| Name | Meaning | Gender | Origin |
|---|
| Mohatu | | Unisex | |
| Mona | Gathered of the seed of a jimson weed
| Female | Irish |
| Mongo | after a character in the movie Blazing Saddles | Male | Yoruba |
| Monifa | I Am Lucky | Unisex | African Yoruba |
| Mori | forest | Male | Japanese |
| Morocco | | Male | Hebrew |
| Mosi | Navajo for cat | Unisex | |
| Mr. Bean | | Unisex | Hebrew |
| Mr. Bigglesworth | | Unisex | |
| Mufasa | from The Lion King | Unisex | |
| Muffin | A small cup shaped cake | Unisex | |
| Mulder | | Unisex | |
| Nala | African for love, after the character in the Lion King movies | Female | African |
| Nana | A grandmother. | Female | English |
| Negus | | Unisex | Hebrew |
| Nemo | from the glen | Male | Greek |
| Nimbus | | Unisex | |
| Nini | | Unisex | |
| Nkechi | meaning loyal | Unisex | |
| Nova | A star that suddenly becomes much brighter. | Female | Latin |
| Obi | heart | Male | African |
| 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 |
| Oni | Japanese for 'demon' | Unisex | |
| Oscar | God's spear.
| Male | English |
| Paws | | Male | |