| Name | Meaning | Gender | Origin |
|---|
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| Maximus | greatest | Male | Latin |
| Mickey | Abbreviation of Michael and Micah Who is like God?
| Male | English |
| Midget | A small or miniature version | Unisex | |
| Minnie | Form of Williamina
| Female | English |
| Missy | Informal term for young woman | Female | English |
| Misty | misty.
| Female | English |
| Misty | misty.
| Female | English |
| Molly | Bitter
| Female | English |
| Murphy | Sea warrior | Male | Irish |
| Oscar | God's spear.
| Male | English |
| Pax | peaceful | Male | Latin |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | |
| Penny | Greek, weaver | Female | English |
| Pepper | A spice or condiment. | Male | Sanskrit |
| Phoebe | bright one | Female | Greek |
| Phoebe | bright one | Female | Greek |
| Pip | Small seed of a fruit. Also "Pipsqueak" one that is small | Male | English |
| Pluto | The ninth and most distant planet from the sun | Male | |
| Precious | One who is beloved, a darling. | Female | Latin |
| Prince | Principal one: first. The rock musician Prince.
| Male | Latin |
| Princess | Female member of a royal family | Female | Word |
| Puddles | | Male | Hebrew |
| Pumpkin | Large round fruit with orange skin | Male | |