| Name | Meaning | Gender | Origin |
|---|
| Portia | pig, hog or doorway | Female | Latin |
| Preston | dweller at the church, priest's settlement | Male | English |
| Priscilla | Of ancient lineage | Female | Latin |
| Prometheus | Forethought | Unisex | Greek |
| Prudence | caution | Female | |
| Quentin | Fifth.
| Male | Latin |
| Quincy | Fifth: derived from Roman clan name.
| Male | |
| Quintin | fifth | Male | Latin |
| Ralph | Red wolf
| Male | English |
| Ralph | Red wolf
| Male | English |
| Randolph | shield-wolf | Male | English |
| Raphael | God's healer
| Male | Hebrew |
| Rebecca | bound, tied | Female | Hebrew |
| Remington | from the raven's home | Male | English |
| Rex | after the Rex Banner character in The Simpsons cartoons | Male | Latin |
| Rhea | stream, mother; poppy | Female | Greek |
| Rhianna | Great queen, goddess, nymph | Unisex | Welsh |
| Richard | powerful ruler; brave one | Male | |
| Ripley | after the novel and the movie The Talented Mr. Ripley | Male | English |
| Robert | Famed: bright: shining. 14th-century King Robert the Bruce. Robert Burns the poet.
| Male | English |
| Rochelle | from the little rock | Female | |
| Rodney | after the character in the british sitcom Only Fools And Horses | Male | English |
| Roland | from the famous land | Male | |
| Rollo | wolf | Male | Latin |
| Roman | citizen of Rome | Male | Latin |