Kazaginac is a village in the municipality of Tomislavgrad, Bosnia and Herzegovina. The village is also part of the smaller Buško Blato micro-region, consisting of those villages and settlements surrounding the lake known as Buško jezero. The roots of the name Kazaginac are thought to be Arabic and Turkish in origin. The Arabic word kaza means "district" while the Turkish aga refers to "master". Kazaginac thus refers to the property owned by the kazaga, a reference to Ottoman times where the land holding class were usually members of the ruling Muslim population.