Loučná nad Desnou Castle, 17th-century château in Loučná nad Desnou, Czech Republic.

Loučná nad Desnou Castle is a free-standing complex of single-storey buildings in the southern part of the village. Its original core is a four-winged Renaissance building on a rectangular plan around a closed courtyard, to which a three-winged Baroque addition with corner towers on the south garden wing was attached. A chapel with a five-sided apse stands on the east side of the south wing; the south and west facades are divided by pilasters, and the courtyard front of the Baroque part has glazed arcades.

A smaller hunting lodge built by the Žerotín family at the end of the 15th century preceded the castle. In 1608 the Žerotíns began a Renaissance castle by an Italian building workshop, and in the last quarter of the 17th century it was expanded in Baroque style. The Velehrad Monastery bought it in 1772 and added the Chapel of Cyril and Methodius; the Klein brothers acquired it in 1844. Since 2009 it has been privately owned and closed to the public.

The castle and its park are listed as a cultural monument of the Czech Republic. The Velehrad abbot had a chapel dedicated to Cyril and Methodius added, elevated to parish church in 1785. The Klein brothers, enriched by the Sobotín ironworks, kept a painting collection here that is now in the Velké Losiny picture gallery.

The castle has been in private hands since 2009 and is closed to the public, so visits are limited to viewing the exterior. The grounds lie in the southern part of Loučná nad Desnou, where the one-storey wings, the corner towers of the garden wing and the chapel with its five-sided apse can be seen from outside.

The Klein brothers, who acquired the castle in 1844, founded a landscape park beside it with rare tree species. They also gathered a large painting collection at the castle, now part of the picture gallery at Velké Losiny Castle. The castle has been privately owned and closed to the public since 2009.