| Name | Meaning | Gender | Origin |
|---|
| Rain | Rain | Female | English |
| Rajah | Anticipation | Unisex | Arabic |
| Rambo | | Unisex | Hebrew |
| Rascal | One that is playfully mischievous | Unisex | English |
| Reba | To tie | Female | Hebrew |
| Rebecca | To tie | Female | Hebrew |
| Rebel | One that resists of defies authority | Unisex | English |
| Rei | Salute | Female | Japanese |
| Reiko | Courteous child | Female | Japanese |
| Remi | Abbreviation Of Remington. | Unisex | English |
| Ren | Water lily | Female | Japanese |
| Reno | Ruler with counsel | Unisex | Germanic |
| Riku | Shore | Female | Japanese |
| Rin | Cold | Unisex | Japanese |
| Rina | Pet form of names in -rina | Female | English |
| River | River | Unisex | English |
| Rocket | To move swiftly and powerfully | Unisex | English |
| Rogue | | Unisex | Hebrew |
| Roman | Roman | Unisex | Latin |
| Rosie | Rose | Female | Latin |
| Rowdy | Boisterous. Western Nickname. | Unisex | English |
| Roxy | Star | Female | Persian |
| Ruby | Red | Female | Latin |
| Rumor | Hood | Unisex | English |
| Rusty | Rusty, full of rust | Unisex | American English |
| Ryo | Fact | Unisex | Japanese |
| Ryoko | Refreshing child | Female | Japanese |
| Sable | Sable (black) | Unisex | English |
| Sabre | | Unisex | Hebrew |
| Sabrina | A Welsh river name | Female | Gaelic |