| Name | Meaning | Gender | Origin |
|---|
| Lady | Lady | Unisex | English |
| Lakota | Friend | Unisex | English |
| Lasher | | Unisex | Hebrew |
| Lear | Clearing | Male | Germanic |
| Lemon | Beloved man | Unisex | English |
| Lennon | Descendant of Leannán or Lonán | Male | Gaelic |
| Lestat | | Unisex | Hebrew |
| Lewis | Fame and war | Male | Germanic |
| Lexy | Defending men | Unisex | Greek |
| Lincoln | Lake settlement, lake colony | Male | English |
| Louie | Fame and war | Male | Germanic |
| Louis | Fame and war | Male | Germanic |
| Luca | Man from Lucania | Unisex | Greek |
| Lucky | Fortunate | Unisex | English |
| Luke | Man from Lucania | Male | Greek |
| Macaroni | A hollow tubed shaped pasta. | Unisex | English |
| Madison | Son of Maud | Unisex | English |
| Magic | Possessing qualities that produce baffling effects | Unisex | English |
| Magnum | A large type of wine bottle. | Unisex | English |
| Maisy | Pearl. Variant Of Margaret. | Unisex | English |
| Majestic | | Unisex | Hebrew |
| Major | Greater | Male | Latin |
| Mako | Child of truth | Unisex | Japanese |
| Mango | After the character in Saturday Night Live | Unisex | English |
| Manley | Common clearing | Male | English |
| Manny | God is with us | Male | Hebrew |
| Marcus | From the god Mars | Male | Latin |
| Marmaduke | Devotee of Maedoc | Male | Gaelic |
| Marvel | Miracle | Unisex | English |
| Mason | Bricklayer | Male | French |