| Name | Meaning | Gender | Origin |
|---|
| Smith | blacksmith | Male | English |
| Soran | | Unisex | Hebrew |
| Spike | A long, thick sharp-pointed piece of wood or metal | Male | American |
| Stan | after the South Park character Stan Marsh | Male | Short |
| Stanley | Lives by the stony grove
| Male | English |
| Stephen | crown | Male | Greek |
| Steve | garland, crown | Male | English |
| Steven | garland, crown | Male | English |
| Swami | | Unisex | Hebrew |
| T.J. | Thomas Jefferson | Unisex | |
| Tariq | Morning star. An 8th century Islamic military leader who conquered Spain for the Moors.
| Male | Arabic |
| Ted | English, wealthy guardian | Male | English |
| Teri | Summer, Harvester | Unisex | English |
| Terry | Latin clan name of uncertain meaning | Male | English |
| Theo | divine gift | Male | English |
| Theodore | gift of God | Male | Greek |
| Thomas | Twin
| Male | Aramaic |
| Thomas | Twin
| Male | Aramaic |
| Tig | | Unisex | |
| Tim | Greek, honoring God | Male | Greek |
| Todd | fox | Male | English |
| Tom | Bartender at the Leaky Cauldron.
| Male | English |
| Tommy | From Thomas - The twin. | Male | English |
| Tony | priceless one | Male | English |
| Tootsie | A girl or young woman. | Unisex | |