| Name | Meaning | Gender | Origin |
|---|
| Max | Little Maximus | Male | Latin |
| Maximilian | Little Maximus | Male | Latin |
| Maxwell | Maccus's stream | Male | English |
| May | The fifth month of the year | Female | English |
| Mayer | Clever | Male | Hebrew |
| Mckenzie | Son of Coinneach | Female | Gaelic |
| Merrick | Moor | Male | Welsh |
| Merritt | Boundary gate | Unisex | English |
| Michele | Who is like God? | Female | Hebrew |
| Mick | Who is like God? | Male | Hebrew |
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Miller | Grinder of grain | Male | English |
| Mills | Mills | Unisex | English |
| Mo | Moor | Unisex | Latin |
| Moe | Moor | Male | Latin |
| Molder | | Unisex | Hebrew |
| Monte | Gomeric's hill | Male | French |
| Monty | Gomeric's hill | Male | French |
| Morgan | Uncertain, perhaps bright sea | Female | Welsh |
| Moriarty | Expert Seaman | Male | English |
| Moritz | Moor | Unisex | Latin |
| Morley | Grassland by the moor | Male | English |
| Morris | Moor | Male | Latin |
| Morrison | Son Of The Servant Of Mary | Unisex | English |
| Morse | Dark-Skinned: A Moor. Form Of Maurice. | Male | English |
| Moss | Drawn out of the water | Male | Hebrew |
| Murphy | Sea warrior | Male | Gaelic |
| Murray | Man of the sea | Male | Gaelic |
| Mya | Uncertain, perhaps mother or great one | Female | Greek |
| Neal | Champion | Male | Gaelic |