Krásné Březno Castle, Renaissance château in Krásné Březno, Czech Republic.

Krásné Březno Castle is a Renaissance structure in the Czech location featuring traditional Saxon architectural elements such as double-height gallery tribunals and diamond-shaped portals. The complex houses St. Florian Church, whose interior spaces and historical collections are accessible to visitors through organized tours.

The Bünau knights bought the Blansko estate with Březnice village in 1528 and made it their seat. Jindřich z Bünau built a manor house in 1566–1568, and in 1597–1603 the economic wing was rebuilt as the Old Castle in Saxon Renaissance style, linked by a bridge to the chapel of the Virgin Mary, now St. Florian Church. The New Castle followed by 1628; after the Battle of the White Mountain the Bünaus returned to Saxony.

The village was called Březnice until 1867, then Březník, before taking the name Krásné Březno; the German name is Schönpriesen. The church of St. Florian, joined to the castle by a passage, keeps a small old cemetery with the graves of former patron lords. Its main altar dates from 1605.

The castle stands in Krásné Březno, a district of Ústí nad Labem, and houses the regional office of the National Heritage Institute. The church of St. Florian, linked to the castle by a passage, was restored in 2011–2013 and opened to the public. The courtyard of the New Castle was roofed over and now serves as a circulation and exhibition space.

The church's main altar dates from 1605, and its alabaster reliefs were restored between 2011 and 2013. A small old cemetery beside the church holds the graves of former patron lords of the estate.