| Name | Meaning | Gender | Origin |
|---|
| Max | Large spring | Male | English |
| Max | Large spring | Male | English |
| May | bitter | Female | English |
| Millie | English, gentle strength | Female | English |
| Milo | Merciful.
| Male | Latinized |
| Milo | Merciful.
| Male | Latinized |
| Minnie | Form of Williamina
| Female | English |
| Missy | Informal term for young woman | Female | English |
| Misty | misty.
| Female | English |
| Misty | misty.
| Female | English |
| Monet | Solitary | Female | French |
| Murray | The mariner, sailor | Male | Scottish |
| Myrtle | a flower, symbol of victory | Female | Greek |
| Nana | A grandmother. | Female | English |
| Nellie | the bright one | Female | English |
| Nero | stern | Male | Latin |
| Octavia | eighth | Female | Latin |
| Old Yeller | | Unisex | Hebrew |
| Olive | kind one; olive tree, peace. Symbol of peace. A small oval fruit. | Female | English |
| 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 |
| Olivia | Olive
| Female | Latin |
| Ophelia | Serpentine
| Female | Greek |
| Orson | Little bear
| Male | Latin |
| Patches | | Male | |
| Payton | From the fighter's farm
| Female | English |