| Name | Meaning | Gender | Origin |
|---|
| Philippa | Lover of Horses. Variant of masculine Philipp.
| Female | Greek |
| Phillipa | | Unisex | |
| Philomena | song lover, friend, lover of the moon | Female | Greek |
| Phoebe | bright one | Female | Greek |
| Phoebe | bright one | Female | Greek |
| Pierce | rock | Unisex | |
| Pippa | lover of horses | Female | English |
| Polly | Bitter
| Female | English |
| Polly | Bitter
| Female | English |
| Pollyanna | Greek or Latin version of Hannah, Hebrew, grace | Female | Combination |
| Pollyanna | Greek or Latin version of Hannah, Hebrew, grace | Female | Combination |
| 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 |
| Portia | pig, hog or doorway | Female | Latin |
| Priscilla | Of ancient lineage | Female | Latin |
| Prometheus | Forethought | Unisex | Greek |
| Prudence | caution | Female | |
| Rebecca | bound, tied | Female | Hebrew |
| Rhea | stream, mother; poppy | Female | Greek |
| Rhianna | Great queen, goddess, nymph | Unisex | Welsh |
| Rochelle | from the little rock | Female | |
| Rosalie | rose | Female | |
| Rosalind | Beautiful
| Female | Latin |
| Rosanna | Greek or Latin version of Hannah, Hebrew, grace | Female | Combination |
| Rose | Flower
| Female | Latin |