| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Koldobika | - | Basque | ||
| Kole | KOL | English (Modern) | ||
| Kolleen | kah-LEEN | English (Rare) | ||
| Koloman | KO-lo-mahn (German) | German (Rare), Slovak | ||
| Kolya | - | Russian | ||
| Komang | - | Indonesian, Balinese | ||
| Kondrat | KAWN-draht | Polish (Archaic) | ||
| Kondwani | kon-DWAH-nee | Southern African, Chewa | ||
| Konnor | KAHN-ər | English (Modern) | ||
| KonrÁD | - | Hungarian, Czech, Slovak | ||
| Konrad | KAWN-raht (German, Polish) | German, Swedish, Norwegian, Danish, Polish, Slovene | ||
| Konstancja | kawn-STAHNTS-yah | Polish | ||
| Konstantin | KAWN-stahn-teen (German), kahn-stahn-TEEN (Russian) | German, Hungarian, Russian, Serbian, Bulgarian, Macedonian | ||
| Konstanty | kawn-STAHN-ti | Polish | ||
| Konstantyn | kawn-STAHN-tin | Polish |