| Name | Meaning | Gender | Origin | 
|---|
| Simon | Listening | Male | Hebrew | 
| Skye | Cloud | Male | Norse | 
| Skylar | Guarded | Female | Dutch | 
| Smokey | A grayish blue colour. Slang for highway patrol officer | Unisex | English | 
| Snickers | A brand of candy bar. | Unisex | English | 
| Sooty | Covered with soot | Unisex | English | 
| Spider | An eight legged insect | Unisex | English | 
| Spike | A long, thick sharp-pointed piece of wood or metal | Male | English | 
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Unisex | English | 
| Spooky |  | Unisex | Hebrew | 
| Stephen | Crown | Male | Greek | 
| Storm | Violent weather | Female | English | 
| Stormy | Violent weather | Unisex | English | 
| Styx | Myth Name (A River Of The Underworld) | Unisex | English | 
| Sweet |  | Unisex | Hebrew | 
| Tabatha | Gazelle | Female | Aramaic | 
| Tabitha | Gazelle | Female | Aramaic | 
| Taffy | Beloved | Female | Welsh | 
| Talon | A claw | Male | English | 
| Teagan | Little poet | Female | Gaelic | 
| Tempest | Storm | Female | English | 
| Thor | Thunder | Male | Norse | 
| Thorne | Thorn bush | Male | English | 
| Thunder | Stormy Tempered | Unisex | English | 
| Thurston | Thor's stone, Thor's settlement | Male | English | 
| Toffee | A hard brown, chewy candy | Unisex | English | 
| Tootsie | A girl or young woman. | Unisex | English | 
| Trixie | Voyager through life | Female | Latin | 
| Trouble | A cause of disturbance or difficulty. | Unisex | English | 
| Twila | Woven with a double thread | Female | American English |