| Name | Meaning | Gender | Origin |
|---|
| Snowy | Covered with snow | Unisex | |
| Socrates | | Male | |
| Sooner | | Unisex | Hebrew |
| Sooty Or Soot | | Unisex | |
| Spike | A long, thick sharp-pointed piece of wood or metal | Male | American |
| Squeak | | Unisex | |
| Storm | Storm
| Male | Word |
| Succotash | | Unisex | |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | Literary |
| Sunflower | | Unisex | |
| Sunkist | | Unisex | |
| Sunny | Abounding in sunshine, cheerful | Male | Nickname |
| Sunset | Daily disappearance of the sun below the horizon. Usually red, yellow or orange in colour. | Unisex | |
| Sunshine | Rays from the sun. Cheerfulness | Female | Word |
| Susan Bones | Hufflepuff student. Voldemort killed parents.
| Female | |
| Svetlana | star | Female | Russian |
| Sweet Potato | | Unisex | |
| Symphony | | Female | Hebrew |
| Tabasco | American spicy sauce made from red peppers. | Male | |
| Taffy | Sticky candy | Male | Welsh |
| Tammy | Abbreviation of Thomasina and Tamara.
| Female | English |
| Tang | | Unisex | |
| Tangelo | Orange coloured citrus fruit. | Unisex | |
| Tangerine | From Tangiers
| Female | Word |