| Name | Meaning | Gender | Origin |
|---|
| Lottie | Free man | Female | German |
| Lucille | Light | Female | Latin |
| Lucky | Fortunate | Unisex | English |
| Lucy | Light | Female | Latin |
| Luna | Moon | Female | Latin |
| Mac | Son of | Male | Gaelic |
| Macey | Place of Maccius | Female | English |
| Maddy | Pet form of Mad- names | Female | English |
| Maggie | Pearl | Female | Greek |
| Marty | From the god Mars | Male | Latin |
| Max | Little Maximus | Male | Latin |
| Meeko | | Unisex | Hebrew |
| Mei | The youngest of sisters | Female | Chinese |
| Mia | Uncertain, maybe bitter | Female | Hebrew |
| Micro | | Unisex | Hebrew |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Millie | Labour | Female | Germanic |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Minx | | Unisex | Hebrew |
| Missy | Bee | Female | Greek |
| Misty | Misty | Female | English |
| Mohawk | Native American Tribe Name | Male | Native American |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Monster | A creature of frightening appearance | Unisex | English |
| Moon | Letters | Female | Korean |
| Munchkin | A very small elflike person. | Unisex | English |
| Murphy | Sea warrior | Male | Gaelic |
| Mya | Uncertain, perhaps mother or great one | Female | Greek |
| Nala | Loved | Female | African |