| Name | Meaning | Gender | Origin |
|---|
| Leeloo | after the character in the movie The Fifth Element | Unisex | |
| Little John | | Male | |
| Lucifer | light-bearer | Male | Latin |
| Lucifer | light-bearer | Male | Latin |
| Lucky | Having good luck. | Male | Word |
| Meeko | | Male | |
| Meow | | Unisex | |
| Mickey Mouse | | Unisex | |
| Milo | Merciful.
| Male | Latinized |
| Milo | Merciful.
| Male | Latinized |
| Mirage | | Male | |
| Mittens | | Unisex | |
| Mouse | A small rodent with a long tail and small rounded ears. | Unisex | |
| Mr. Whiskers | | Unisex | |
| Mufasa | from The Lion King | Unisex | |
| Mulan | Magnolia Blossom | Unisex | Chinese |
| Munchkin | A very small elflike person. | Unisex | |
| Muppet | | Unisex | Hebrew |
| Mushu | | Unisex | |
| Nanny | Grace | Unisex | Hebrew |
| Nelson | son of a champion, son of Neil | Male | English |
| Nermal | | Unisex | |
| Nyan | | Unisex | |
| Oliver | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. Extending an olive branch signifies an offer of peace.
| Male | Latin |
| Owl | | Unisex | |