| Name | Meaning | Gender | Origin | 
|---|
| Mina | Will, desire + helmet, protection | Female | Germanic | 
| Mischief | One that causes minor trouble or disturbances | Unisex | English | 
| Misty | Misty | Female | English | 
| Monster | A creature of frightening appearance | Unisex | English | 
| Moon | Letters | Female | Korean | 
| Moondust |  | Unisex | Hebrew | 
| Moonlight |  | Unisex | Hebrew | 
| Morgana | Uncertain, perhaps bright sea | Female | Welsh | 
| Mystic |  | Unisex | Hebrew | 
| Ninja |  | Unisex | Hebrew | 
| Nyx | Night | Female | Greek | 
| Obsidian |  | Unisex | Hebrew | 
| October | Eighth | Unisex | English | 
| Onyx | A gemstone with bands of different colours. | Unisex | English | 
| Opal | Jewel, gem | Female | Sanskrit | 
| Osiris | Uncertain, perhaps throne of the eye | Unisex | Ancient Egyptian | 
| Paige | Page | Female | English | 
| Pandora | All gift | Female | Greek | 
| Panther | A black leopard | Unisex | English | 
| Patches |  | Unisex | Hebrew | 
| Patience | Patience | Female | English | 
| Pearl | Pearl | Female | English | 
| Pepper | Pepper | Female | English | 
| Peta | Stone | Female | Greek | 
| Phantom | Something elusive. A ghost | Unisex | English | 
| Phoebe | Bright | Female | Greek | 
| Piper | A pipe player | Female | English | 
| Pirate |  | Unisex | Hebrew | 
| Pluto | Wealth, riches | Unisex | Greek | 
| Presley | Priest clearing | Unisex | English |