Litoměřice Castle, Gothic castle in Litoměřice, Czech Republic

Litoměřice Castle, also called Hrádek, is a former Gothic royal castle in the northwest corner of Litoměřice's historic core. Its surviving palace, built under Wenceslaus IV, measures 42.5 by 18.5 metres and was pushed forward across the moat. The west wall survives in full length, along with parts of three towers—one square and two round.

The new castle was built under John of Luxembourg in the first half of the 14th century; its first written mention dates to 7 May 1359, when Charles IV allowed vineyards on Radobýl with tithe paid at his castle. Under Wenceslaus IV, Kunát Kaplíř ze Sulejovic built a massive palace pushed out in front of the town wall. After 1499 the abandoned castle served as a granary and wine store, burned in 1655, and from 1767 housed a brewery.

The castle's name Hrádek survives in local usage, and its palace hall now serves cultural and social events after reconstruction from the 1980s. The 1359 Litoměřice charter of Charles IV, which allowed vineyards on Radobýl with tithes paid at his castle, ties the site to the town's wine history.

The castle stands in the northwest corner of Litoměřice's historic core, where Okružní Street marks the line of the original town walls. The grounds are entered from the town side; the west wall survives along its full length, while the south and east walls are gone. The palace was rebuilt as a brewery in the 18th century and re-roofed in the 1980s, so its interior reflects later work rather than the 14th-century layout.

The castle's existence was almost forgotten until 1971, when Jan Muk's building-historical survey identified the remains; the 14th-century palace had been rebuilt as a brewery in the 19th century and hidden by later construction.