| Name | Meaning | Gender | Origin |
|---|
| Rocky | Battle cry | Male | Germanic |
| Rolo | Burmese | Unisex | English |
| Roxy | Star | Female | Persian |
| Ruby | Red | Female | Latin |
| Russell | Little red one | Male | French |
| Rusty | Rusty, full of rust | Unisex | American English |
| Sandy | Defending men | Male | Greek |
| Sheridan | Long lived treasure | Unisex | Gaelic |
| Sienna | Reddish orange-brown | Female | Italian |
| Skippy | Master of a Ship | Unisex | American English |
| Smokey | A grayish blue colour. Slang for highway patrol officer | Unisex | English |
| Smudge | A blotch or smear | Unisex | English |
| Snicker | | Unisex | Hebrew |
| Snickers | A brand of candy bar. | Unisex | English |
| Soda | A carbonated water. | Unisex | English |
| Starbuck | Star Deer | Unisex | English |
| Tanner | Tanner | Male | English |
| Tawny | Tawny, tanned | Female | English |
| Teddy | Gift of God | Male | Greek |
| Thornton | Thorn bush enclosure or settlement | Male | English |
| Tiki | Maori figure representing an ancestor. A wooden or stone image of a Polynesian god. | Unisex | English |
| Timber | Wood used as a building material. Also timber-wolf. | Unisex | English |
| Toast | | Unisex | Hebrew |
| Toby | God is good | Unisex | Hebrew |
| Toffee | A hard brown, chewy candy | Unisex | English |
| Topaz | Topaz | Female | English |
| Treacle | | Unisex | Hebrew |
| Truffles | Ball shaped chocolate | Unisex | English |
| Twinkie | A cream filled cake. | Unisex | English |
| Twix | Brand of chocolate bar. | Unisex | English |