Cognomen Кассик (Кассик 
, Kassik 
) , around the globe, is a rare surname. The family name Кассик is habitual in Austria, where it is a rare surname, Hungary, and Finland, where it is a very rare surname. Measured by absolute frequency, it is the most numerous in the United States, Germany, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Кассик | Russia |
| Kassik | Germany, Austria, Hungary, United States, Brazil |