| Name | Meaning | Gender | Origin |
|---|
| Magic | Possessing qualities that produce baffling effects | Unisex | English |
| Magnum | A large type of wine bottle. | Unisex | English |
| Magnus | Great | Male | Latin |
| Manny | God is with us | Male | Hebrew |
| Marcel | Little Marcus | Male | Latin |
| Marco | From the god Mars | Male | Latin |
| Mario | From the god Mars | Male | Latin |
| Markel | Of Mars: The God Of War. | Male | American English |
| Marlin | A Form Of Merle. | Unisex | English |
| Marlow | Drained lake | Male | English |
| Marmite | | Unisex | Hebrew |
| Marshall | Horse servant | Male | Germanic |
| Martin | From the god Mars | Male | Latin |
| Maui | God of fire | Unisex | Hawaiian |
| Maurice | Moor | Male | Latin |
| Max | Little Maximus | Male | Latin |
| Maxim | The greatest | Male | Latin |
| Maybell | Beautiful 5Th Month | Unisex | English |
| Merlin | Sea fort | Male | Welsh |
| Michel | Who is like God? | Male | Hebrew |
| Micro | | Unisex | Hebrew |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Milli | Labour | Unisex | Germanic |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Milton | Settlement by the mill | Male | English |
| Mio | Beautiful cherry | Male | Japanese |
| Mischief | One that causes minor trouble or disturbances | Unisex | English |
| Mist | | Unisex | Hebrew |
| Mister | | Unisex | Hebrew |