| Name | Meaning | Gender | Origin |
|---|
| Madge | Pearl | Female | Greek |
| Magenta | A vivid purplish red colour | Unisex | English |
| Maggie | Pearl | Female | Greek |
| Magnolia | Magnol's flower | Female | Latin |
| Mahogany | American evergreen tree valued for its hard, red-brown wood | Female | English |
| Maize | | Unisex | Hebrew |
| Marigold | Golden Mary | Female | English |
| Marmara | Shining | Female | English |
| Marshmallow | A soft spongy sweet confectionery. Also a timid person. | Unisex | English |
| Mauli | Crown | Unisex | Sanskrit |
| Mauve | | Female | Hebrew |
| May | The fifth month of the year | Female | English |
| Meena | Fish | Female | Sanskrit |
| Mel | Uncertain, possibly bad town | Unisex | English |
| Melanctha | Black Flower | Female | Greek |
| Melanie | Black | Female | Greek |
| Melina | Honey | Female | Greek |
| Merle | Contracted form of Meriel | Female | English |
| Meryl | Bright as the sea | Unisex | Gaelic |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Midori | Green | Female | Japanese |
| Milk | | Unisex | Hebrew |
| Milky | | Unisex | Hebrew |
| Mina | Will, desire + helmet, protection | Female | Germanic |
| Minor | | Unisex | Hebrew |
| Misae | Beautiful sand painting | Unisex | Japanese |
| Misty | Misty | Female | English |
| Mocha | Coffee of high quality. | Unisex | English |
| Montsho | Black | Female | African |
| Mora | Peacock | Female | Sanskrit |