| Name | Meaning | Gender | Origin |
|---|
| Powder | Substance of fine particles. Light, dry snow. | Unisex | English |
| Pretzel | Glazed, salted and brittle biscuit in the form of a knot or stick. | Unisex | English |
| Rainbow | Rainbow | Unisex | English |
| Rajah | Anticipation | Unisex | Arabic |
| Red | Red | Unisex | English |
| Redd | Red | Unisex | English |
| Reed | Red | Unisex | English |
| Reid | Red | Unisex | English |
| Roux | Red | Unisex | English |
| Royal | Regal | Unisex | English |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sable | Sable (black) | Unisex | English |
| Sage | Aromatic herb | Unisex | English |
| Salt | White crystals used as food seasoning. | Unisex | English |
| Seto | | Unisex | Hebrew |
| Shadow | Shadow | Unisex | English |
| Shady | | Unisex | Hebrew |
| Skittles | | Unisex | Hebrew |
| Sky | Sky | Unisex | Norse |
| Slate | | Unisex | Hebrew |
| Smokey | A grayish blue colour. Slang for highway patrol officer | Unisex | English |
| Snickers | A brand of candy bar. | Unisex | English |
| Snowball | | Unisex | Hebrew |
| Snowflake | Single flake or crystal of snow. | Unisex | English |
| Sooty | Covered with soot | Unisex | English |
| Spade | | Unisex | Hebrew |
| Spirit | Part of the human being associated with the mind. Vigorous or animated state - spirited. Also distilled alcohol. | Unisex | English |
| Spooky | | Unisex | Hebrew |
| Spot | After Data's cat on Star Trek: The Next Generation | Unisex | English |
| Sprinkles | | Unisex | Hebrew |