Cognomen Boriak (Boriak 
, Боряк 
, Борьяк ) , all around the world, is quite a rare surname. The cognomen Boriak is habitual in Ukraine, where it is quite a rare surname, Kyrgyzstan, where it is a rare surname, and Russia. Measured by absolute frequency, this name is the most popular in Ukraine, Russia, and India.
| VARIANT | COUNTRY |
|---|---|
| Boriak | Ukraine, Canada, United States, Malaysia, India |
| Боряк | Kyrgyzstan, Kazakhstan, Ukraine, Russia |
| Борьяк, Бориак | Russia |
| iwan boriak politician (b. 1904) |
|