| Name | Meaning | Gender | Origin |
|---|
| Mah | | Unisex | |
| Maia | nurse, mother, goddess of spring; great | Female | Greek |
| Mani | Jewel | Unisex | Hindi |
| Margaret | after Margaret Thatcher | Female | Greek |
| Mars | God Of War | Male | Latin |
| Martina | Warlike | Female | Latin |
| Masha | Beloved | Unisex | Russian |
| Meissa | after Lambda Orionis, one of the stars in the Orion constellation | Female | Arabic |
| Mercury | Trade God | Male | Latin |
| Metis | | Unisex | Hebrew |
| Mimosa | | Female | |
| Minoo | Paradise, Heaven | Unisex | Persian |
| Mira | admirable | Female | Latin |
| Miranda | Admirable
| Female | Latin |
| Mona | Gathered of the seed of a jimson weed
| Female | Irish |
| Moon | Moon | Female | American |
| Nash | cliff | Male | English |
| Nebula | misty | Female | Latin |
| Neptune | | Male | |
| Nevaeh | Heaven (Backwards) | Female | American |
| Newton | new town | Male | English |
| Norma | the pattern | Female | English |
| Nova | A star that suddenly becomes much brighter. | Female | Latin |
| Oberon | noble, bearlike | Male | English |
| Ophelia | Serpentine
| Female | Greek |