The Cathedral of Saint Bonaventure in Banja Luka is one of four Roman Catholic cathedrals in Bosnia and Herzegovina. It is the seat of the Banja Luka Bishopric currently led by Bishop Franjo Komarica. The cathedral was built in honor of Saint Bonaventure, a Franciscan theologian from the Middle Ages. It was constructed by Alfred Pichler in the 1970s after the original had been damaged in an earthquake.