| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| KistiÑE | - | Basque | ||
| Kitti | - | Hungarian | ||
| Kiyoko | kee-yo-ko | Japanese | ||
| Kiyoshi | kee-yo-shee | Japanese | ||
| Kjeld | - | Danish | ||
| Kjell | SHEL | Swedish, Norwegian | ||
| Kjellfrid | - | Norwegian | ||
| Kjersti | - | Norwegian | ||
| Kjerstin | SHESH-tin (Swedish) | Norwegian, Swedish | ||
| Kjetil | - | Norwegian | ||
| KlĀRa | - | Latvian | ||
| KlÁRa | - | Hungarian, Czech, Slovak | ||
| Klaas | KLAH:S | Dutch, Low German | ||
| Klaes | - | Frisian | ||
| Klahan | - | Thai |