| Name | Meaning | Gender | Origin |
|---|
| Muireann | Long haired
| Female | Irish |
| Muirgheal | Knows the sea
| Female | |
| Murdock | victorious at sea | Unisex | |
| Muriel | myrrh; sea-bright; angel of June | Female | Irish |
| Myra | sweet-smelling oil | Female | Greek |
| Mysti | Misty. | Unisex | English |
| Nadia | hope | Female | Russian |
| Nahla | a drink of water | Female | Arabic |
| Nana | A grandmother. | Female | English |
| Nanda | Joyful | Unisex | Hindi |
| Nebula | misty | Female | Latin |
| Nerida | Aboriginal for red water lily | Female | Greek |
| Nimbus | | Unisex | |
| Nun | | Unisex | |
| Nyla | winner | Female | Arabic |
| Oki | Ocean Centered | Unisex | Japanese |
| Ondine | little wave | Female | Latin |
| Orca | | Unisex | |
| Orman | spearman | Unisex | |
| Pearl | Precious jewel. A hard, rounded gem, usually white in colour | Female | Latin |
| Persephone | The daughter of Demeter and Zeus who was abducted by Hades but rescued by her mother and thereafter spent six months of the year on earth and six months in the underworld.
| Female | Greek |
| Pinar | | Unisex | Hebrew |
| Rainaa | Queen: Original name Raina
| Female | |
| Rainbow | | Female | |
| Ran | Lily, Purity | Unisex | Japanese |