Chudý hrádek, Castle ruin in the Česká Lípa District, Czech Republic

Chudý hrádek is a castle ruin on a sandstone rock above the Dolský potok valley, six kilometres northwest of Dubá. Its palace walls stand up to four metres high, and two cellars are cut into the sandstone on the north side. A well and two separate rock formations, once reached by bridges, lie within the core.

The castle was founded in the 14th century by the Berka family as a regional administrative center. It was gradually abandoned during the 16th century and left to deteriorate into the ruins visible today.

The castle's later names — Pustý hrádek, Poustka, Wüste Schloss, Paska and Buska — all refer to its abandoned state, and the nearby hamlet of Poustka took the same name. The German form Chudyhradek appears in records of 1622, when the estate of Johann Georg von Wartenberg was confiscated.

The green-marked trail runs through the Dolské údolí between Holany and Dřevčice, with a marked spur leading up to the ruin. The road between the two villages runs about one kilometre west of the trail, and several paths descend from it into the valley. Below the castle stands Dolský mlýn.

The name Chudý hrádek is not medieval: the castle was first called Hrádek, and only after its abandonment around 1560 did names like Pustý hrádek, Poustka and Wüste Schloss appear. The nearby hamlet Poustka took the same name.