Surname Obushak (Obushak 
, Обушак 
) , in the world, is a rare cognomen. The last name Obushak is habitual in Ukraine, where it is a rare surname, Australia, where it is a very rare surname, and Russia.
| VARIANT | COUNTRY |
|---|---|
| Obushak | Australia |
| Обушак | Russia, Ukraine |
| mykola obushak researcher |
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