The Cathedral Basilica of St. MaryCatedrala romano-catolică Adormirea Maicii Domnului (; ) also called the Catholic Cathedral of the Assumption, is the cathedral church of the Latin Diocese of Oradea Mare. It is located at 2 Șirul Canonicilor Street, Oradea, 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.

See also Roman Catholicism in Romania

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