Cognomen Chaplak (Chaplak 
, Чаплак 
) , in the world, is a very rare surname. The cognomen Chaplak is characteristic of Ukraine, where it is a rare surname, Russia, where it is a very rare surname, and Kazakhstan. Likewise, Chaplak is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chaplak | Turkey, Russia, India, United States |
| Чаплак | Ukraine, Russia, Kazakhstan |