| Name | Meaning | Gender | Origin |
|---|
| Samantha | A listener | Female | Hebrew |
| Sammy | Hebrew, told by God | Male | English |
| Samson | Bright sun
| Male | Hebrew |
| Sandy | Abbreviation of Alexander defender of man.
| Male | Scottish |
| Sassy | Lively and spirited | Female | |
| Satan | The Devil and adversary of God | Male | |
| Satin | smooth, shiny | Female | |
| Satin | smooth, shiny | Female | |
| Saturn | Sixth and second largest planet away from the Sun. | Male | |
| Scarlet | Scarlet coloured, deep red | Female | Color |
| Scout | One dispatched from main body to gather information | Male | Word |
| Sergeant | to serve | Male | Latin |
| Shadow | A rough, dark image cast by an object blocking the sun's rays | Female | English |
| Shark | | Unisex | |
| Shelby | From the manor house Willow farm. English surname used more for girls than boys given names.
| Female | English |
| Sherbert | Frozen dessert made from fruit, sugar and water. Australian slang for beer. | Unisex | |
| Sherlock | Blond
| Male | English |
| Sigurd | Victorious Guardian | Unisex | Scandinavian |
| Silver | White
| Male | English |
| Slate | | Male | |
| Smoke | | Unisex | |
| Smoke | | Unisex | |
| Snuffles | | Unisex | Hebrew |
| Sophie | Wisdom. Variant of Sophia
| Female | |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Female | Word |