Cognomen Ptachek (Ptachek 
, Птачек 
) , across the world, is a very rare family name. The surname Ptachek is characteristic of Belarus, where it is a rare surname, Russia, where it is a very rare surname, and France.
| VARIANT | COUNTRY |
|---|---|
| Ptachek | France, Russia |
| Птачек | Russia, Ukraine, Belarus |