| Name | Meaning | Gender | Origin |
|---|
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kiwi | | Unisex | Hebrew |
| Koko | stork | Female | Japanese |
| Kujo | | Unisex | |
| Lady | A female title of nobility. | Female | |
| Lexi | Greek, feminine form of Alexander, defending men | Female | English |
| Lilly | Lily | Female | English |
| Lily | Lily
| Female | English |
| Lucy | light: illumination.
| Female | English |
| Lulu | Pet form of the names Louise or Louella.
| Female | English |
| Luna | moon | Female | Latin |
| Maggie | Abbreviation of Margaret. A pearl.
| Female | English |
| Marmalade | | Unisex | |
| Matilda | battle-mighty | Female | |
| Meowmeow | | Unisex | |
| Millie | English, gentle strength | Female | English |
| Milly | Highborn Power | Unisex | English |
| Milly | Highborn Power | Unisex | English |
| Minnie | Form of Williamina
| Female | English |
| Mishka | Russian for little bear | Unisex | |
| Missy | Informal term for young woman | Female | English |
| Misty | misty.
| Female | English |
| Misty | misty.
| Female | English |