| Name | Meaning | Gender | Origin |
|---|
| Polly | Bitter
| Female | English |
| Polly | Bitter
| Female | English |
| Pookie | | Unisex | |
| Poppy | Flower with four crumpled petals in red, orange or white colours | Female | Latin |
| Poppy | Flower with four crumpled petals in red, orange or white colours | Female | Latin |
| Porkchop | | Unisex | Hebrew |
| Precious | One who is beloved, a darling. | Female | Latin |
| Primrose | first rose | Female | English |
| Princess | Female member of a royal family | Female | Word |
| Puddin | | Unisex | |
| Puddin | | Unisex | |
| Puddin | | Unisex | |
| Pumpkin | Large round fruit with orange skin | Male | |
| Punky | | Unisex | |
| Queen | A female sovereign | Female | Word |
| Rainbow | | Female | |
| Reba | From Rebecca - The captivator | Female | Hebrew |
| Rigby | Lives in the ruler
| Male | English |
| Riley | courageous | Female | Irish |
| Ripley | after the novel and the movie The Talented Mr. Ripley | Male | English |
| Rocky | rest | Male | English |
| Rococo | | Unisex | Hebrew |
| Roma | | Female | |
| Romeo | pilgrim to Rome | Male | Italian |
| Rose | Flower
| Female | Latin |