| Name | Meaning | Gender | Origin |
|---|
| Marly | From The March Meadow | Female | English |
| Marnie | Pet form of Marna | Female | English |
| Marshmallow | A soft spongy sweet confectionery. Also a timid person. | Unisex | English |
| Mary | Bitter | Female | Hebrew |
| Mavis | Song thrush | Male | English |
| Maxine | Little Maximus | Female | Latin |
| May | The fifth month of the year | Female | English |
| Maya | Uncertain, perhaps mother or great one | Female | Greek |
| Meadow | A meadow | Female | English |
| Mei | The youngest of sisters | Female | Chinese |
| Melody | Melody | Female | Greek |
| Mercy | Compassion | Female | English |
| Mia | Uncertain, maybe bitter | Female | Hebrew |
| Millie | Labour | Female | Germanic |
| Mimi | Uncertain, maybe bitter | Female | Hebrew |
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Mitzi | Uncertain, maybe bitter | Unisex | Hebrew |
| Miya | Temple | Female | Japanese |
| Mocha | Coffee of high quality. | Unisex | English |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Moon | Letters | Female | Korean |
| Mopsy | Term of affection, a darling. | Unisex | English |
| Mouse | A small rodent with a long tail and small rounded ears. | Unisex | English |
| Muffin | A small cup shaped cake | Unisex | English |
| Munchkin | A very small elflike person. | Unisex | English |
| Myrtle | Myrtle | Female | English |
| Nadia | Hope | Female | Russian |
| Nala | Loved | Female | African |
| Nana | Grace | Unisex | Hebrew |
| Naomi | Beautiful, pleasant, delightful | Female | Hebrew |