| Name | Meaning | Gender | Origin |
|---|
| Liam | Form of William.
| Male | Irish |
| Lincoln | Capital of Nebraska, USA. Old English: home by the pond | Male | English |
| Lionel | Cousin of Lancelot
| Male | Latin |
| Lorenzo | Form of Lawrence. Lorenzo de' Medici was a patron of Michaelangelo and Da Vinci.
| Male | Italian |
| Lorrie | Laurel | Unisex | English |
| Lou | Famous Warrior | Male | English |
| Luc | man from Lucania | Male | |
| Luca | man from Lucania | Male | Italian |
| Lucas | Form of Luke light: illumination.
| Male | Latin |
| Luciano | Form of Luke. Light: illumination.
| Male | Italian |
| Lucio | Spanish form of Luke light
| Male | |
| Luis | Famous fighter
| Male | |
| Luke | Light | Male | Greek |
| Luther | Renowned warrior.
| Male | |
| Maddy | Of Magdala, Tower | Unisex | English |
| Magic | Possessing qualities that produce baffling effects | Male | Word |
| Magic | Possessing qualities that produce baffling effects | Male | Word |
| Magnus | One who is great.
| Male | Latin |
| Mal | Chief
| Male | |
| Malcolm | Royal Blood | Male | Scottish |
| Manny | God Is With Us | Male | English |
| Manuel | God is with us | Male | Spanish |
| Marat | | Unisex | Hebrew |
| Marcel | little hammer | Male | |
| Marco | warlike | Male | Italian |