sandy | Abbreviation of Alexander defender of man.
| Male | Scottish |
| Savage | | Unisex | Hebrew |
| Sawyer | woodsman | Male | English |
| Schuyler | scholar | Male | Dutch |
| Shane | God is gracious | Male | Irish |
| Sheldon | protected hill | Male | English |
| Sherman | wool cutter | Male | English |
| Shredder | | Unisex | Hebrew |
| Skeeter | | Unisex | |
| Slick | | Male | |
| Smasher | | Unisex | Hebrew |
| Spencer | Shopkeeper, dispenser, keeper | Male | English |
| Stasha | | Unisex | Hebrew |
| Stevie Ray | | Unisex | Hebrew |
| Stinky | | Unisex | |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Sunrise | | Unisex | |
| Sunset | Daily disappearance of the sun below the horizon. Usually red, yellow or orange in colour. | Unisex | |
| Tanner | leather worker | Male | English |
| Tater | | Male | |