Family name 卡克 (Kac 
, Kark 
, 卡克 
) , throughout the world, is a common cognomen. The surname 卡克 is characteristic of Slovenia, where it is quite a common surname, Jersey, and Morocco (explore the name in all countries). Not in comparison with a country's population, it most frequently occurs in Morocco, the United Kingdom, and Kenya. Much less frequently, 卡克 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kac | Germany, Morocco, United Kingdom, United States, Slovenia |
| Kark | Australia, Germany, Morocco, United Kingdom, United States |
| 卡克 | China |
| Cocker | Australia, Germany, Kenya, United Kingdom, United States |