| Name | Meaning | Gender | Origin |
|---|
| Lola | Sorrows | Female | Spanish |
| Loman | Bare | Male | English |
| 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 |
| Mahon | Bear | Male | English |
| Major | Greater | Male | Latin |
| Manley | Common clearing | Male | English |
| Mannix | Little monk | Male | Gaelic |
| Mara | Bitter | Female | Hebrew |
| Matty | Gift of God | Unisex | Hebrew |
| Max | Little Maximus | Male | Latin |
| Maxi | Pet form of names starting with Max | Unisex | English |
| Maxy | Little Maximus | Unisex | Latin |
| Meara | Happy | Male | English |
| Melchior | King city | Male | Persian |
| Melvin | Uncertain, possibly bad town | Male | English |
| Melvyn | Uncertain, possibly bad town | Male | English |
| Mercy | Compassion | Female | English |
| Miach | Myth Name | Male | Irish |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| 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 |