Cognomen Cavlek (Cavlek 
) , in the entire world, is a very rare last name. The cognomen Cavlek is habitual in Croatia, where it is a rare surname, Finland, and Canada, where it is an extremely rare surname. In absolute terms, the name is most common in Croatia, Finland, and Germany.
| VARIANT | COUNTRY |
|---|---|
| Cavlek | Finland, Canada, Croatia, Germany |