| Name | Meaning | Details |
|---|---|---|
| Morocco | The Western Kingdom | View Details |
| Morrow | Row Of Cottages On The Moor | View Details |
| Mort | From The Moor Town | View Details |
| Mortimer | From The Still Pond | View Details |
| Morton | From The Moor Town | View Details |
| Morty | From The Name Mortimer | View Details |
| Moshe | Drawn Out Of The Water | View Details |
| Mostyn | From The Mossy Town | View Details |
| Moya | From Moya | View Details |
| Muireann | Of The Sea Or Bitter | View Details |
| Mullen | Lives In Or Near A Mill | View Details |
| Muni | Born When The Streams Rise | View Details |
| Murgatroyd | "From Margarets Clearing" | View Details |
| Murray | From The Sea Town | View Details |
| Musa | Saved From The Water | View Details |