| Name | Meaning | Gender | Origin |
|---|
| Shooter | Waylon Jennings' Sons Name Is Shooter. | Male | User Contributed |
| Skeeter | | Unisex | |
| Skip | From Skipper, Meaning Shipmaster | Unisex | English |
| Sniper | A skilled shooter who spots targets from a concealed place. | Unisex | |
| Sonic | Approaching the speed of sound, fast-paced | Unisex | |
| Spark | | Unisex | |
| Spaz | For a spazy kitty
| Male | |
| Speed | Success | Unisex | English |
| Speedo | | Unisex | |
| Speedy | Rapid motion, swift. | Unisex | |
| Spritzer | Drink made from wine and carbonated water | Unisex | |
| Swift | | Unisex | |
| Taz | | Male | |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Tiger | A large, striped, carnivorous mammal from Asia. | Male | Animal |
| Ultra | | Unisex | Hebrew |
| Wildwood | | Unisex | Hebrew |
| Wiz | | Unisex | Hebrew |
| Zebra | Horse like African mammals with distinct black and white stripes. | Unisex | |
| Zeki | Wise | Male | Turkish |
| Zippy | | Unisex | |
| Zorro | Means fox in Spanish. | Male | |