| Name | Meaning | Gender | Origin |
|---|
| Sunlight | | Unisex | |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Sunrays | | Unisex | |
| Sunshine | Rays from the sun. Cheerfulness | Female | Word |
| 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 | |
| Susanna | lily | Female | Hebrew |
| Susanne | 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 | |
| Sushi | Raw fish. | Unisex | |
| Sushi | Raw fish. | Unisex | |
| Susie | Hebrew, lily | Female | English |
| Suzanne | 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 | |
| Suzette | 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 | |
| Suzy | Lily | Unisex | English |
| Sweet Holly | | Unisex | |
| Sweet Pea | | Female | |
| Sweetie Pie | | Unisex | |
| Swiss | | Unisex | Hebrew |
| Sylvester | A cartoon cat that tried to eat the bird character Tweety. He was a black and white cat.
| Male | Latin |
| Taboo | | Male | |
| Taffi | | Unisex | Hebrew |
| Tai | great extreme | Male | Chinese |
| Talcum | | Unisex | |
| Tamashi | | Unisex | |
| Tanner | leather worker | Male | English |
| Tapioca | Starch used for puddings and as a thickening agent in cooking. | Unisex | |