| Name | Meaning | Gender | Origin |
|---|
| Louie | Fame and war | Male | Germanic |
| Louisa | Fame and war | Female | Germanic |
| Luca | Man from Lucania | Unisex | Greek |
| Lucas | Man from Lucania | Male | Greek |
| Luciano | Light | Male | Latin |
| Lucky | Fortunate | Unisex | English |
| Lucy | Light | Female | Latin |
| Luke | Man from Lucania | Male | Greek |
| Luna | Moon | Female | Latin |
| Lydia | Noble kind | Female | Germanic |
| Mabel | Lovable | Female | French |
| Madeline | From Magdala | Female | Hebrew |
| Madison | Son of Maud | Unisex | English |
| Mae | The fifth month of the year | Female | English |
| Maggie | Pearl | Female | Greek |
| Magnus | Great | Male | Latin |
| Maisie | Pet form of Mairead | Female | Gaelic |
| Major | Greater | Male | Latin |
| Margaret | Pearl | Female | Greek |
| Marley | Pleasant wood | Female | English |
| Mason | Bricklayer | Male | French |
| Matilda | Powerful battler | Female | Germanic |
| Maverick | Dissenter | Unisex | English |
| Max | Little Maximus | Male | Latin |
| Maximus | The greatest | Male | Latin |
| Maya | Uncertain, perhaps mother or great one | Female | Greek |
| Memphis | City Of Moph | Female | Hebrew |
| Mia | Uncertain, maybe bitter | Female | Hebrew |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |