Cognomen بوجاك (Bujak 
, بوجاك) , worldwide, is quite a common last name. The cognomen بوجاك is characteristic of Bosnia and Herzegovina, where it is quite a common surname, Poland, and Montenegro, where it is quite a rare surname. Not in comparison with a country's population, the name is most common in Poland, the United States, and Bosnia and Herzegovina. Likewise, بوجاك is the forename as well as the last name.