| Name | Meaning | Gender | Origin |
|---|
| Milo | Merciful.
| Male | Latinized |
| Milo | Merciful.
| Male | Latinized |
| Mimi | Form of Williamina
| Female | English |
| Mimi | Form of Williamina
| Female | English |
| Minerva | after the Roman goddess of the hunt | Female | Latin |
| Minnie | Form of Williamina
| Female | English |
| Missy | Informal term for young woman | Female | English |
| Misty | misty.
| Female | English |
| Misty | misty.
| Female | English |
| Mittens | | Unisex | |
| Mocha | Coffee of high quality. | Female | Arabic |
| Molly | Bitter
| Female | English |
| Muffin | A small cup shaped cake | Unisex | |
| Murphy | Sea warrior | Male | Irish |
| Nala | African for love, after the character in the Lion King movies | Female | African |
| Nevaeh | Heaven (Backwards) | Female | American |
| Nico | people of victory | Male | Greek |
| Noah | Comfort
| Male | Hebrew |
| Noel | Christmas
| Male | |
| Nolan | Noble
| Male | Irish |
| Nora | Abbreviation of Eleanora light and Honora honor.
| Female | Irish |
| 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 |
| Olivia | Olive
| Female | Latin |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |