| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Kai (3) | - | Hawaiian | ||
| Kaia | - | Norwegian, Estonian | ||
| Kailash | - | Indian, Hindi, Marathi | ||
| Kaimana | - | Hawaiian | ||
| Kaipo | - | Hawaiian | ||
| Kaisa | KIE-sah (Finnish) | Finnish, Estonian | ||
| Kaito | kah-ee-to | Japanese | ||
| Kaj (1) | KIE (Swedish) | Swedish, Danish, Norwegian | ||
| Kaja (1) | KAH-yah (Swedish, Estonian) | Norwegian, Danish, Swedish, Estonian, Slovene | ||
| Kaja (3) | KAH-yah | Estonian | ||
| Kajal | - | Indian, Hindi, Marathi | ||
| KajetÁN | - | Czech, Slovak, Hungarian | ||
| Kajus | - | Lithuanian | ||
| Kakalina | - | Hawaiian | ||
| Kala (2) | - | Hawaiian |