| Name | Meaning | Details |
|---|---|---|
| Moira | Of The Sea Or Bitter | View Details |
| Molly | Of The Sea Or Bitter | View Details |
| Moran | Sea Warrior | View Details |
| Muireann | Of The Sea Or Bitter | View Details |
| Muriel | Sea Bright | View Details |
| Murphy | Descendant Of Sea Warrior | View Details |
| Murray | From The Sea Town | View Details |
| Murron | Sea Seal | View Details |
| Myrddin | Sea Fort | View Details |
| Nakima | "Noahs Sea" | View Details |
| Nanami | Seven Seas | View Details |
| Nautica | Of The Sea | View Details |
| Nehemiah | God Has Comforted | View Details |
| Nerina | Sea Nymph | View Details |
| Nerita | Sea Snail | View Details |