| Name | Meaning | Gender | Origin |
|---|
| Manson | | Unisex | Hebrew |
| Marlon | little hawk | Male | English |
| Maxwell | Capable
| Male | Scottish |
| Minerva | after the Roman goddess of the hunt | Female | Latin |
| Missy | Informal term for young woman | Female | English |
| Monkey | | Unisex | |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | |
| Mouse | A small rodent with a long tail and small rounded ears. | Unisex | |
| Mowgli | | Male | |
| Myra | sweet-smelling oil | Female | Greek |
| Nelly | Abbreviation of Eleanor shining light.
| Male | English |
| Nettie | Gracious | Female | English |
| Nora | Abbreviation of Eleanora light and Honora honor.
| Female | Irish |
| Nova | A star that suddenly becomes much brighter. | Female | Latin |
| Nutmeg | | Male | |
| Obediah | | Unisex | |
| Ocelot | | Unisex | Hebrew |
| Oliver | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. Extending an olive branch signifies an offer of peace.
| Male | Latin |
| Oscar | God's spear.
| Male | English |
| Owen | Young fighter
| Male | Welsh |
| Owl | | Unisex | |
| Pandora | talented one | Female | Greek |
| Panther | A black leopard | Male | |
| Parrot | | Unisex | |
| Pearl | Precious jewel. A hard, rounded gem, usually white in colour | Female | Latin |