| Name | Meaning | Gender | Origin |
|---|
| Smokey | A grayish blue colour. Slang for highway patrol officer | Unisex | English |
| Smoky | | Unisex | Hebrew |
| Sniper | A skilled shooter who spots targets from a concealed place. | Unisex | English |
| Snowball | | Unisex | Hebrew |
| Sparky | Animated, lively. | Unisex | English |
| Speedy | Rapid motion, swift. | Unisex | English |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Unisex | English |
| Spruce | Evergreen tree | Male | English |
| Steve | Crown | Male | Greek |
| Storm | Violent weather | Female | English |
| Stormy | Violent weather | Unisex | English |
| Tahoe | Edge of the lake | Unisex | Native American |
| Talon | A claw | Male | English |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Tate | "Pleasant And Bright."Some Variants Are Tait, Taite, And Tayte. | Female | English |
| Teddy | Gift of God | Male | Greek |
| Tegan | Beautiful | Male | Welsh |
| Teo | Gift of God | Male | Greek |
| Teva | Nature | Unisex | Hebrew |
| Thor | Thunder | Male | Norse |
| Thunder | Stormy Tempered | Unisex | English |
| Tiger | Tiger | Unisex | English |
| Timber | Wood used as a building material. Also timber-wolf. | Unisex | English |
| Titan | Powerful big man | Unisex | Greek |
| Titus | Of The Giants | Male | Latin |
| Toby | God is good | Unisex | Hebrew |
| Todd | Fox | Male | English |
| Toffee | A hard brown, chewy candy | Unisex | English |
| Togo | Country on the Gulf of Guinea in the west of Africa | Both | African |
| Tucker | Someone who folds cloth | Male | English |