| Name | Meaning | Gender | Origin |
|---|
| Magic | Possessing qualities that produce baffling effects | Unisex | English |
| Magnum | A large type of wine bottle. | Unisex | English |
| Mahogany | American evergreen tree valued for its hard, red-brown wood | Female | English |
| Mandisa | Sweet | Female | African |
| May | The fifth month of the year | Female | English |
| Meg | Pearl | Female | Greek |
| Midnight | Intense darkness, the middle of the night | Unisex | English |
| Millie | Labour | Female | Germanic |
| Missy | Bee | Female | Greek |
| Mocha | Coffee of high quality. | Unisex | English |
| Mollie | Uncertain, maybe bitter | Female | Hebrew |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Montana | Mountainous | Unisex | Latin |
| Moon | Letters | Female | Korean |
| Moose | Largest member of the deer family. Moose have heavy brown bodies with humped shoulders and broad antlers. | Unisex | English |
| Muddy | | Unisex | Hebrew |
| Nutmeg | | Unisex | Hebrew |
| Onyx | A gemstone with bands of different colours. | Unisex | English |
| Panther | A black leopard | Unisex | English |
| Penny | Weaver | Female | Greek |
| Pepper | Pepper | Female | English |
| Pepsi | Brand of cola soft drink. | Unisex | English |
| Phantom | Something elusive. A ghost | Unisex | English |
| Pokey | | Unisex | Hebrew |
| Poppy | Poppy flower | Female | English |
| Puff | Expelling breath, a gust of wind or a small amount of smoke. | Unisex | English |
| Purdy | Variation on pretty. | Unisex | English |
| Roca | | Unisex | Hebrew |
| Rolo | Burmese | Unisex | English |
| Rootbeer | | Unisex | Hebrew |