| Name | Meaning | Gender | Origin |
|---|
| Kujo | | Unisex | |
| Lady | A female title of nobility. | Female | |
| Lenny | brave lion | Male | English |
| Lexi | Greek, feminine form of Alexander, defending men | Female | English |
| Light | | Male | |
| Lilly | Lily | Female | English |
| Lily | Lily
| Female | English |
| Lucky | Having good luck. | Male | Word |
| Lucy | light: illumination.
| Female | English |
| Luigi | Famous fighter
| Male | Italian |
| Lulu | Pet form of the names Louise or Louella.
| Female | English |
| Luna | moon | Female | Latin |
| Mac | Son of
| Male | Scottish |
| Mack | Son of
| Male | Scottish |
| Maggie | Abbreviation of Margaret. A pearl.
| Female | English |
| Marmalade | | Unisex | |
| Matilda | battle-mighty | Female | |
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| Maximus | greatest | Male | Latin |
| Meowmeow | | Unisex | |
| Merlin | Character on Chocolate Frog card.
| Male | Welsh |
| Mickey | Abbreviation of Michael and Micah Who is like God?
| Male | English |
| Midnight | Intense darkness, the middle of the night | Male | English |
| Milkshake | | Male | |