| Name | Meaning | Gender | Origin |
|---|
| Marshall | Horse servant | Male | Germanic |
| Maverick | Dissenter | Unisex | English |
| Max | Little Maximus | Male | Latin |
| Maximus | The greatest | Male | Latin |
| Maynard | Mighty and brave | Male | Germanic |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Mocha | Coffee of high quality. | Unisex | English |
| Montana | Mountainous | Unisex | Latin |
| Monty | Gomeric's hill | Male | French |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |
| Mozart | | Unisex | Hebrew |
| Neo | New | Male | English |
| Nero | Stern | Male | Latin |
| Newton | New settlement, new enclosure | Male | English |
| Ninja | | Unisex | Hebrew |
| Nipper | A small boy | Unisex | English |
| Nugget | As in Chicken | Unisex | English |
| Nutmeg | | Unisex | Hebrew |
| Oliver | Elf army | Male | French |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Unisex | English |
| Oscar | Divine spear | Male | English |
| Otis | One who hears well | Male | Greek |
| Otto | Wealth | Male | German |
| Pablo | Small | Male | Latin |
| Paco | From France | Male | Latin |
| Paddy | Patrician | Male | Latin |
| Pal | A friend, buddy, chum. | Unisex | English |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Unisex | English |
| Parker | Gamekeeper of a park | Male | English |