| Name | Meaning | Gender | Origin |
|---|
| Lady | Lady | Unisex | English |
| Leo | Lion | Male | Latin |
| Lexi | Defending men | Female | Greek |
| Lexie | Defending men | Female | Greek |
| Liesel | My God is a vow | Female | Hebrew |
| Lilly | Lily | Female | English |
| Lily | Lily | Female | English |
| Lindsay | Uncertain, perhaps dark lake | Female | Gaelic |
| Lola | Sorrows | Female | Spanish |
| Louie | Fame and war | Male | Germanic |
| Lucky | Fortunate | Unisex | English |
| Lucy | Light | Female | Latin |
| Luke | Man from Lucania | Male | Greek |
| Luna | Moon | Female | Latin |
| Mac | Son of | Male | Gaelic |
| Mackenzie | Son of Coinneach | Male | Gaelic |
| Macy | Place of Maccius | Male | English |
| Maddie | Pet form of Mad- names | Unisex | English |
| Madison | Son of Maud | Unisex | English |
| Maggie | Pearl | Female | Greek |
| Marley | Pleasant wood | Female | English |
| Max | Little Maximus | Male | Latin |
| Maximus | The greatest | Male | Latin |
| Maya | Uncertain, perhaps mother or great one | Female | Greek |
| Mia | Uncertain, maybe bitter | Female | Hebrew |
| Mickey | Who is like God? | Unisex | Hebrew |
| Millie | Labour | Female | Germanic |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Mimi | Uncertain, maybe bitter | Female | Hebrew |
| Minnie | Will, desire + helmet, protection | Female | Germanic |