| Name | Meaning | Gender | Origin |
|---|
| Roger | Famous spear | Male | English |
| Romeo | Pilgrim to Rome | Male | Italian |
| Roy | Red | Male | Gaelic |
| Ruggiero | Famous spear | Male | English |
| Ryder | One who rides | Unisex | English |
| Saber | Patient | Male | English |
| Sagiv | Mighty | Male | Hebrew |
| Sailor | Sailor | Unisex | English |
| Sam | He is called god | Male | Hebrew |
| Scout | Observer | Unisex | American English |
| Sebastian | Man from Sebaste | Male | Latin |
| Seward | Victory Guard of the Coast | Male | English |
| Sidney | Wide meadow | Male | English |
| Simon | Listening | Male | Hebrew |
| Sloan | Fighter | Male | American English |
| Sloane | Fighter | Unisex | American English |
| Slone | Warrior | Male | Celtic |
| Stetson | Son of Stephen | Male | English |
| Stewart | Guardian of the house | Male | English |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Templeton | House of the Knights Templar settlement | Male | English |
| Tex | Of Texas | Unisex | English |
| Thane | Freeman | Male | English |
| Tosh | Contentment | Unisex | Indian |
| Tristan | Tumult | Male | Gaelic |
| Trooper | A state or mounted police officer. Also a member of a cavalry unit. | Unisex | English |
| Tyrone | Land of the noble | Male | Gaelic |
| Umberto | Famous giant | Male | German |
| Victor | Victor | Male | Latin |
| Vilmos | Will, desire and helmet, protection | Male | Germanic |