| Name | Meaning | Gender | Origin |
|---|
| Sadie | Princess
| Female | English |
| Sargent | officer, to serve | Male | Spelling |
| Sasha | defending men | Female | Russian |
| Sausage | Chopped meat stuffed into a prepared casing and cooked. | Unisex | |
| Scout | One dispatched from main body to gather information | Male | Word |
| Scraps | | Male | |
| Shadow | A rough, dark image cast by an object blocking the sun's rays | Female | English |
| Shane | God is gracious | Male | Irish |
| Sherbet | | Unisex | Hebrew |
| Shiloh | tranquil | Female | Biblical |
| Skittles | | Male | |
| Skittles | | Male | |
| Sky | The expanse of air over the Earth | Female | Nature |
| Skyla | sky, sheltering | Female | English |
| Skylar | eternal life, strength, love and beauty | Female | Spelling |
| Smokey | A grayish blue colour. Slang for highway patrol officer | Male | |
| Smokey | A grayish blue colour. Slang for highway patrol officer | Male | |
| Smokey | A grayish blue colour. Slang for highway patrol officer | Male | |
| Snickers | A brand of candy bar. | Unisex | |
| Snickers | A brand of candy bar. | Unisex | |
| Snoopy | | Male | |
| Sonny | A boy or young man. | Male | Nickname |
| Sophie | Wisdom. Variant of Sophia
| Female | |
| Speckles | | Unisex | Hebrew |
| Spice | Plant used to flavour food or beverages. | Unisex | |