| Name | Meaning | Gender | Origin |
|---|
| Ruff | Fun spelling of rough; irregular surface or boisterous. | Unisex | |
| Rufus | Red haired | Male | Latin |
| Sailor | One who serves in the navy or works on a ship. | Male | Occupational |
| Samson | Bright sun
| Male | Hebrew |
| Sanders | Alexander's son
| Male | |
| Sandler | after the actor Adam Sandler | Unisex | |
| Sawyer | woodsman | Male | English |
| Schuyler | scholar | Male | Dutch |
| Selene | after the Greek godess of the moon | Unisex | |
| Selina | Moon | Unisex | Greek |
| Shade | | Male | |
| Sharp | | Unisex | Hebrew |
| Sherwood | Bright forest. | Male | English |
| Smith | blacksmith | Male | English |
| Sparkle | To shine with animation | Unisex | |
| Spencer | Shopkeeper, dispenser, keeper | Male | English |
| Stennis | | Unisex | Hebrew |
| Sterling | British money or coin. A type of silver. Of good character. genuine, valued | Male | English |
| Sully | from the south meadow | Male | |
| Suzy | Lily | Unisex | English |
| Swayze | | Unisex | |
| Talbot | reward | Male | English |
| Tanner | leather worker | Male | English |
| Taurus | bull | Male | Latin |
| Temple | dweller near the temple | Male | English |