| Name | Meaning | Gender | Origin |
|---|
| Meara | Happy | Male | English |
| Melchior | King city | Male | Persian |
| Melvin | Uncertain, possibly bad town | Male | English |
| Melvyn | Uncertain, possibly bad town | Male | English |
| Merrill | Bright as the sea | Male | Gaelic |
| Meryl | Bright as the sea | Unisex | Gaelic |
| Miach | Myth Name | Male | Irish |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Monroe | Mouth of the River Roe | Male | Gaelic |
| More | Dark Skinned | Unisex | English |
| Moriarty | Expert Seaman | Male | English |
| Murdock | Sea | Male | Gaelic |
| Murphy | Sea warrior | Male | Gaelic |
| Murray | Man of the sea | Male | Gaelic |
| Myles | Uncertain, perhaps peaceful | Male | Germanic |
| Neal | Champion | Male | Gaelic |
| Neel | | Male | Hebrew |
| Neely | Feminine Of Neil Champion. | Unisex | English |
| Neil | Champion | Male | Gaelic |
| Nelson | Son of Neal | Male | English |
| Nero | Stern | Male | Latin |
| Nevan | Sacred | Male | Gaelic |
| Nevin | Sacred | Male | Gaelic |
| Niall | Champion | Unisex | Gaelic |
| Niamh | Radiance | Unisex | Gaelic |
| Nigel | Champion From The Irish And Scottish Niall. | Male | Gaelic |
| Niles | People's Victory | Male | Gaelic |
| Nolan | Chariot-fighter, champion | Male | Gaelic |
| Noland | Chariot-fighter, champion | Unisex | Gaelic |
| Nolen | Chariot-fighter, champion | Male | Gaelic |