| Name | Meaning | Gender | Origin |
|---|
| Miles | Uncertain, perhaps peaceful | Male | Germanic |
| Milo | Uncertain, perhaps peaceful | Male | Germanic |
| Mocha | Coffee of high quality. | Unisex | English |
| Moondust | | Unisex | Hebrew |
| Moxie | Ability to face difficulty with courage. | Unisex | English |
| Mozart | | Unisex | Hebrew |
| Muffin | A small cup shaped cake | Unisex | English |
| Muffy | | Unisex | Hebrew |
| Murphy | Sea warrior | Male | Gaelic |
| Mystic | | Unisex | Hebrew |
| Newton | New settlement, new enclosure | Male | English |
| Nibbler | | Unisex | Hebrew |
| Nicky | Victory of the people | Unisex | Greek |
| Niko | Victory of the people | Male | Greek |
| Oliver | Elf army | Male | French |
| Ollie | Elf army | Male | French |
| Onyx | A gemstone with bands of different colours. | Unisex | English |
| Oreo | American cookie brand consisting of two chocolate wafers with white cream filling. | Unisex | English |
| Oscar | Divine spear | Male | English |
| Othello | Wealth | Male | German |
| Owen | Well born, yew born | Male | Gaelic |
| Paisley | Church, cemetery | Unisex | English |
| Panda | A bear like Chinese mammal, with distinct black and white markings | Unisex | English |
| Panther | A black leopard | Unisex | English |
| Patches | | Unisex | Hebrew |
| Paws | | Unisex | Hebrew |
| Payton | Settlement of PÅ“ga | Male | English |
| Peaches | Red, yellow skinned fleshy fruit | Unisex | English |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Phantom | Something elusive. A ghost | Unisex | English |