| Name | Meaning | Gender | Origin |
|---|
| Leon | lion | Male | Greek |
| Leona | Like A Lion | Female | French |
| Leonard | lion-hearted | Male | |
| Leonardo | Lion-bold. Leonardo da Vinci is considered by many to be the most brilliant and creative men who ever lived.
| Male | Italian |
| Leonid | Lion | Male | Russian |
| Leopold | after Leopoldo in the movie Blood and Roses | Male | |
| Leslie | dweller in the gray castle; small meadow | Female | Scottish |
| Lester | Fortified place.
| Male | English |
| Lew | Refuge | Unisex | |
| Lion | Lion | Unisex | English |
| Lionel | Cousin of Lancelot
| Male | Latin |
| Livingston | dear friend's place | Male | English |
| Loni | Latin, lioness | Female | English |
| Lowell | Beloved | Male | |
| Lulu | Pet form of the names Louise or Louella.
| Female | English |
| Ma | | Unisex | Hebrew |
| Malka | queen | Female | Hebrew |
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| Mega | | Unisex | Hebrew |
| Mel | Scottish, settlement on infertile land | Male | English |
| Merle | Bright Sea | Male | English |
| Mishka | Russian for little bear | Unisex | |
| Mohatu | | Unisex | |
| Mole | | Unisex | Hebrew |