| Name | M/F | Meaning |
|---|---|---|
| Karolek | ![]() |
Meaning : Strong. Used in : Polish, Russian |
| Kiril | ![]() |
Meaning : Noble. Used in : Greek, Russian |
| Kiryl | ![]() |
Meaning : Noble. Used in : Russian |
| Kolenka | ![]() |
Meaning : Of The Conquering People. Used in : Russian |
| Konstantine | ![]() |
Meaning : Constant. Used in : German, Swedish, Finnish, French, Latin, Russian |
| Kostenka | ![]() |
Meaning : Constant. Used in : Russian, American |
| Kostya | ![]() |
Meaning : Constant. Used in : German, Latin, Slavic, Russian, Ukrainian |