| Name | Meaning | Gender | Origin |
|---|
| Rogue | | Male | |
| Roland | from the famous land | Male | |
| Rowdy | A rough disorderly person. | Male | American |
| Sabine | Of Sabine, Italy | Unisex | French |
| Sailor | One who serves in the navy or works on a ship. | Male | Occupational |
| Satan | The Devil and adversary of God | Male | |
| Scout | One dispatched from main body to gather information | Male | Word |
| Spartacus | from the city of Sparta | Male | Latin |
| Stalin | | Unisex | Hebrew |
| Steel | Strong metal alloy made of iron and carbon. Hard unflinching character. | Male | Word |
| Stetson | Cowboy Hat | Male | English |
| Story | | Male | |
| Taliesin | shining brow | Male | Welsh |
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Tennyson | after Alfred Lord Tennyson, english poet 1809-1892 | Male | English |
| Thimble | | Unisex | Hebrew |
| Thurston | Thor's jewel. | Male | Scandinavian |
| Tigerlily | | Unisex | |
| Tiramisu | | Male | Hebrew |
| Tracy | path, road | Male | |
| Trapper | One who traps animals for their fur. | Unisex | |
| Tripp | traveler | Male | Word |
| Tycho | Bullseye | Unisex | Latin |
| Ulysses | Greek mythology name, wrathful | Male | Latin |
| Valkyrie | Chooser of the slain | Unisex | Norse |