| Name | Meaning | Gender | Origin |
|---|
| Kawaii | | Unisex | |
| Kaya | my elder sister | Female | Native |
| Kayo | | Male | |
| Kazuo | Harmonious Man | Unisex | Japanese |
| Keiko | Japanese for happy or beloved | Female | Japanese |
| Keitaro | Blessed | Unisex | Hebrew |
| Ken | Male Barbie Doll. | Male | English |
| Kenji | after Michael Kenji Shinoda, from the band Linkin Park | Male | Japanese |
| Kenshin | Sword, Heart | Unisex | Japanese |
| Kibou | Hope
| Male | |
| Kiku | Japanese for 'chrysanthemum' | Unisex | |
| Kimi | righteous | Female | Japanese |
| Kimiko | Child without equal.
| Female | |
| Kino | | Unisex | Hebrew |
| Kioko | Meets World With Happiness | Unisex | Japanese |
| Kita | north | Unisex | |
| Kobe | tortoise | Male | Swahili |
| Kohana | little flower | Unisex | |
| Koji | | Unisex | Hebrew |
| Koko | stork | Female | Japanese |
| Kujo | | Unisex | |
| Kyo | Approval, Ginger, Or Large | Unisex | Japanese |
| Madoka | | Unisex | Hebrew |
| Mai | brightness; coyote | Female | Japanese |
| Maiya | Beautiful forever.
| Female | |