Cathedral Basilica of St. Mary, Oradea

The Cathedral Basilica of St. Mary (Catedrala romano-catolică Adormirea Maicii Domnului; nagyváradi Nagyboldogasszony székesegyház ) also called the Catholic Cathedral of the Assumption, is the cathedral church of the Latin Diocese of Oradea Mare. It is located in the city of Oradea, northwest Romania.

The basilica was built between 1752 and 1780, and was designed by Italian architect Giovanni Battista Ricca (1691-1757). After the death of the first architect, construction was completed by the Viennese Franz Anton Hillebrandt and the church was adorned with baroque decorations of Austria.