| Name | Meaning | Gender | Origin |
|---|
| Nipper | A small boy | Unisex | English |
| Noel | Christmas | Male | English |
| Noodle | A narrow ribbon-like strip of dough | Unisex | English |
| Nugget | As in Chicken | Unisex | English |
| Oberon | Noble bear | Unisex | German |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Unisex | English |
| Orlando | Famous country | Male | Germanic |
| Oscar | Divine spear | Male | English |
| Paolo | Small | Male | Latin |
| Patches | | Unisex | Hebrew |
| Pax | Peace | Unisex | Latin |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Piglet | | Unisex | Hebrew |
| Pip | Lover of horses | Unisex | Greek |
| Pipsqueak | | Unisex | Hebrew |
| Pixel | | Unisex | Hebrew |
| Pizza | A baked shallow crust covered with tomato sauce, cheese and other toppings. | Unisex | English |
| Pluto | Wealth, riches | Unisex | Greek |
| Poco | Little. | Unisex | English |
| Primo | First | Male | Latin |
| Prince | Royal son | Male | English |
| Puddles | | Unisex | Hebrew |
| Puma | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Ramses | Son of Ra | Male | Ancient Egyptian |
| Rascal | One that is playfully mischievous | Unisex | English |
| Reese | Enthusiasm | Male | Welsh |
| Ricardo | Strong power | Male | French |
| Riley | Rye clearing | Male | English |
| Rocco | Battle cry | Male | Germanic |