| Name | Meaning | Gender | Origin |
|---|
| Rocky | rest | Male | English |
| Rubye | | Unisex | |
| Sandy | Abbreviation of Alexander defender of man.
| Male | Scottish |
| Saphira | | Unisex | |
| Selenium | | Unisex | Hebrew |
| Shale | | Male | |
| Silver | White
| Male | English |
| Slate | | Male | |
| Steel | Strong metal alloy made of iron and carbon. Hard unflinching character. | Male | Word |
| Steele | | Unisex | |
| Stennis | | Unisex | Hebrew |
| Sterling | British money or coin. A type of silver. Of good character. genuine, valued | Male | English |
| Stoney | Stone-Lie | Unisex | Greek |
| Sulfur | | Unisex | Hebrew |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Sylvester | A cartoon cat that tried to eat the bird character Tweety. He was a black and white cat.
| Male | Latin |
| Tama | Jewel | Unisex | Japanese |
| Tanner | leather worker | Male | English |
| Tate | to be cheerful; windy, a great talker | Male | English |
| Teal | Bluish Green Color | Male | English |
| Thomas | Twin
| Male | Aramaic |
| Thomas | Twin
| Male | Aramaic |
| Thor | Viking mythology: the ruler of the weather | Male | Norse |
| Thurston | Thor's jewel. | Male | Scandinavian |
| Tourmaline | | Unisex | Hebrew |