Cognomen Klokočovnik (Klokočovnik 
) , in the entire world, is a very rare family name. The cognomen Klokočovnik is habitual in Southern Europe, particularly Slovenia, where it is a rare surname, and Croatia.
| VARIANT | COUNTRY |
|---|---|
| Klokočovnik | Croatia, Slovenia |
| tomislav klokočovnik SI (b. 1956) |
|
|
| vesna klokočovnik SI (b. 1981) |
|