| Name | Meaning | Gender | Origin |
|---|
| Snickers | A brand of candy bar. | Unisex | |
| Snow | Frozen crystals that fall in soft, white flakes | Female | English |
| Snowball | | Unisex | |
| Snowflake | Single flake or crystal of snow. | Unisex | |
| Snowy | Covered with snow | Unisex | |
| Sooty | Covered with soot | Unisex | |
| Spade | | Unisex | |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Female | Word |
| Spooky | | Unisex | |
| Sprinkles | | Unisex | |
| Spumoni | | Unisex | |
| Stain | | Unisex | Hebrew |
| Star | A celestial body that emits light. A famous performer. | Female | Word |
| Star | A celestial body that emits light. A famous performer. | Female | Word |
| Starbuck | Chain of US coffee houses. | Unisex | |
| Stoney | Stone-Lie | Unisex | Greek |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Summer | summer season | Female | Word |
| Sundance | | Unisex | Hebrew |
| Sunkist | | Unisex | |
| Sunset | Daily disappearance of the sun below the horizon. Usually red, yellow or orange in colour. | Unisex | |
| Sunshine | Rays from the sun. Cheerfulness | Female | Word |
| Suri | princess | Female | Hebrew |
| Susana | Lily Variant of Hebrew Susannah. In the apocryphal Book of Tobit Susannah courageously defended herself against wrongful accusation. White lilies grew in the Biblical city of Susa in Persia.
| Female | |