| Name | Meaning | Gender | Origin |
|---|
| Seymour | Moor | Male | Latin |
| Shawnee | Tribal name | Female | Native American |
| Sheba | Daughter of an oath | Female | Hebrew |
| Sierra | Mountain range | Female | Spanish |
| Silver | Silver (the metal or colour) | Male | English |
| Simba | Lion | Female | Swahili |
| Skittles | | Unisex | Hebrew |
| Sky | Sky | Unisex | Norse |
| Slade | Valley | Male | English |
| Slate | | Unisex | Hebrew |
| Smokey | A grayish blue colour. Slang for highway patrol officer | Unisex | English |
| Snowball | | Unisex | Hebrew |
| Snowy | Covered with snow | Female | English |
| Sonya | Wisdom | Female | Greek |
| Spidey | | Unisex | Hebrew |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Unisex | English |
| Sprite | Lemonade flavored soft drink. | Unisex | English |
| Storm | Violent weather | Female | English |
| Stormy | Violent weather | Unisex | English |
| Tahoe | Edge of the lake | Unisex | Native American |
| Tango | | Unisex | Hebrew |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Tasha | (Christ's) birthday | Female | Latin |
| Terra | Earth, soil | Female | Latin |
| Thor | Thunder | Male | Norse |
| Thunder | Stormy Tempered | Unisex | English |
| Tiger | Tiger | Unisex | English |
| Tigerlily | | Female | Hebrew |
| Timber | Wood used as a building material. Also timber-wolf. | Unisex | English |
| Trace | Thracius' place | Unisex | English |