| Name | Meaning | Gender | Origin |
|---|
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Mittens | | Unisex | Hebrew |
| Mo | Moor | Unisex | Latin |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |
| Mouse | A small rodent with a long tail and small rounded ears. | Unisex | English |
| Mutley | | Unisex | Hebrew |
| Nana | Grace | Unisex | Hebrew |
| Nancy | Grace | Female | Hebrew |
| Nanook | Polar bear | Unisex | Native American |
| Nikki | Victory of the people | Female | Greek |
| Nipper | A small boy | Unisex | English |
| Nugget | As in Chicken | Unisex | English |
| Odie | Woad hill | Unisex | English |
| Olive | Olive | Female | English |
| Pal | A friend, buddy, chum. | Unisex | English |
| Pansy | Thought | Female | English |
| Patches | | Unisex | Hebrew |
| Paws | | Unisex | Hebrew |
| Pearl | Pearl | Female | English |
| Pepper | Pepper | Female | English |
| Perdita | Lost | Female | Latin |
| Perla | Pearl | Female | Italian |
| Petey | Stone | Unisex | Greek |
| Petula | Impatient | Female | Latin |
| Pickles | Food flavored in a solution of vinegar | Unisex | English |
| Piglet | | Unisex | Hebrew |
| Pippin | Foreigner, stranger | Unisex | Latin |
| Pluto | Wealth, riches | Unisex | Greek |
| Pongo | One who smells. | Unisex | English |