| Name | Meaning | Gender | Origin |
|---|
| Otis | One who hears well | Male | Greek |
| Otto | Wealth | Male | German |
| Oz | Divine | Male | English |
| Pablo | Small | Male | Latin |
| Page | Page | Male | English |
| Paisley | Church, cemetery | Unisex | English |
| Patches | | Unisex | Hebrew |
| Paxton | Settlement of Poecc | Male | English |
| Peaches | Red, yellow skinned fleshy fruit | Unisex | English |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Peyton | Settlement of PÅ“ga | Unisex | English |
| Pickles | Food flavored in a solution of vinegar | Unisex | English |
| Pip | Lover of horses | Unisex | Greek |
| Pipsqueak | | Unisex | Hebrew |
| Poco | Little. | Unisex | English |
| Prince | Royal son | Male | English |
| Puddles | | Unisex | Hebrew |
| Puff | Expelling breath, a gust of wind or a small amount of smoke. | Unisex | English |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Quentin | Fifth | Male | Latin |
| Quick | Speedy and fast. | Unisex | English |
| Rags | | Unisex | Hebrew |
| Rascal | One that is playfully mischievous | Unisex | English |
| Red | Red | Unisex | English |
| Reno | Ruler with counsel | Unisex | Germanic |
| Rich | Well built, hardy | Male | French |
| Rider | One who rides | Male | English |
| Riley | Rye clearing | Male | English |
| Ripley | Separate | Male | English |
| Rocket | To move swiftly and powerfully | Unisex | English |