| Name | Meaning | Gender | Origin |
|---|
| Lois | Battle Maiden | Female | Greek |
| Lola | Sorrows | Female | Spanish |
| Luca | Man from Lucania | Unisex | Greek |
| Lucky | Fortunate | Unisex | English |
| Lucy | Light | Female | Latin |
| Luna | Moon | Female | Latin |
| Lydia | Noble kind | Female | Germanic |
| Mac | Son of | Male | Gaelic |
| Maddy | Pet form of Mad- names | Female | English |
| Maggie | Pearl | Female | Greek |
| Mandy | She who must be loved | Female | Latin |
| Mani | Jewel | Unisex | Sanskrit |
| Mara | Bitter | Female | Hebrew |
| Mate | Gift From God | Unisex | English |
| Matilda | Powerful battler | Female | Germanic |
| Matt | Gift of God | Male | Hebrew |
| Max | Little Maximus | Male | Latin |
| Maximus | The greatest | Male | Latin |
| Meeko | | Unisex | Hebrew |
| Mercy | Compassion | Female | English |
| Mickey | Who is like God? | Unisex | Hebrew |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Miki | Beautiful story | Female | Japanese |
| Miko | Crimson truth | Male | Japanese |
| Millie | Labour | Female | Germanic |
| Milly | Labour | Female | Germanic |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Mischief | One that causes minor trouble or disturbances | Unisex | English |
| Missy | Bee | Female | Greek |