| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Kristupas | - | Lithuanian | ||
| KrisztiÁN | KREES-tee-ahn | Hungarian | ||
| Krisztina | KREES-tee-naw | Hungarian | ||
| Krsto | - | Croatian | ||
| Kruno | - | Croatian | ||
| Krunoslav | - | Croatian | ||
| Ksenija | - | Serbian, Croatian, Macedonian, Slovene | ||
| Kseniya | KSYE-nee-yah | Russian | ||
| Kshathra Vairya | - | Persian Mythology | ||
| Kshitij | - | Indian, Hindi, Marathi | ||
| Kshitija | - | Indian, Marathi, Hindi | ||
| Kuldeep | - | Indian (Sikh) | ||
| Kumar | - | Indian, Hindi, Marathi, Bengali, Assamese, Odia, Gujarati, Punjabi, Tamil, Telugu, Malayalam, Kannad | ||
| Kumaran | - | Tamil, Indian, Malayalam | ||
| Kumari | - | Hinduism, Indian, Hindi, Telugu |