| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Ketilri&Eth;R | - | Ancient Scandinavian | ||
| Kettil | - | Swedish | ||
| Ketut | - | Indonesian, Balinese | ||
| Kev | - | English | ||
| Kevan | - | Irish | ||
| Kevin | KEV-in (English) | English, Irish, French, German, Dutch, Swedish, Norwegian, Danish | ||
| Kevyn | KEV-in | English (Rare) | ||
| Kgosi | - | Southern African, Tswana | ||
| Khadijeh | - | Persian | ||
| Khamisi | - | Eastern African, Swahili | ||
| Khan | - | Urdu, Pashto | ||
| Khariton | - | Russian | ||
| Khasan | - | Chechen, Ossetian, Circassian, Ingush, Tatar, Bashkir | ||
| Khloe | KLO-ee | English (Modern) | ||
| Khodadad | - | Persian |