Cognomen Бріяк (Brijak 
, Бріяк 
) , in the entire world, is a very rare family name. The surname Бріяк is habitual in Croatia, where it is a rare surname, Georgia, where it is a very rare surname, and Ukraine, where it is an extremely rare surname. Likewise, Бріяк is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Brijak | Georgia, Croatia, United States, India, France |
| Бріяк | Ukraine |