| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Katsu | kah-tsoo | Japanese | ||
| Katsuo | kah-tsoo-o | Japanese | ||
| Katsuro | kah-tsoo-ṙo: | Japanese | ||
| Katsurou | kah-tsoo-ṙo: | Japanese | ||
| Katya | KAH-tyah | Russian | ||
| Kaui | - | Hawaiian | ||
| Kaulana | - | Hawaiian | ||
| Kaur | - | Indian (Sikh) | ||
| Kaveh | - | Persian, Persian Mythology | ||
| Kaveri | - | Indian, Hindi | ||
| Kavi | - | Indian, Hindi | ||
| Kavita | - | Indian, Hindi, Marathi | ||
| Kavitha | - | Indian, Telugu, Tamil, Kannada | ||
| Kawacatoose | - | Native American, Cree | ||
| Kawehi | - | Hawaiian |