| Name | Meaning | Gender | Origin |
|---|
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Mini | Something smaller than others of its type | Unisex | English |
| Mops | | Unisex | Hebrew |
| Munchkin | A very small elflike person. | Unisex | English |
| Murphy | Sea warrior | Male | Gaelic |
| Myles | Uncertain, perhaps peaceful | Male | Germanic |
| Neo | New | Male | English |
| Nikko | Victory of the people | Male | Greek |
| Niles | People's Victory | Male | Gaelic |
| Ninja | | Unisex | Hebrew |
| Nipper | A small boy | Unisex | English |
| Noe | Rest:Consolation. Form Of Noah. | Male | English |
| Oliver | Elf army | Male | French |
| Oscar | Divine spear | Male | English |
| Otis | One who hears well | Male | Greek |
| Oz | Divine | Male | English |
| Patches | | Unisex | Hebrew |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Pedro | Stone | Male | Greek |
| Percy | Pierce valley | Male | French |
| Peter | Stone | Male | Greek |
| Pickles | Food flavored in a solution of vinegar | Unisex | English |
| Pierre | Stone | Male | Greek |
| Pip | Lover of horses | Unisex | Greek |
| Pipsqueak | | Unisex | Hebrew |
| Pixel | | Unisex | Hebrew |
| Pixie | A fairy like creature. Playful and mischievous | Female | English |
| Poco | Little. | Unisex | English |
| Pongo | One who smells. | Unisex | English |
| Prince | Royal son | Male | English |