| Name | Meaning | Gender | Origin |
|---|
| Margaret | Pearl | Female | Greek |
| Margot | Pearl | Female | Greek |
| Marguerite | Pearl | Female | Greek |
| Maria | Bitter | Female | Hebrew |
| Marian | Uncertain, maybe bitter | Female | Hebrew |
| Marie | Bitter | Female | Hebrew |
| Marigold | Golden Mary | Female | English |
| Marilyn | Uncertain, maybe bitter | Female | Hebrew |
| Marina | From the god Mars | Female | Latin |
| Marion | Uncertain, maybe bitter | Female | Hebrew |
| Marjorie | Pearl | Female | Greek |
| Mark | From the god Mars | Male | Latin |
| Marshall | Horse servant | Male | Germanic |
| Martin | From the god Mars | Male | Latin |
| Marvin | Uncertain, possibly eminent marrow | Male | Welsh |
| Mary | Bitter | Female | Hebrew |
| Matilda | Powerful battler | Female | Germanic |
| Mattie | Powerful battler | Female | German |
| Maude | Powerful battler | Female | German |
| Maurice | Moor | Male | Latin |
| Max | Little Maximus | Male | Latin |
| May | The fifth month of the year | Female | English |
| Melvin | Uncertain, possibly bad town | Male | English |
| Meryl | Bright as the sea | Unisex | Gaelic |
| Mildred | Gentle strength | Female | English |
| Milton | Settlement by the mill | Male | English |
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Miranda | She who must be admired | Female | Latin |
| Miriam | Uncertain, maybe bitter | Female | Hebrew |
| Moira | Uncertain, maybe bitter | Female | Hebrew |