| Name | Meaning | Gender | Origin |
|---|
| Milo | Merciful.
| Male | Latinized |
| Milo | Merciful.
| Male | Latinized |
| Missy | Informal term for young woman | Female | English |
| Mocha | Coffee of high quality. | Female | Arabic |
| Molasses | A thick dark brown sugary syrup | Unisex | |
| Monkey | | Unisex | |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | |
| Moritz | Dark Skinned | Unisex | German |
| Mousse | | Unisex | |
| Mr. Brown | | Unisex | Hebrew |
| Mudd | | Unisex | Hebrew |
| Muddy | | Unisex | |
| Muffin | A small cup shaped cake | Unisex | |
| Murphy Brown | | Unisex | Hebrew |
| Mylo | | Unisex | |
| Nestle | | Unisex | Hebrew |
| Niabi | fawn | Female | Native |
| Nutmeg | | Male | |
| Oatmeal | | Male | |
| Oprah | Fawn | Female | Hebrew |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |
| Orion | Son of Fire
| Male | Greek |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Peanut Butter | | Unisex | |