| Name | Meaning | Gender | Origin |
|---|
| Molly | Bitter
| Female | English |
| Morgaine | Sea Circle | Unisex | French |
| Morgan | circle; sea | Female | Welsh |
| Morgana | sea-circle | Female | Female |
| Morgann | | Unisex | |
| Morgen | morning | Unisex | |
| Moselle | taken from water | Female | Hebrew |
| Muireann | Long haired
| Female | Irish |
| Muirgheal | Knows the sea
| Female | |
| Murdock | victorious at sea | Unisex | |
| Muriel | myrrh; sea-bright; angel of June | Female | Irish |
| Musetta | a ballad | Female | Latin |
| Nafisa | | Female | |
| Navi | to name | Female | Hebrew |
| Nerida | Aboriginal for red water lily | Female | Greek |
| Ondine | little wave | Female | Latin |
| Oona | lamb | Female | Irish |
| Pearl | Precious jewel. A hard, rounded gem, usually white in colour | Female | Latin |
| Philomena | song lover, friend, lover of the moon | Female | Greek |
| Pisces | Fish | Unisex | Latin |
| Pixie | A fairy like creature. Playful and mischievous | Female | |
| Pixie | A fairy like creature. Playful and mischievous | Female | Swedish |
| Reba | From Rebecca - The captivator | Female | Hebrew |
| Rhapsody | | Female | Hebrew |
| Rita | pearl, precious | Female | English |