| Name | Meaning | Gender | Origin |
|---|
| Marshall | Man who looks after a nobleman's estate, keeper of the horses; steward | Male | |
| Mason | Worker in stone. | Male | English |
| Maverick | One that dissents from the group. | Male | American |
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| Michael | who is like God | Male | Hebrew |
| Mike | Hebrew, who is like God? | Male | English |
| Miles | of smiles | Male | Latin |
| Moustache | Hair or bristles on upper lip, or food or drink that sticks to upper lip. | Unisex | |
| Murphy | Sea warrior | Male | Irish |
| Nelson | son of a champion, son of Neil | Male | English |
| Neo | from The Matrix movies | Male | Latin |
| Nicholas | victorious people | Male | Greek |
| Oliver | The olive tree. The biblical olive tree symbolizes fruitfulness and beauty and dignity. Extending an olive branch signifies an offer of peace.
| Male | Latin |
| Omar | first son, disciple; gifted speaker; famous | Male | Arabic |
| Ore | | Unisex | Hebrew |
| Oscar | God's spear.
| Male | English |
| Oz | strength | Male | Hebrew |
| Panzer | | Unisex | Hebrew |
| Papa | | Unisex | |
| Parrot | | Unisex | |
| Patton | fighter's town | Male | English |
| Paul | small | Male | Latin |
| Perry | French form of Peter
| Male | English |
| Pershing | Piercing The Valley | Unisex | French |