| Name | Meaning | Gender | Origin |
|---|
| Ophelia | Help | Female | Greek |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Unisex | English |
| Paisley | Church, cemetery | Unisex | English |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Unisex | English |
| Pandora | All gift | Female | Greek |
| Patches | | Unisex | Hebrew |
| Payton | Settlement of PÅ“ga | Male | English |
| Peaches | Red, yellow skinned fleshy fruit | Unisex | English |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Pearl | Pearl | Female | English |
| Pebbles | After the character in 'The Flintstones' cartoons | Female | English |
| Penelope | Weaver | Female | Greek |
| Penny | Weaver | Female | Greek |
| Pepper | Pepper | Female | English |
| Perdita | Lost | Female | Latin |
| Periwinkle | | Unisex | Hebrew |
| Petra | Stone | Female | Greek |
| Petunia | Type of flower | Female | English |
| Phoebe | Bright | Female | Greek |
| Pinky | For Pinky Lee, the painting, and the color of her nose | Unisex | English |
| Piper | A pipe player | Female | English |
| Pippa | Lover of horses | Female | Greek |
| Pippi | Lover of horses | Unisex | Greek |
| Pippin | Foreigner, stranger | Unisex | Latin |
| Pistachio | | Unisex | Hebrew |
| Pixie | A fairy like creature. Playful and mischievous | Female | English |
| Pocket | | Unisex | Hebrew |
| Polly | Bitter | Female | Hebrew |
| Pookie | | Unisex | Hebrew |
| Poppy | Poppy flower | Female | English |