| Name | Meaning | Gender | Origin |
|---|
| Knight | Noble, Soldier | Male | English |
| Krishna | dark, black | Male | Sanskrit |
| Kyo | Approval, Ginger, Or Large | Unisex | Japanese |
| Langston | Town Of The Giant | Male | English |
| Lava | Moulton Earth | Unisex | English |
| Lestat | | Unisex | Hebrew |
| Licorice | Confection made from the licorice root. | Unisex | |
| Lightning | | Unisex | Hebrew |
| Loki | To Break | Male | Norse |
| Lucifer | light-bearer | Male | Latin |
| Lucifer | light-bearer | Male | Latin |
| Lucky | Having good luck. | Male | Word |
| 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 |
| Magpie | | Unisex | |
| Manson | | Unisex | Hebrew |
| Matches | | Unisex | Hebrew |
| Maverick | One that dissents from the group. | Male | American |
| Merlin | Character on Chocolate Frog card.
| Male | Welsh |
| Midnight | Intense darkness, the middle of the night | Male | English |
| Mint | after the herb | Unisex | |
| Monster | A creature of frightening appearance | Unisex | |
| Mystic | | Unisex | Hebrew |
| Napoleon | Hound Dog from the AristoCats
| Male | Greek |