| Name | Meaning | Gender | Origin |
|---|
| Lucky | Fortunate | Unisex | English |
| Lucy | Light | Female | Latin |
| Luna | Moon | Female | Latin |
| Luther | People army | Male | Germanic |
| Mackenzie | Son of Coinneach | Male | Gaelic |
| Maddy | Pet form of Mad- names | Female | English |
| Magenta | A vivid purplish red colour | Unisex | English |
| Maggie | Pearl | Female | Greek |
| Magnus | Great | Male | Latin |
| Marcy | From the god Mars | Female | Latin |
| Marley | Pleasant wood | Female | English |
| Maura | Moor | Female | Latin |
| Max | Little Maximus | Male | Latin |
| Maxwell | Maccus's stream | Male | English |
| Meg | Pearl | Female | Greek |
| Merlin | Sea fort | Male | Welsh |
| Mia | Uncertain, maybe bitter | Female | Hebrew |
| Milly | Labour | Female | Germanic |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Mindy | Pet form of Melinda | Female | English |
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Mischief | One that causes minor trouble or disturbances | Unisex | English |
| Missy | Bee | Female | Greek |
| Misty | Misty | Female | English |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Monica | Uncertain, perhaps counsellor | Female | Latin |
| Mortimer | Dead sea | Male | French |
| Murphy | Sea warrior | Male | Gaelic |
| Nell | Abbreviation Of Eleanor Shining Light. | Female | English |
| Nemo | No one | Male | Latin |