| Name | Meaning | Gender | Origin |
|---|
| Magnum | A large type of wine bottle. | Unisex | English |
| Magnus | Great | Male | Latin |
| Major | Greater | Male | Latin |
| Mango | After the character in Saturday Night Live | Unisex | English |
| Manley | Common clearing | Male | English |
| Mario | From the god Mars | Male | Latin |
| Marius | From the god Mars | Male | Latin |
| Maude | Powerful battler | Female | German |
| Max | Little Maximus | Male | Latin |
| Maxi | Pet form of names starting with Max | Unisex | English |
| Maxim | The greatest | Male | Latin |
| Mercy | Compassion | Female | English |
| Mika | Beautiful smell | Female | Japanese |
| Missy | Bee | Female | Greek |
| Misty | Misty | Female | English |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Monty | Gomeric's hill | Male | French |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |
| Moritz | Moor | Unisex | Latin |
| Mr. Baggins | A heroic female German Shepherd dog | Both | English |
| Nala | Loved | Female | African |
| Nellie | Abbreviation Of Eleanor Shining Light. | Female | English |
| Nemo | No one | Male | Latin |
| Nikki | Victory of the people | Female | Greek |
| Ninja | | Unisex | Hebrew |
| Ocean | Ocean | Female | Greek |
| Oscar | Divine spear | Male | English |
| Otis | One who hears well | Male | Greek |
| Otto | Wealth | Male | German |
| Pancho | From France | Male | Latin |