| Name | Meaning | Gender | Origin |
|---|
| Mather | Mower | Male | English |
| Mayhem | | Unisex | Hebrew |
| Mckenna | Son of Cionaodh | Unisex | Gaelic |
| Mikey | Who is like God? | Unisex | Hebrew |
| Mischief | One that causes minor trouble or disturbances | Unisex | English |
| Mitzi | Uncertain, maybe bitter | Unisex | Hebrew |
| Mocha | Coffee of high quality. | Unisex | English |
| Monster | A creature of frightening appearance | Unisex | English |
| Montgomery | Gomeric's hill | Male | French |
| Murphy | Sea warrior | Male | Gaelic |
| Neutron | | Unisex | Hebrew |
| Noodle | A narrow ribbon-like strip of dough | Unisex | English |
| Oswald | Uncertain, possibly divine power | Male | German |
| Parker | Gamekeeper of a park | Male | English |
| Peek-a-boo | | Unisex | Hebrew |
| Peppy | | Unisex | Hebrew |
| Pepsi | Brand of cola soft drink. | Unisex | English |
| Perky | | Unisex | Hebrew |
| Phoenix | Phoenix | Male | Greek |
| Pikachu | | Unisex | Hebrew |
| Piston | | Unisex | Hebrew |
| Pogo | | Unisex | Hebrew |
| Popcorn | Corn that when heated forms white edible puffs. | Unisex | English |
| Porsche | Pig | Unisex | Latin |
| Punk | | Unisex | Hebrew |
| Random | | Unisex | Hebrew |
| Ranger | Gamekeeper | Male | English |
| Reese | Enthusiasm | Male | Welsh |
| Rev | | Unisex | Hebrew |
| Rex | King | Male | Latin |