| Name | Meaning | Gender | Origin |
|---|
| Manley | Common clearing | Male | English |
| Manny | God is with us | Male | Hebrew |
| Mara | Bitter | Female | Hebrew |
| Matilda | Powerful battler | Female | Germanic |
| Max | Little Maximus | Male | Latin |
| Maxi | Pet form of names starting with Max | Unisex | English |
| Maximus | The greatest | Male | Latin |
| Maxwell | Maccus's stream | Male | English |
| Maya | Uncertain, perhaps mother or great one | Female | Greek |
| Mercy | Compassion | Female | English |
| Mikey | Who is like God? | Unisex | Hebrew |
| Mindy | Pet form of Melinda | Female | English |
| Mint | After the herb | Unisex | English |
| Missy | Bee | Female | Greek |
| Misty | Misty | Female | English |
| 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 |
| Mufasa | From The Lion King | Unisex | English |
| Mush | | Unisex | Hebrew |
| Nami | Of great reknown | Female | Sanskrit |
| Nick | Victory of the people | Male | Greek |
| Nikki | Victory of the people | Female | Greek |
| Nugget | As in Chicken | Unisex | English |
| Nutmeg | | Unisex | Hebrew |
| Obie | O.B. | Unisex | English |
| Odette | Wealth | Female | Germanic |
| Oscar | Divine spear | Male | English |
| Owena | Well born, yew born | Female | Gaelic |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Pebbles | After the character in 'The Flintstones' cartoons | Female | English |