| Kaarina | | KAH:-ree-nah | Finnish | |
| Kaarle | | KAH:R-le | Finnish | |
| Kaarlo | | KAH:R-lo | Finnish | |
| Kai (1) | | KIE (German, Swedish, Finnish) | Frisian, German, Swedish, Norwegian, Danish, Finnish, Dutch | |
| Kaija | | KIE-yah | Finnish | |
| Kaisa | | KIE-sah (Finnish) | Finnish, Estonian | |
| Kaleva | | KAH-le-vah | Finnish | |
| Kalevi | | KAH-le-vee | Finnish | |
| Kalle | | KAHL-le (Finnish) | Swedish, Finnish | |
| Kari (2) | | KAH-ree | Finnish | |
| Karin | | KAH-rin (Swedish, German, Dutch), KAH-reen (Finnish), KER-ən (English), KAR-ən (English) | Swedish, Norwegian, Danish, German, Dutch, Finnish, English | |
| Karl | | KAHRL (German, Danish, English, Finnish) | German, Swedish, Norwegian, Danish, English, Finnish, Ancient Germanic | |
| Karoliina | | KAH-ro-lee:-nah | Finnish | |
| Kata | | KAH-tah (Finnish) | Hungarian, Finnish, Croatian | |
| Katariina | | KAH-tah-ree:-nah (Finnish) | Finnish, Estonian | |