| Name | Meaning | Gender | Origin |
|---|
| Spade Flush | | Unisex | |
| Spades | | Unisex | |
| Sparkle | To shine with animation | Unisex | |
| Sparrow | a bird | Female | Nature |
| Spider | An eight legged insect | Unisex | |
| Spooky | | Unisex | |
| Spot | after Data's cat on Star Trek: The Next Generation | Male | |
| Star | A celestial body that emits light. A famous performer. | Female | Word |
| Star | A celestial body that emits light. A famous performer. | Female | Word |
| Stars | and Stripes | Unisex | |
| Stella | a star | Female | Latin |
| Stella | a star | Female | Latin |
| Stinky | | Unisex | |
| Storm | Storm
| Male | Word |
| Storm Cloud | | Unisex | Hebrew |
| Sullivan | black-eyed one | Male | Irish |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Sunshine | Rays from the sun. Cheerfulness | Female | Word |
| Sweep | To clean with a broom, for example chimney sweep | Unisex | |
| Sydney | from city of St. Denis | Female | |
| Tabby | | Unisex | |
| Taboo | | Male | |
| Tamara | Palm tree. Used as a symbolic oriental name due to the beauty and fruitfulness of the tree.
| Female | Hebrew |
| Tar | | Unisex | Hebrew |
| Tasha | Russian diminutive of Natalya, birthday of the Lord | Female | English |