| Name | Meaning | Gender | Origin |
|---|
| Robert | Famed: bright: shining. 14th-century King Robert the Bruce. Robert Burns the poet.
| Male | English |
| Roger | famous spearman, quiet | Male | |
| Roland | from the famous land | Male | |
| Roquefort | Mouse from The AristoCats
| Male | |
| Roux | Red | Male | French |
| Roxane | | Unisex | |
| Ruff | Fun spelling of rough; irregular surface or boisterous. | Unisex | |
| Russell | Red as a fox. | Male | |
| Saber | | Unisex | |
| Sabine | Of Sabine, Italy | Unisex | French |
| Sacha | helper and defender of mankind | Male | |
| Sargent | officer, to serve | Male | Spelling |
| Savoy | | Unisex | |
| Sebastian | An august person | Male | Latin |
| Serge | servant | Male | |
| Seymour | From St. Maur
| Male | English |
| Sid | | Unisex | |
| Simon | he who hears | Male | Hebrew |
| Sinclair | From Saint Clair sur Elle
| Male | Scottish |
| Sinjin | | Male | |
| Stuart | Bailiff
| Male | Scottish |
| Syd | Variant of Sidney from St. Denis
| Male | |
| Talbot | reward | Male | English |
| Theo | divine gift | Male | English |
| Tintin | | Unisex | |