Family name Pletiak (Pletiak 
, Плетяк 
) , all over the world, is a rare surname. The cognomen Pletiak is characteristic of Eastern Europe, particularly Ukraine, where it is a rare surname, Poland, where it is a very rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Pletiak | Poland, France |
| Плетяк | Kazakhstan, Ukraine, Russia |