Family name Pyshniak (Пышняк 
, Pyshniak 
) , in the world, is a rare surname. The surname Pyshniak is characteristic of Belarus, where it is quite a rare surname, Russia, where it is a rare surname, and Kazakhstan, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Пышняк | Kazakhstan, Russia, Belarus |
| Pyshniak | Canada |