The Cathedral of Christ the Saviour (Serbian: Саборни Храм Христа Спаситеља, romanized: Saborni Hram Hrista Spasitelja) is a Serbian Orthodox church located in Banja Luka, Republika Srpska, Bosnia and Herzegovina.

During the German bombing on April 12, 1941, the church was hit and the altar section (apse) was significantly damaged.

During the time of the communist government in Yugoslavia, while many buildings were rebuilt, the demolished Cathedral was not allowed to be reconstructed.

The cathedral is built of red and yellow travertine stone, originating from Mesopotamia, whose quality (excavation and processing) is certified by Prof. Dr. Bilbija, an expert from the Belgrade Institute for Material Testing.

The liturgy was celebrated by 8 bishops with the clergy and deacons of the Diocese of Banja Luka, with the presence of tens of thousands of believers.