| Name | Meaning | Gender | Origin |
|---|
| Sienna | A clay like earthy reddish brown | Female | Italian |
| Sky | The expanse of air over the Earth | Female | Nature |
| Skylar | eternal life, strength, love and beauty | Female | Spelling |
| Skyler | Dutch, scholar | Male | Spelling |
| Socks | Short stockings finishing above the ankle | Unisex | |
| Sofia | wisdom | Female | Greek |
| Sonny | A boy or young man. | Male | Nickname |
| Sophia | Wisdom.
| Female | Greek |
| Sparrow | a bird | Female | Nature |
| Stanley | Lives by the stony grove
| Male | English |
| Stella | a star | Female | Latin |
| Stella | a star | Female | Latin |
| Sterling | British money or coin. A type of silver. Of good character. genuine, valued | Male | English |
| Story | | Male | |
| Summer | summer season | Female | Word |
| Sundance | | Unisex | Hebrew |
| Sunday | | Female | |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Suri | princess | Female | Hebrew |
| Sydney | from city of St. Denis | Female | |
| Tabitha | gazelle, roe-buck | Female | Aramaic |
| Talia | Dew of heaven
| Female | Hebrew |
| Talia | Dew of heaven
| Female | Hebrew |
| Tallulah | leaping water | Female | Irish |
| Talulah | Leaping Water | Unisex | Native American |