Assumption Cathedral, Catholic cathedral in Kalocsa, Hungary.

The Assumption Cathedral is a Baroque Catholic cathedral in Kalocsa, built between 1728 and 1774 on the site of earlier churches. Its ceiling stucco was made by Italian masters, and the altarpiece of the Assumption is by Vienna-born Leopold Kupelwieser. Statues of Kings Stephen I and Ladislas I stand before the main altar.

A church stood here from 1050, but the present Baroque cathedral was built between 1728 and 1774 under Cardinal Imre Csáky. The architect's name is unrecorded; András Mayerhoffer and Josef Emanuel Fischer von Erlach are both proposed. A fire damaged part of the church in the late 18th century.

The main altar shows the Assumption of Mary, painted by Vienna-based artist Leopold Kupelwieser, and statues of Hungarian kings Stephen I and Ladislas I stand nearby. These images shape the interior and show how religion and royal history connect in this place.

The cathedral is the seat of the Archdiocese of Kalocsa-Kecskemét, with Kecskemét's Church of the Ascension as co-cathedral. It remains an active parish and diocesan church, so visits may coincide with Masses and other services; time a visit around them rather than during them.

Many historical documents about the building's construction were lost in the 18th century, leaving questions about who the main architect was. This gap in the record makes it difficult to fully understand the exact story of how it came together.