| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Krystina | - | English (Modern) | ||
| Krystine | - | English (Rare) | ||
| Krystle | KRIS-təl | English (Modern) | ||
| Ksenija | - | Serbian, Croatian, Macedonian, Slovene | ||
| Kumar | - | Indian, Hindi, Marathi, Bengali, Assamese, Odia, Gujarati, Punjabi, Tamil, Telugu, Malayalam, Kannad | ||
| Kunal | - | Indian, Hindi, Marathi, Bengali, Gujarati, Punjabi | ||
| Kunibert | KOO-nee-bert (German) | German, Ancient Germanic | ||
| Kuno | KOO-no (German) | German, Ancient Germanic | ||
| Kurt | KUWRT (German), KURT (English) | German, English | ||
| Kurtis | KUR-tis | English | ||
| Kurush | - | Ancient Persian | ||
| Kyla | KIE-lə | English | ||
| Kyle | KIEL, KIE-əl | English | ||
| Kylee | KIE-lee | English | ||
| Kyleigh | KIE-lee | English (Modern) |