| Name | Meaning | Gender | Origin |
|---|
| Max | Large spring | Male | English |
| Maximus | greatest | Male | Latin |
| Maya | Abbreviation of Amalia: variant of Maia.
| Female | Hebrew |
| Melody | song | Female | Greek |
| Mercy | compassion, pity | Female | English |
| Mickey | Abbreviation of Michael and Micah Who is like God?
| Male | English |
| Midge | Gnat like flies found near swamps. A little person | Female | English |
| Midnight | Intense darkness, the middle of the night | Male | English |
| Miko | | Unisex | |
| Minnie | Form of Williamina
| Female | English |
| Missy | Informal term for young woman | Female | English |
| Misty | misty.
| Female | English |
| Misty | misty.
| Female | English |
| Molly | Bitter
| Female | English |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Monroe | mouth of the Roe River; wheelwright | Female | Scottish |
| Moon | Moon | Female | American |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | |
| Motley | | Unisex | |
| Murphy | Sea warrior | Male | Irish |
| Myrtle | a flower, symbol of victory | Female | Greek |
| Nash | cliff | Male | English |
| Nelda | one who lives by the alder tree | Female | English |
| Neptune | | Male | |
| Nettie | Gracious | Female | English |