Stadtmuseum Siegburg, History museum in Siegburg, Germany

Stadtmuseum Siegburg is a history museum in the German town of Siegburg with four exhibition levels displaying archaeological finds, fossils, and historical objects from the region. The collections trace the area's development from prehistoric times through to the present day.

The collection began in 1903, when mayor Carl Plum prompted the founding of the Altertumsverein Siegburg to gather antiquities of Siegburg and the Sieg district, with emphasis on Siegburg ceramics and everyday objects. After a first exhibition in 1916 it moved between the Michaelsberg abbey, a small Heimatmuseum on the Kaiserstraße and, from 1960, a cultural centre there. The museum itself opened in May 1990 in the former Latin school on the Markt.

The collection highlights pottery that made Siegburg famous across Europe for centuries, and visitors can see the craftsmanship that shaped the town's identity. These ceramics reveal how local artisans contributed to the region's reputation far beyond its borders.

The museum occupies the former Latin school on the Markt, above the vaulted cellars of the medieval town hall; the 1988 conversion by architect Hartmut de Corné turned a former inner courtyard into a lowered event forum. Since 2014 a passage links it to the town library, and library-card holders enter the museum free of charge.

Since 2014, the museum shares a building with the town library in what was once a Latin school. This connection creates a shared space for history and knowledge in the heart of the city.