| Name | Meaning | Gender | Origin |
|---|
| Lavender | Lavender, A Purple Flower | Female | English |
| Layla | night | Female | Arabic |
| Layla | night | Female | Arabic |
| Lazar | God Is My Helper | Unisex | Hungarian |
| Leah | cow, weary one; glad tidings; mistress, ruler | Female | Hebrew |
| Lefty | Left handed person. Member of the political left. | Unisex | |
| Legend | A romanticised story from earlier times. One who achieves legendary fame. | Male | English |
| Lego | | Unisex | |
| Legolas | Tolkien, Lord of the Rings | Unisex | |
| Leia | Weary | Unisex | Hebrew |
| Lemmy | after Lemmy Kilmister of Motorhead | Unisex | |
| Leo | Lion.
| Male | Latin |
| Leon | lion | Male | Greek |
| Lester | Fortified place.
| Male | English |
| Lewis | Renowned fighter. Form of Louis.
| Male | English |
| Lex | Protector Of Mankind | Male | English |
| Lexis | Protector Of Mankind | Female | English |
| Lia | dependence | Female | Italian |
| Libby | Diminutive of Elizabeth.
| Female | English |
| Liberty | Free
| Female | Word |
| Libra | scales, balance | Female | Greek |
| Lickerish | | Unisex | Hebrew |
| Lightning | | Unisex | Hebrew |
| Lilac | Bluish Purple | Female | Latin |
| Lilly | Lily | Female | English |