| Name | Meaning | Gender | Origin |
|---|
| Kong | Empty, hollow, void | Male | Chinese |
| Laddie | Young Attendant | Male | English |
| Lady | Lady | Unisex | English |
| Lancelot | Knight Of Arthur And Lover Of Guinevere | Male | French |
| Lemon | Beloved man | Unisex | English |
| Leo | Lion | Male | Latin |
| Lestat | | Unisex | Hebrew |
| Levi | Combined | Male | Hebrew |
| Licorice | Confection made from the licorice root. | Unisex | English |
| Lightning | | Unisex | Hebrew |
| Lil | Lily | Unisex | English |
| Lime | | Unisex | Hebrew |
| Lincoln | Lake settlement, lake colony | Male | English |
| Little | | Unisex | Hebrew |
| Lizzy | My God is a vow | Unisex | Hebrew |
| Lovely | | Unisex | Hebrew |
| Lucky | Fortunate | Unisex | English |
| Magic | Possessing qualities that produce baffling effects | Unisex | English |
| Magoo | | Unisex | Hebrew |
| Magpie | | Unisex | Hebrew |
| Major | Greater | Male | Latin |
| Makayla | Who is like God? | Unisex | Hebrew |
| Malakai | My messenger | Male | Hebrew |
| Mama | Saturday born | Unisex | African |
| Mango | After the character in Saturday Night Live | Unisex | English |
| Manny | God is with us | Male | Hebrew |
| Manson | Son of Magnus | Unisex | English |
| Marlow | Drained lake | Male | English |
| Marshall | Horse servant | Male | Germanic |
| Marshmellow | | Unisex | Hebrew |