| Name | Meaning | Gender | Origin |
|---|
| Snowflake | Single flake or crystal of snow. | Unisex | |
| Snowman | | Unisex | |
| Snowy | Covered with snow | Unisex | |
| Solstice | Sun Exposure | Female | Greek |
| Spartacus | from the city of Sparta | Male | Latin |
| Spike | A long, thick sharp-pointed piece of wood or metal | Male | American |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Female | Word |
| Star | A celestial body that emits light. A famous performer. | Female | Word |
| Star | A celestial body that emits light. A famous performer. | Female | Word |
| Starr | Star | Female | English |
| Stella | a star | Female | Latin |
| Stella | a star | Female | Latin |
| Sugarplum | | Unisex | Hebrew |
| Suzy | Lily | Unisex | English |
| Tasha | Russian diminutive of Natalya, birthday of the Lord | Female | English |
| Teddy | From Edward - Prosperous guardian | Unisex | |
| Theodore | gift of God | Male | Greek |
| Tim | Greek, honoring God | Male | Greek |
| Timothy | honoring God | Male | Greek |
| Tinsel | | Unisex | |
| Tootsie | A girl or young woman. | Unisex | |
| Tosha | Twin | Unisex | Japanese |
| Tree | | Unisex | Hebrew |
| Turkey | | Unisex | |
| Twinkle | | Unisex | |