Last name كيرل (Kerle 
, Curl 
, Kerrl 
) , in the entire world, is quite a common cognomen. The surname كيرل is characteristic of Slovenia, where it is quite a rare surname, Australia, and the United States. In absolute terms, it is the most numerous in the United States, the United Kingdom, and India. Very seldom, كيرل is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kerle | United Kingdom, Australia, India, Germany, United States |
| Curl | Democratic Republic of the Congo, United Kingdom, Australia, Germany, United States |
| Kerrl | Brazil, United States |