Family name קלרק (Clerck 
, Clerk 
, Klerk 
) , in the entire world, is a common surname. The cognomen קלרק is habitual in Namibia, where it is quite a common surname, Belgium, and Netherlands. Very seldom, קלרק is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Clerck | Belgium, South Africa, Netherlands, United States, Democratic Republic of the Congo |
| Clerk | Belgium, South Africa, Ghana, United States, Netherlands |
| Klerk | Namibia, Belgium, South Africa, United States, Netherlands |
| קלרק | Israel |