Burg Blomberg, Medieval castle in Blomberg, Germany.

Burg Blomberg is a castle in Blomberg, North Rhine-Westphalia, with three wings arranged on elevated ground overlooking the town. The complex dates from the 13th century and is surrounded by sturdy defensive walls, with two visible stories rising from its base.

The castle was probably built in the 13th century by the Edelherren zur Lippe together with the Counts of Schwalenberg and Sternberg. Simon I (1275–1344) made Blomberg his residence and had the fortress expanded. After severe destruction in the Soest feud (1414–1463), it was rebuilt as a two-storey three-wing complex; from 1449 the House of Lippe held it as a Hessian fief, and from 1560 it was remodelled in the Weser Renaissance style.

The castle was the residence of the Edelherren zur Lippe, who from 1528 held the title of Grafen zur Lippe. Simon I (1275–1344) chose Blomberg as his seat and alternated between the castle and Schloss Brake. From 1560 the complex was rebuilt in the Weser Renaissance style, with a white sandstone oriel by Hermann Wulff of Lemgo facing the courtyard.

The site is accessible through the main entrance at Burg 1, 32825 Blomberg and is frequently used for weddings and events. When planning a visit, keep in mind that it hosts many gatherings, so it is worth checking locally about access to tour the building itself.

The castle is surrounded by natural slopes, ramparts, and moats that originally protected both the fortress and the town below. These landscape features remain intact today and form a complete defensive system that is rarely seen so well preserved in this region.