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 | Malaysia, Canada, Ukraine, United States, India |
| Боряк | Kazakhstan, Russia, Kyrgyzstan, Ukraine |
| Бориак, Борьяк | Russia |
| iwan boriak politician (b. 1904) |
|