| Name | Meaning | Gender | Origin |
|---|
| Peach | | Unisex | |
| Peaches | Red, yellow skinned fleshy fruit | Female | English |
| Peaches | Red, yellow skinned fleshy fruit | Female | English |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Pekoe | after orange pekoe tea | Unisex | |
| Penny | Greek, weaver | Female | English |
| Pepperoni | | Unisex | |
| Peter Pan | | Unisex | Hebrew |
| Pooh | | 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 |
| Prince Harry | | Unisex | |
| Punkin | | Unisex | |
| Radcliffe | Residence Name | Unisex | |
| Raspberry | | Unisex | |
| Rose | Flower
| Female | Latin |
| Rosie | From Rose - The most beautiful of flowers | Female | English |
| Rosso | | Unisex | |
| Rouge | | Unisex | |
| Ruby | Jewel
| Female | Latin |
| Rusty | Covered in rust - a brownish red colour. | Unisex | |
| Saffron | A cooking spice | Female | Spice |
| Sahara | the moon . The world's largest desert situated in northern Africa. | Female | Arabic |
| Scarlet | Scarlet coloured, deep red | Female | Color |
| Scarlett | Red | Female | English |