| Name | Meaning | Gender | Origin |
|---|
| Sid | Wide meadow | Male | English |
| Skinner | | Unisex | Hebrew |
| Slim | Slender in proportion to height. | Unisex | English |
| Slinky | | Unisex | Hebrew |
| Smokey | A grayish blue colour. Slang for highway patrol officer | Unisex | English |
| Spot | After Data's cat on Star Trek: The Next Generation | Unisex | English |
| Squirt | Slang for a small person | Unisex | English |
| Stinky | | Unisex | Hebrew |
| Stretch | To extend to full length. | Unisex | English |
| Sulley | Keen eye | Unisex | Gaelic |
| Sullivan | Keen eye | Male | Gaelic |
| Terri | Harvester | Female | Greek |
| Terry | Ruler of the people | Unisex | Germanic |
| The | | Unisex | Hebrew |
| Timmy | To honor God, to fear God | Male | Greek |
| Tom | Twin | Male | Aramaic |
| Tony | Derived From Victoria Triumphant. | Male | Latin |
| Trixie | Voyager through life | Female | Latin |
| Uncle | | Unisex | Hebrew |
| Van | God is gracious | Female | Hebrew |
| Violet | Violet | Female | Latin |
| Woody | Wood row, wood line | Male | English |