| Name | Meaning | Gender | Origin |
|---|
| Snoop | To pry into the private affairs of others | Unisex | English |
| Socks | Short stockings finishing above the ankle | Unisex | English |
| Sol | Peace | Male | Hebrew |
| Spike | A long, thick sharp-pointed piece of wood or metal | Male | English |
| Splash | To cause fluid to scatter in flying masses. To display very noticeably. | Unisex | English |
| Spot | After Data's cat on Star Trek: The Next Generation | Unisex | English |
| Sprite | Lemonade flavored soft drink. | Unisex | English |
| Sprout | | Unisex | Hebrew |
| Spud | Slang for potato. | Unisex | English |
| Stan | Meadow that is stony | Male | English |
| Steve | Crown | Male | Greek |
| Stitch | After the character in the Lilo And Stitch cartoon | Unisex | English |
| Stone | Stone | Male | English |
| Styx | Myth Name (A River Of The Underworld) | Unisex | English |
| Sven | Boy, lad | Male | Norse |
| Sweet | | Unisex | Hebrew |
| Switch | | Unisex | Hebrew |
| Tad | Poet | Male | Gaelic |
| Tai | Big | Unisex | Chinese |
| Tait | Cheerful | Unisex | Norse |
| Taj | Crown | Male | Sanskrit |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Taz | Wild Animal, Thrid Born | Unisex | American |
| Teal | The Bird Teal: Also The Blue-Green Color. | Unisex | English |
| Tex | Of Texas | Unisex | English |
| Thane | Freeman | Male | English |
| Thor | Thunder | Male | Norse |
| Thorpe | Hamlet | Male | Norse |
| Tod | Fox | Male | English |
| Todd | Fox | Male | English |