| Name | Meaning | Gender | Origin |
|---|
| Lily | Lily | Female | English |
| Lois | Battle Maiden | Female | Greek |
| Lola | Sorrows | Female | Spanish |
| Lucky | Fortunate | Unisex | English |
| Lucy | Light | Female | Latin |
| Luna | Moon | Female | Latin |
| Lydia | Noble kind | Female | Germanic |
| Maddy | Pet form of Mad- names | Female | English |
| Maggie | Pearl | Female | Greek |
| Magnum | A large type of wine bottle. | Unisex | English |
| Mara | Bitter | Female | Hebrew |
| Matty | Gift of God | Unisex | Hebrew |
| Maxi | Pet form of names starting with Max | Unisex | English |
| Maxy | Little Maximus | Unisex | Latin |
| Mercy | Compassion | Female | English |
| Millie | Labour | Female | Germanic |
| 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 |
| Moira | Uncertain, maybe bitter | Female | Hebrew |
| Mollie | Uncertain, maybe bitter | Female | Hebrew |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Mona | Little noble one | Female | Gaelic |
| Montana | Mountainous | Unisex | Latin |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |
| Morgan | Uncertain, perhaps bright sea | Female | Welsh |
| Munchkin | A very small elflike person. | Unisex | English |
| Muriel | Bright as the sea | Female | Gaelic |
| Neely | Feminine Of Neil Champion. | Unisex | English |