| Name | Meaning | Gender | Origin |
|---|
| Lacy | Lacy | Female | English |
| Lance | Territory | Male | German |
| Lane | Lane | Unisex | English |
| Langston | Long stone | Male | English |
| Lauren | Man from Laurentum | Female | Latin |
| Laurence | Man from Laurentum | Male | Latin |
| Lavern | Woodland. | Unisex | English |
| Lawson | Man from Laurentum | Male | Latin |
| Leander | Lion Man | Male | Greek |
| Leo | Lion | Male | Latin |
| Leonard | Strong as the lion | Male | Germanic |
| Lesley | Holly Garden | Female | Gaelic |
| Leslie | Holly Garden | Female | Gaelic |
| Lester | From Leicester | Male | English |
| Liam | Will, desire and helmet, protection | Male | Germanic |
| Lincoln | Lake settlement, lake colony | Male | English |
| Lindsay | Uncertain, perhaps dark lake | Female | Gaelic |
| Lindsey | Lincoln island | Unisex | English |
| Llewellyn | Luminescent | Male | Welsh |
| Lloyd | Grey | Male | Welsh |
| Lonnie | Noble and ready/prompt | Male | Germanic |
| Louis | Fame and war | Male | Germanic |
| Mac | Son of | Male | Gaelic |
| Marion | Uncertain, maybe bitter | Female | Hebrew |
| Martin | From the god Mars | Male | Latin |
| Marvin | Uncertain, possibly eminent marrow | Male | Welsh |
| Mason | Bricklayer | Male | French |
| Maurice | Moor | Male | Latin |
| Maverick | Dissenter | Unisex | English |
| Max | Little Maximus | Male | Latin |