| Name | Meaning | Gender | Origin |
|---|
| Mojo | Good luck charm. | Unisex | |
| Momo | Peach | Unisex | Japanese |
| Momo | gangster from the movie Get Shorty | Unisex | |
| Monkey | | Unisex | |
| Monster | A creature of frightening appearance | Unisex | |
| Moo Moo | | Unisex | |
| Moses | saved; child; taken from water | Male | Egyptian |
| Mouse | A small rodent with a long tail and small rounded ears. | Unisex | |
| Mr. Kitty | | Unisex | Hebrew |
| Mufasa | from The Lion King | Unisex | |
| Muffin | A small cup shaped cake | Unisex | |
| Munchie | | Unisex | Hebrew |
| Munchkin | A very small elflike person. | Unisex | |
| Murphy | Sea warrior | Male | Irish |
| Mylo | | Unisex | |
| Neko | Japanese for 'cat' | Unisex | |
| Nemo | from the glen | Male | Greek |
| Nibbles | | Unisex | |
| Nicholas | victorious people | Male | Greek |
| Nietzsche | | Unisex | Hebrew |
| Nikki | Victorious People | Unisex | English |
| Niko | victory of the people | Male | Greek |
| Ninja | | Male | |
| Noodle | A narrow ribbon-like strip of dough | Unisex | |
| Nugget | as in Chicken | Unisex | |