| Name | Meaning | Gender | Origin |
|---|
| Oberon | Noble bear | Unisex | German |
| Ophelia | Help | Female | Greek |
| Ouida | Fame and war | Female | Germanic |
| Paloma | Dove | Female | Spanish |
| Pandora | All gift | Female | Greek |
| 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 |
| Petal | A section of a flower | Unisex | English |
| Petunia | Type of flower | Female | English |
| Phila | Appealing | Female | Greek |
| Philadelphia | Brotherly love | Female | Greek |
| Philomena | To love strength | Female | Greek |
| Pickle | | Unisex | Hebrew |
| Piggy | | Unisex | Hebrew |
| Pita | The fourth girl baby | Unisex | African |
| Pixie | A fairy like creature. Playful and mischievous | Female | English |
| Pookie | | Unisex | Hebrew |
| Prancer | | Unisex | Hebrew |
| Precious | Loved | Female | English |
| Prema | Love, affection | Female | Sanskrit |
| Pretty | | Unisex | Hebrew |
| Princess | Royal son | Female | English |
| Priya | Beloved | Female | Sanskrit |
| Puddin | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Punkin | | Unisex | Hebrew |
| Puppy | | Unisex | Hebrew |
| Queen | Female ruler | Unisex | English |