| Name | Meaning | Gender | Origin |
|---|
| Minor | | Unisex | Hebrew |
| Mir | Peaceful | Unisex | Slavic |
| Mojo | Good luck charm. | Unisex | |
| Monet | Solitary | Female | French |
| Monster | A creature of frightening appearance | Unisex | |
| Moon | Moon | Female | American |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | |
| Moxie | Ability to face difficulty with courage. | Female | English |
| Mr. | | Unisex | |
| Myrtle | a flower, symbol of victory | Female | Greek |
| Nemesis | | Unisex | Hebrew |
| Nermal | | Unisex | |
| Nova | A star that suddenly becomes much brighter. | Female | Latin |
| Nugget | as in Chicken | Unisex | |
| Nyx | Greek goddess of night | Female | Greek |
| Octavia | eighth | Female | Latin |
| Olga | holy | Female | Russian |
| Olympia | of Mount Olympus, heavenly | Female | Greek |
| Ophelia | Serpentine
| Female | Greek |
| Oprah | Fawn | Female | Hebrew |
| Orange | Round citrus fruit originating in Southeast Asia. | Female | Fruit |
| Orange | Round citrus fruit originating in Southeast Asia. | Female | Fruit |
| Pabst | | Unisex | Hebrew |
| Pandora | talented one | Female | Greek |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |