| Name | Meaning | Gender | Origin |
|---|
| Sneakers | | Unisex | |
| Sniper | A skilled shooter who spots targets from a concealed place. | Unisex | |
| Spanky | | Unisex | |
| Spaz | For a spazy kitty
| Male | |
| Speedo | | Unisex | |
| Speedy | Rapid motion, swift. | Unisex | |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Female | Word |
| Springer | jumper, leaper | Male | English |
| Spunky | Spirited, plucky. | Male | |
| Sticky | | Unisex | Hebrew |
| Striker | | Male | |
| Suzy | Lily | Unisex | English |
| Tara | A hill where the kings met
| Female | Irish |
| Taz | | Male | |
| Thumper | To walk with heavy steps | Unisex | |
| Tony | priceless one | Male | English |
| Tornado | Violently rotating funnel shaped cloud. | Female | Spanish |
| Trouble | A cause of disturbance or difficulty. | Male | |
| Troy | Descendant of the curly haired ones | Male | Irish |
| Turbo | Driven by a turbine - turbocharged | Unisex | |
| Tyson | son of a German, son of Ty | Male | English |
| Victor | Victor
| Male | Latin |
| Vida | life | Female | Spanish |
| Vidal | Life. Used as both surname and given name. See also Vito.
| Male | Spanish |
| Vito | Vital
| Male | Latin |