| Name | Meaning | Gender | Origin |
|---|
| Olive | Olive | Female | English |
| Olivia | Elf army | Female | English |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Unisex | English |
| Orla | Golden princess | Female | Gaelic |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Unisex | English |
| Pandora | All gift | Female | Greek |
| Patches | | Unisex | Hebrew |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Penelope | Weaver | Female | Greek |
| Penny | Weaver | Female | Greek |
| Pepper | Pepper | Female | English |
| Pepsi | Brand of cola soft drink. | Unisex | English |
| Phoebe | Bright | Female | Greek |
| Piper | A pipe player | Female | English |
| Poppy | Poppy flower | Female | English |
| Precious | Loved | Female | English |
| Princess | Royal son | Female | English |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Remy | Abbreviation Of Remington. | Female | English |
| Rhys | Enthusiasm | Unisex | Welsh |
| Roman | Roman | Unisex | Latin |
| Rose | Rose | Female | Latin |
| Rosie | Rose | Female | Latin |
| Rowdy | Boisterous. Western Nickname. | Unisex | English |
| Roxanne | Star | Female | Persian |
| Roxie | Star | Unisex | Persian |
| Roxy | Star | Female | Persian |
| Royal | Regal | Unisex | English |
| Ruby | Red | Female | Latin |
| Rusty | Rusty, full of rust | Unisex | American English |