| Name | Meaning | Gender | Origin |
|---|
| Ricardo | dominant ruler | Male | Portuguese |
| Robert | Famed: bright: shining. 14th-century King Robert the Bruce. Robert Burns the poet.
| Male | English |
| Robyn | | Unisex | |
| Rock | Italian from German, rest | Male | English |
| Roger | famous spearman, quiet | Male | |
| Roman | citizen of Rome | Male | Latin |
| Ronnie | Victorious | Unisex | English |
| Rosemary | the rosemary plant | Female | Latin |
| Rufus | Red haired | Male | Latin |
| Russell | Red as a fox. | Male | |
| Sabby | | Unisex | Hebrew |
| Sami | All hearing
| Male | English |
| Samuel | his name is God | Male | Hebrew |
| Sanders | Alexander's son
| Male | |
| Sandy | Abbreviation of Alexander defender of man.
| Male | Scottish |
| Scorpio | scorpion | Male | Latin |
| Sebastian | An august person | Male | Latin |
| Seneca | people of the standing rock | Male | Latin |
| Shanna | | Female | |
| Shaun | Irish variation of John, God is gracious | Male | Spelling |
| Sheldon | protected hill | Male | English |
| Shoni | | Unisex | Hebrew |
| Slate | | Male | |
| Spencer | Shopkeeper, dispenser, keeper | Male | English |
| Stacey | Greek, fruitful, productive | Male | Greek |