| Name | Meaning | Gender | Origin |
|---|
| Maddy | Pet form of Mad- names | Female | English |
| Maggie | Pearl | Female | Greek |
| Mckenzie | Son of Coinneach | Female | Gaelic |
| Melody | Melody | Female | Greek |
| Mimi | Uncertain, maybe bitter | Female | Hebrew |
| Minnie | Will, desire + helmet, protection | Female | Germanic |
| Missy | Bee | Female | Greek |
| Misty | Misty | Female | English |
| Mollie | Uncertain, maybe bitter | Female | Hebrew |
| Molly | Uncertain, maybe bitter | Female | Hebrew |
| Muffin | A small cup shaped cake | Unisex | English |
| Munchkin | A very small elflike person. | Unisex | English |
| Nefertiti | The beautiful woman has come | Unisex | Ancient Egyptian |
| Nipper | A small boy | Unisex | English |
| Peanut | Edible nuts eaten raw or roasted. | Unisex | English |
| Penny | Weaver | Female | Greek |
| Pip | Lover of horses | Unisex | Greek |
| Pippin | Foreigner, stranger | Unisex | Latin |
| Pipsqueak | | Unisex | Hebrew |
| Pixie | A fairy like creature. Playful and mischievous | Female | English |
| Poco | Little. | Unisex | English |
| Princess | Royal son | Female | English |
| Puddles | | Unisex | Hebrew |
| Pumpkin | Large round fruit with orange skin | Unisex | English |
| Rascal | One that is playfully mischievous | Unisex | English |
| Rina | Pet form of names in -rina | Female | English |
| Romy | Sea dew | Unisex | Latin |
| Rosie | Rose | Female | Latin |
| Roxy | Star | Female | Persian |
| Rusty | Rusty, full of rust | Unisex | American English |