Burg Breitenbach, Medieval castle in Wetterzeube, Germany.

Burg Breitenbach is a castle complex on elevated ground in Wetterzeube with defensive walls, towers, and residential buildings from the medieval period. The construction uses stone and displays typical features of German castles of that era, including tiered ramparts and a central courtyard.

The site began as a royal court southwest of Zeitz, which a forged charter claims King Konrad III sold to the Bishop of Naumburg on 26 July 1138. From the mid-12th to the late 13th century the Breitenbuch family built a castle within the older 10th–11th-century earthwork and made it their seat. The castle passed between the bishops of Naumburg and the Margraves of Meissen; in 1306 Margrave Dietrich gave it to Count Simon of Stolberg, and around 1310 Albert Knut held it briefly as a fief. Two fires during the fighting of 1315 probably destroyed it, and in 1317 Count Heinrich of Stolberg sold it to the Bishop of Naumburg.

The name Breitenbach comes from the family von Breitenbuch, whose seat the castle was from the mid-12th to the end of the 13th century. A sign on the slope below the rampart marks where the Nazis built a Thingplatz; no traces of it are visible today.

Access to the castle is via marked hiking trails through the forest, with parking available in Wetterzeube. The terrain is naturally steep and weather can affect the paths, so sturdy footwear is recommended.

A sign on the slope below the rampart marks where the National Socialists built a Thingplatz; no traces of it are visible today (as of 2025). The residential tower next to the wall circuit, called Kempe, appears on a 19th-century map by Brinkmann as Kämpfe.