| Name | Meaning | Gender | Origin |
|---|
| Pepper | A spice or condiment. | Male | Sanskrit |
| Peppermint | | Male | Hebrew |
| Periwinkle | | Male | |
| Perth | From the thorn bush or thicket
| Male | Scottish |
| Petal | A section of a flower | Female | Greek |
| Petunia | trumpet-shaped flower | Female | English |
| Platinum | | Unisex | |
| Plum | | Female | |
| 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 |
| Posy | a bunch of flowers | Female | English |
| Primrose | first rose | Female | English |
| Puma | | Female | |
| Rain | | Male | |
| Rainbow | | Female | |
| Raven | Dark haired or wise
| Female | Word |
| Reef | | Male | Hebrew |
| River | | Male | |
| Riyaaz | garden of purity
| Male | |
| Riyad | Garden
| Male | Arabic |
| Robin | Famed: bright: shining Form of Robert popular since the medieval days of Robin Hood. Robinson: (English) Son of Robert Famed: bright: shining. Surname.
| Male | |
| Rosalie | rose | Female | |
| Rose | Flower
| Female | Latin |
| Rosemary | the rosemary plant | Female | Latin |
| Rosie | From Rose - The most beautiful of flowers | Female | English |