| Name | Meaning | Gender | Origin |
|---|
| Mikie | Who Is Like God | Unisex | English |
| Mimi | Form of Williamina
| Female | English |
| Mimi | Form of Williamina
| Female | English |
| Minx | | Unisex | |
| Missy | Informal term for young woman | Female | English |
| Misty | misty.
| Female | English |
| Misty | misty.
| Female | English |
| Mittens | | Unisex | |
| Moe | delivered | Male | English |
| Molly | Bitter
| Female | English |
| Monty | From Montgomer - The mountain hunter. | Male | English |
| Mookie | | Unisex | |
| Moses | saved; child; taken from water | Male | Egyptian |
| Mullet | | Unisex | Hebrew |
| Muppet | | Unisex | Hebrew |
| Mushu | | Unisex | |
| Myra | sweet-smelling oil | Female | Greek |
| Nacho | Small triangles of tortilla topped with cheese. | Male | Word |
| Nina | Girl
| Female | Russian |
| Noir | | Unisex | |
| Odin | Viking mythology: the allmighty god | Male | Old |
| Olive | kind one; olive tree, peace. Symbol of peace. A small oval fruit. | Female | English |
| 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 |
| Omar | first son, disciple; gifted speaker; famous | Male | Arabic |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |