| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Koby | KO-bee | English (Modern) | ||
| Kodey | KO-dee | English (Rare) | ||
| Kody | KO-dee | English (Modern) | ||
| Kofi | - | Western African, Akan | ||
| Kohaku | ko-hah-koo | Japanese | ||
| Koharu | ko-hah-ṙoo | Japanese | ||
| Kohinoor | - | Various | ||
| Koit | - | Estonian | ||
| Kojo | - | Western African, Akan | ||
| Kokoro | ko-ko-ṙo | Japanese | ||
| Kolby | KOL-bee | English (Modern) | ||
| Koldo | - | Basque | ||
| Koldobika | - | Basque | ||
| Kole | KOL | English (Modern) | ||
| Kolleen | kah-LEEN | English (Rare) |