Cognomen Mikulyak (Mikulyak 
, Микуляк 
) , globally, is quite a rare family name. The surname Mikulyak is habitual in Eastern Europe, particularly Ukraine, where it is quite a rare surname, Czechia, where it is a rare surname, and Russia. Not in comparison with a country's population, it is commonest in Ukraine, Russia, and Kazakhstan.
| VARIANT | COUNTRY |
|---|---|
| Mikulyak | Russia, Czechia, Hungary, United States, Ukraine |
| Микуляк | Kazakhstan, Ukraine, Belarus, Russia |
| artur mikulyak researcher |
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