| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| KrzyŚ | KZHISH | Polish | ||
| Krzysiek | - | Polish | ||
| Krzysztof | KZHISH-tawf | Polish | ||
| Ksawery | ksah-VE-ri | Polish | ||
| Ksenia | KSEN-yah | Polish | ||
| Ksenija | - | Serbian, Croatian, Macedonian, Slovene | ||
| Kseniya | KSYE-nee-yah | Russian | ||
| Kshathra Vairya | - | Persian Mythology | ||
| Kuba | KUW-bah | Polish | ||
| Kudret | - | Turkish | ||
| Kukka | KOOK-kah | Finnish | ||
| Kuldeep | - | Indian (Sikh) | ||
| Kumar | - | Indian, Hindi, Marathi, Bengali, Assamese, Odia, Gujarati, Punjabi, Tamil, Telugu, Malayalam, Kannad | ||
| Kumara | - | Hinduism | ||
| Kumari | - | Hinduism, Indian, Hindi, Telugu |