| Name | Meaning | Gender | Origin |
|---|
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Unisex | English |
| Splash | To cause fluid to scatter in flying masses. To display very noticeably. | Unisex | English |
| Spud | Slang for potato. | Unisex | English |
| Stan | Meadow that is stony | Male | English |
| Star | Star | Female | Latin |
| Stardust | | Unisex | Hebrew |
| Starlight | | Unisex | Hebrew |
| Stella | Star | Female | Latin |
| Sterling | Little star - stellar | Male | English |
| Stetson | Son of Stephen | Male | English |
| Storm | Violent weather | Female | English |
| Sugar | A sweet powder from sugar cane. Slang for sweetheart. | Female | English |
| Suki | To like | Female | Japanese |
| Sully | Keen eye | Male | Gaelic |
| Sunday | 7th day of the week | Unisex | English |
| Sunny | Filled with sunlight | Male | English |
| Sunshine | Light from the sun | Unisex | English |
| Sweetie | Sweetheart. | Unisex | English |
| Tabitha | Gazelle | Female | Aramaic |
| Taco | A folded fried tortilla filled with meat, cheese and spices. | Unisex | English |
| Taffy | Beloved | Female | Welsh |
| Tamara | Palm tree | Female | Hebrew |
| Tammy | Twin | Female | Aramaic |
| Tango | | Unisex | Hebrew |
| Tank | A large metal container. A heavily armed combat vehicle | Unisex | English |
| Tanker | | Unisex | Hebrew |
| Tanner | Tanner | Male | English |
| Tarzan | White skin | Unisex | Literary |
| Tate | "Pleasant And Bright."Some Variants Are Tait, Taite, And Tayte. | Female | English |
| Tawny | Tawny, tanned | Female | English |