| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Kaj (1) | KIE (Swedish) | Swedish, Danish, Norwegian | ||
| Kaj (2) | KIE | Swedish (Rare) | ||
| Kaja (1) | KAH-yah (Swedish, Estonian) | Norwegian, Danish, Swedish, Estonian, Slovene | ||
| Kaja (2) | KIE-ah (Polish) | Polish, Slovene | ||
| Kaja (3) | KAH-yah | Estonian | ||
| KajetÁN | - | Czech, Slovak, Hungarian | ||
| Kajetan | kah-YE-tahn | Polish | ||
| Kajsa | KIE-sah | Swedish | ||
| Kaleb | KAY-ləb | English (Modern) | ||
| Kaleigh | KAY-lee, KA-lee | English (Modern) | ||
| Kalev (1) | - | Estonian | ||
| Kaleva | KAH-le-vah | Finnish | ||
| Kalevi | KAH-le-vee | Finnish | ||
| Kaley | KAY-lee | English (Modern) | ||
| Kali | KAH-lee (Hinduism) | Hinduism, Bengali, Tamil |