The Diocese of Antwerp (Latin: Dioecesis Antverpiensis) is a Latin Church ecclesiastical territory or diocese of the Catholic Church in Belgium. The diocese was restored in 1961. It is a suffragan in the ecclesiastical province of the metropolitan Archdiocese of Mechelen-Brussels. Its cathedra is found within the Cathedral of Our Lady.
The Cathedral of Our Lady (Dutch: Onze-Lieve-Vrouwekathedraal) is a Roman Catholic cathedral in Antwerp, Belgium. Today's seat of the Diocese of Antwerp started in 1352 and, although the first stage of construction was ended in 1521, has never been fully completed. It was constructed in the Gothic style by architects Jan and Pieter Appelmans. It contains a number of significant works by the Baroque painter Peter Paul Rubens, as well as paintings by artists such as Otto van Veen, Jacob de Backer and Marten de Vos. The cathedral is the largest Gothic church in Belgium, with its tower rising 123 meters (404 ft) over the city.
The belfry of the cathedral is included in the Belfries of Belgium and France entry in the list of UNESCO World Heritage Sites.