| Name | Meaning | Gender | Origin |
|---|
| Maxwell | Maccus's stream | Male | English |
| Meg | Pearl | Female | Greek |
| Mia | Uncertain, maybe bitter | Female | Hebrew |
| Mickey | Who is like God? | Unisex | Hebrew |
| Mighty | | Unisex | Hebrew |
| Mildred | Gentle strength | Female | English |
| Mini | Something smaller than others of its type | Unisex | English |
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Missy | Bee | Female | Greek |
| Mister | | Unisex | Hebrew |
| Misty | Misty | Female | English |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Mona | Little noble one | Female | Gaelic |
| Monet | Solitary | Unisex | French |
| Moxie | Ability to face difficulty with courage. | Unisex | English |
| Munchkin | A very small elflike person. | Unisex | English |
| Murphy | Sea warrior | Male | Gaelic |
| Nadia | Hope | Female | Russian |
| Napoleon | Sons of the mist, a race of dwarves | Male | Germanic |
| Nash | At the ash tree | Male | English |
| Natalie | Christ's birthday | Female | Italian |
| Natasha | (Christ's) birthday | Female | Latin |
| Nelly | Abbreviation Of Eleanor Shining Light. | Female | English |
| Nelson | Son of Neal | Male | English |
| Nemo | No one | Male | Latin |
| Nessa | From The Headland | Female | English |
| Neutron | | Unisex | Hebrew |
| Nibbles | | Unisex | Hebrew |
| Niles | People's Victory | Male | Gaelic |
| Nina | Strong | Female | Latin |