| Name | Meaning | Gender | Origin |
|---|
| Snoopy | | Unisex | Hebrew |
| Snow | Snow, fair skinned | Female | English |
| Snowy | Covered with snow | Female | English |
| Socks | Short stockings finishing above the ankle | Unisex | English |
| Sooty | Covered with soot | Unisex | English |
| Sophie | Wisdom | Female | Greek |
| Sparky | Animated, lively. | Unisex | English |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Unisex | English |
| Spot | After Data's cat on Star Trek: The Next Generation | Unisex | English |
| Spud | Slang for potato. | Unisex | English |
| Starr | Star | Female | Latin |
| Storm | Violent weather | Female | English |
| Stormy | Violent weather | Unisex | English |
| Stubby | | Unisex | Hebrew |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | English |
| Sun | Goodness | Female | Korean |
| Susie | Lily | Female | Hebrew |
| Suzie | Lily | Unisex | Hebrew |
| Tabatha | Gazelle | Female | Aramaic |
| Tabitha | Gazelle | Female | Aramaic |
| Talia | Dew of God | Female | Hebrew |
| Tammy | Twin | Female | Aramaic |
| Tara | Crag | Female | Gaelic |
| Taryn | King Of Rocky Hill. Variant Of Tarynn. | Female | American English |
| Tasha | (Christ's) birthday | Female | Latin |
| Taylor | A tailor | Female | English |
| Tempest | Storm | Female | English |
| Tess | Harvester | Female | Greek |
| Tessa | Harvester | Female | Greek |
| Tex | Of Texas | Unisex | English |