Surname Bordulyak (Bordulyak 
) , all around the world, is an extremely rare cognomen. The family name Bordulyak is habitual in Eastern Europe, particularly Ukraine, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Bordulyak | Ukraine |
| marta tymofiyivna bordulyak Ph.D. Ivan Franko National University of Lviv 1996 |
|