| Name | Meaning | Gender | Origin |
|---|
| 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 |
| Morgan | Uncertain, perhaps bright sea | Female | Welsh |
| Morwenna | Maid | Female | Welsh |
| Moselle | Out of the water | Female | Hebrew |
| Moss | Drawn out of the water | Male | Hebrew |
| Mouse | A small rodent with a long tail and small rounded ears. | Unisex | English |
| Mya | Uncertain, perhaps mother or great one | Female | Greek |
| Nana | Grace | Unisex | Hebrew |
| Neel | | Male | Hebrew |
| Neely | Feminine Of Neil Champion. | Unisex | English |
| Nelia | Horn | Female | Latin |
| Nerissa | Sea sprite | Female | Greek |
| Nigel | Champion From The Irish And Scottish Niall. | Male | Gaelic |
| Nilima | | Female | Hebrew |
| Nola | Fair shoulder, white shoulder | Female | Gaelic |
| Nuala | Fair shoulder, white shoulder | Female | Gaelic |
| Nugget | As in Chicken | Unisex | English |
| Nutmeg | | Unisex | Hebrew |