| Name | Meaning | Gender | Origin |
|---|
| Sable | Sable (black) | Unisex | English |
| Sammy | His name is God | Unisex | Hebrew |
| Samson | Sun | Male | Hebrew |
| Sarge | Noncommissioned Army or Air Force rank | Unisex | English |
| Scout | Observer | Unisex | American English |
| Scully | Town Crier | Male | English |
| Shadow | Shadow | Unisex | English |
| Sigmund | Protector | Male | German |
| Sparky | Animated, lively. | Unisex | English |
| Spike | A long, thick sharp-pointed piece of wood or metal | Male | English |
| Spud | Slang for potato. | Unisex | English |
| Squirt | Slang for a small person | Unisex | English |
| Starbuck | Star Deer | Unisex | English |
| Stein | Stone | Male | Germanic |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| T-bone | A thick steak containing a T shaped bone. | Unisex | English |
| Teddy | Gift of God | Male | Greek |
| Thor | Thunder | Male | Norse |
| Tiger | Tiger | Unisex | English |
| Tiny | Extremely small | Unisex | English |
| Tito | Giant | Unisex | Latin |
| Trooper | A state or mounted police officer. Also a member of a cavalry unit. | Unisex | English |
| Tucker | Someone who folds cloth | Male | English |
| Tyson | Son of Dye | Male | English |
| Ulf | Protector of the inheritance | Male | Germanic |
| Vinnie | Conquering | Male | Latin |
| Waldo | Ruler | Male | Germanic |
| Walter | Ruler of the army | Male | Germanic |
| Winston | Joy stone | Male | English |
| Wolfgang | Wolf going | Male | Germanic |