| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Koppel | - | Yiddish | ||
| Koralo | ko-RAH-lo | Esperanto | ||
| Koray | - | Turkish | ||
| Korbin | KAWR-bin | English (Modern) | ||
| Korey | KAWR-ee | English | ||
| Kori | KAWR-ee | English | ||
| Kornel | KAWR-nel (Polish) | Polish, Czech, Slovak | ||
| Kornelia | kawr-NE-lee-ah (German), kawr-NEL-yah (Polish) | German, Polish | ||
| Kornelija | - | Croatian, Serbian | ||
| Korrine | kə-REEN | English (Rare) | ||
| Kortney | KORT-nee | English (Modern) | ||
| Kory | KAWR-ee | English | ||
| Kostya | - | Russian | ||
| Kotone | ko-to-ne | Japanese | ||
| Kouki | ko:-kee | Japanese |