| Name | Meaning | Gender | Origin |
|---|
| Monarch | | Unisex | |
| Moonstone | | Unisex | |
| Mouse | A small rodent with a long tail and small rounded ears. | Unisex | |
| Mousy | | Unisex | Hebrew |
| Muffin | A small cup shaped cake | Unisex | |
| Mystic | | Unisex | Hebrew |
| Nickel | | Unisex | Hebrew |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Male | |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Male | |
| Patches | | Male | |
| Pebble | | Unisex | |
| Pebbles | after the character in 'The Flintstones' cartoons | Male | |
| Penguin | | Male | |
| Pepper | A spice or condiment. | Male | Sanskrit |
| Periwinkle | | Male | |
| Pewter | | Unisex | |
| Phoenix | Mystical Bird, Purple
| Male | Greek |
| Phoenix | Mystical Bird, Purple
| Male | Greek |
| Platinum | | Unisex | |
| Powder | Substance of fine particles. Light, dry snow. | Unisex | |
| Puffy | | Unisex | |
| Rhino | | Unisex | |
| Rocket | To move swiftly and powerfully | Male | Word |
| Rocky | rest | Male | English |