| Name | Meaning | Gender | Origin |
|---|
| Lefty | Left handed person. Member of the political left. | Unisex | |
| Lindy | Serpent | Unisex | English |
| Lizzie | From Elizabeth - Consecrated to God | Female | English |
| Lou | Famous Warrior | Male | English |
| Louie | renowned warrier | Male | English |
| Louise | Renowned fighter. Feminine of Louis.
| Female | |
| Manny | God Is With Us | Male | English |
| Manuel | God is with us | Male | Spanish |
| Mark | warlike | Male | Latin |
| Matty | Gift Of G-D | Unisex | Hebrew |
| Maud | strength in battle | Female | English |
| Maxine | greatest | Female | Latin |
| May | bitter | Female | English |
| Mel | Scottish, settlement on infertile land | Male | English |
| Melissa | bee, honey | Female | Greek |
| Melvin | Chief
| Male | English |
| Memphis | City Of Moph | Male | Hebrew |
| Michael | who is like God | Male | Hebrew |
| Mickey | Abbreviation of Michael and Micah Who is like God?
| Male | English |
| Miguel | Spanish form of Michael God like
| Male | Spanish |
| Mike | Hebrew, who is like God? | Male | English |
| Molly | Bitter
| Female | English |
| Monte | Powerful Mountain | Male | English |
| Mugsy | | Unisex | Hebrew |
| Napoleon | Hound Dog from the AristoCats
| Male | Greek |