| Name | Meaning | Gender | Origin |
|---|
| Kit Kat | | Unisex | |
| Kitkat | | Unisex | Hebrew |
| Kitten | | Unisex | |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty Gaga | | Unisex | |
| Kittycat | | Male | Hebrew |
| Kiwi | | Unisex | Hebrew |
| Knight | Noble, Soldier | Male | English |
| Kobe | tortoise | Male | Swahili |
| Kojak | | Male | Hebrew |
| Kookie | | Unisex | Hebrew |
| Kruger | | Unisex | Hebrew |
| Kuma | Bear (Japanese). Also to call - kuma (come) here. | Unisex | |
| Kwai | | Unisex | Hebrew |
| Kylie | Boomerang. Feminine form of Kyle.
| Female | Aboriginal |
| Lacey | Cheerful One | Female | English |
| Lady | A female title of nobility. | Female | |
| Lady Meowford | | Unisex | |
| Lambchop | | Unisex | Hebrew |
| Lana | Attractive | Female | English |
| Lance | knight's attendant; land | Male | English |
| Larry | Abbreviation of Lawrence or Laurence often used as an independent name.
| Male | English |
| Latifa | Pleasant, Gentle | Unisex | Arabic |