| Name | Meaning | Details |
|---|---|---|
| Moira | Of The Sea Or Bitter | View Details |
| Molly | Of The Sea Or Bitter | View Details |
| Monahan | Descendant Of The Little Monk | View Details |
| Monchonsia | White Feather | View Details |
| Monroe | From The Hill | View Details |
| Montague | From The Pointed Hill | View Details |
| Montes | Mountains | View Details |
| Montgomery | From The Hill Of The Powerful Man | View Details |
| Montoya | From The Hills And Valleys | View Details |
| Moon | From The Moon | View Details |
| Moon-unit | One That Orbits The Moon | View Details |
| Morales | By The Mulberry Tree | View Details |
| Morley | From The Moor Field | View Details |
| Moroccan | From The Western Kingdom | View Details |
| Morocco | The Western Kingdom | View Details |