Cognomen Čeplak (Čeplak 
) , in the entire world, is a very rare family name. The last name Čeplak is habitual in Southern Europe, particularly Slovenia, where it is quite a rare surname, and Croatia, where it is a very rare surname.
| jolanda čeplak athletics competitor, SI (b. 1976) |
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| metka mencin čeplak SI |
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| barbara čeplak SI |
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