Fudbalski klub Borac Banja Luka is a Bosnian professional association football club, based in the city of Banja Luka, Bosnia and Herzegovina, and is the major part of the Borac Banja Luka Sports Society. Borac Banja Luka is one of the most popular football clubs in Bosnia and Herzegovina. The name Borac means "Fighter".

Banja Luka or Banjaluka is the second largest city in Bosnia and Herzegovina and the largest city of Republika Srpska, of which it is also the de facto capital. Banja Luka is the traditional centre of the densely-forested Bosanska Krajina region of northwestern Bosnia. According to the 2013 census, the city proper has a population of 138,963, while its administrative area comprises a total of 185,042 inhabitants.