| Name | Meaning | Gender | Origin |
|---|
| Maverick | Dissenter | Unisex | English |
| Mavis | Song thrush | Male | English |
| Max | Little Maximus | Male | Latin |
| Maximilian | Little Maximus | Male | Latin |
| Maxwell | Maccus's stream | Male | English |
| Mercer | Vendor of sewing materials | Male | French |
| Meyer | He who illuminates | Male | Hebrew |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Miller | Grinder of grain | Male | English |
| Milton | Settlement by the mill | Male | English |
| Monroe | Mouth of the River Roe | Male | Gaelic |
| Morton | Settlement by or on a moor | Male | English |
| Murray | Man of the sea | Male | Gaelic |
| Napoleon | Sons of the mist, a race of dwarves | Male | Germanic |
| Nelson | Son of Neal | Male | English |
| Neville | New town | Male | French |
| Newton | New settlement, new enclosure | Male | English |
| Niles | People's Victory | Male | Gaelic |
| Norman | Thor mind, Thor courage | Male | Gaelic |
| Norris | Northener | Unisex | French |
| Oakley | From the oak meadow | Male | English |
| Oliver | Elf army | Male | French |
| Orson | Bear | Male | French |
| Oscar | Divine spear | Male | English |
| Otis | One who hears well | Male | Greek |
| Otto | Wealth | Male | German |
| Overton | Upper Town | Unisex | English |
| Owen | Well born, yew born | Male | Gaelic |
| Park | Unisexual Name Meaning "Cypress Tree" | Unisex | English |
| Parley | Pear wood | Unisex | English |