| Name | Meaning | Gender | Origin |
|---|
| Nicky | Abbreviation of Nicholas. Mythological Nike was Greek goddess of victory and root origin of Nicholas.
| Female | |
| Olly | | Unisex | |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |
| Opal | Australian gemstone of remarkable colours, usually red, blue or green | Female | Sanskrit |
| Opie | | Unisex | |
| Pamela | honeyed | Female | English |
| Pierce | rock | Unisex | |
| Piney | | Unisex | Hebrew |
| Polly | Bitter
| Female | English |
| Polly | Bitter
| Female | English |
| Purdy | Variation on pretty. | Unisex | |
| Ratboy | | Unisex | Hebrew |
| Razor | A sharp-edged cutting instrument used to remove hair. | Unisex | |
| Reaper | | Unisex | |
| Rhino | | Unisex | |
| Riley | courageous | Female | Irish |
| Roxy | From Roxanne - Brilliant dawn | Female | English |
| Ruby | Jewel
| Female | Latin |
| Sadie | Princess
| Female | English |
| Santana | Little Saint | Female | Spanish |
| Sarah | Princess
| Female | Hebrew |
| Scarlett | Red | Female | English |
| Selene | after the Greek godess of the moon | Unisex | |
| Shaft | | Unisex | |
| Shaggy | Bushy and matted (hair), unkempt. | Unisex | |