| Name | Meaning | Gender | Origin |
|---|
| Shadow | A rough, dark image cast by an object blocking the sun's rays | Female | English |
| Silver | White
| Male | English |
| Silvester | Forest | Unisex | English |
| Simon | he who hears | Male | Hebrew |
| Sky | The expanse of air over the Earth | Female | Nature |
| Skylar | eternal life, strength, love and beauty | Female | Spelling |
| Smoky | | Unisex | |
| Sorcha | bright, shining | Female | Irish |
| Spike | A long, thick sharp-pointed piece of wood or metal | Male | American |
| Steele | | Unisex | |
| Sterling | British money or coin. A type of silver. Of good character. genuine, valued | Male | English |
| Storm | Storm
| Male | Word |
| Sullivan | black-eyed one | Male | Irish |
| Susanna | lily | Female | Hebrew |
| Talon | large claw of a bird of prey | Male | |
| Tama | Jewel | Unisex | Japanese |
| Tanais | | Female | |
| Tanis | Spanish abbreviation of Estanislao make famous from the name borne by several Slavic kings and three saints.
| Female | Spanish |
| Tansy | immortality, flower name | Female | Greek |
| Taos | | Male | Hebrew |
| Tatiana | | Female | |
| Tempest | storm | Female | Word |
| Tenebrae | | Unisex | |
| Terry | Latin clan name of uncertain meaning | Male | English |
| Thalia | blooming, plentiful | Female | Greek |