| Name | Meaning | Gender | Origin |
|---|
| Kodiak | Large Alaskan brown bear. | Female | Russian |
| Kojak | | Male | Hebrew |
| Kujo | | Unisex | |
| Kyo | Approval, Ginger, Or Large | Unisex | Japanese |
| Lacy | Derived from Lacey which is a French Nobleman's surname brought to British Isles after Norman conquest.
| Male | |
| Langston | Town Of The Giant | Male | English |
| Lazarus | God's help | Male | Greek |
| Lester | Fortified place.
| Male | English |
| Liberty | Free
| Female | Word |
| Licorice | Confection made from the licorice root. | Unisex | |
| Lincoln | Capital of Nebraska, USA. Old English: home by the pond | Male | English |
| Loki | To Break | Male | Norse |
| London | fierce ruler of the world | Female | English |
| Lumpy | | Unisex | Hebrew |
| Macho | | Unisex | Hebrew |
| Mafia | | Unisex | Hebrew |
| Magnum | A large type of wine bottle. | Unisex | |
| Magnus | One who is great.
| Male | Latin |
| Majestic | | Unisex | Hebrew |
| Mako | | Unisex | Hebrew |
| Marble | | Unisex | |
| Marlboro | | Unisex | Hebrew |
| Maverick | One that dissents from the group. | Male | American |
| Maxi | Short for maximum - the greatest possible quantity | Female | |
| Maximus | greatest | Male | Latin |