Cazin is the largest city in the Una-Sana Canton, an entity within Bosnia and Herzegovina. It is situated in the northwest region of the country in Bosanska Krajina, located near the border with Croatia.
The municipality, which is frequently referred to as Cazinska Krajina, has a population of 66,149 inhabitants as of 2013. The town itself is positioned along the primary road connecting Bihać and Velika Kladuša.