| Name | Meaning | Gender | Origin |
|---|
| Lenny | brave lion | Male | English |
| Leo | Lion.
| Male | Latin |
| Levi | United | Male | Hebrew |
| Liam | Form of William.
| Male | Irish |
| Lilah | The Lily | Unisex | |
| Lincoln | Capital of Nebraska, USA. Old English: home by the pond | Male | English |
| Lion | Lion | Unisex | English |
| Livingston | dear friend's place | Male | English |
| Logan | little hollow | Male | Scottish |
| Lorenzo | Form of Lawrence. Lorenzo de' Medici was a patron of Michaelangelo and Da Vinci.
| Male | Italian |
| Lou | Famous Warrior | Male | English |
| Louis | famed warrior | Male | |
| Luca | man from Lucania | Male | Italian |
| Lucas | Form of Luke light: illumination.
| Male | Latin |
| Lucie | Light | Unisex | French |
| Luka | Of Lucania | Unisex | Russian |
| Luke | Light | Male | Greek |
| Maddox | Beneficient | Male | Welsh |
| Magnus | One who is great.
| Male | Latin |
| Marco | warlike | Male | Italian |
| Marion | bitter | Male | |
| Marlowe | after Philip | Male | English |
| Marmaduke | leader of the seas | Male | Irish |
| Mars | God Of War | Male | Latin |
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male | |