| Name | Meaning | Gender | Origin |
|---|
| Jenna | White | Female | Cornish |
| Jennifer | White | Female | Cornish |
| Jett | Black gemstone | Male | English |
| Jetta | Jet-black gemstone | Female | English |
| Kala | The fine arts | Female | Sanskrit |
| Kanika | Dark cloth | Female | African |
| Karyan | The Dark One | Female | Armenian |
| Kearney | Victorious | Male | Gaelic |
| Keary | From County Kerry | Male | English |
| Keir | Little dark one | Male | Gaelic |
| Keira | Dark | Female | Gaelic |
| Keiran | Little dark one | Male | Gaelic |
| Kelby | Child's town | Male | English |
| Kera | Dark | Female | Gaelic |
| Keri | Country of the children of Ciar | Female | Gaelic |
| Kern | Seed | Male | German |
| Kerri | Country of the children of Ciar | Female | Gaelic |
| Kerry | Country of the children of Ciar | Female | Gaelic |
| Kiara | Clear | Female | Latin |
| Kiera | Dark | Female | Gaelic |
| Kieran | Little dark one | Male | Gaelic |
| Kira | Dark | Female | Gaelic |
| Kishi | Beach, seashore | Unisex | Japanese |
| Koby | Supplanter | Male | Hebrew |
| Kolby | Coalworker | Male | English |
| Kyran | Little dark one | Male | Gaelic |
| Leslie | Holly Garden | Female | Gaelic |
| Lloyd | Grey | Male | Welsh |
| Mahogany | American evergreen tree valued for its hard, red-brown wood | Female | English |
| Malinda | Blending of 'mel' and 'inda' | Female | English |