Burg Schweinheim, Medieval castle ruins in Euskirchen, Germany.

Burg Schweinheim is a medieval castle near Euskirchen where a corner tower and sections of fortified walls still stand today. These remains are incorporated into an active farming complex and show the dual-structure layout that medieval castles in this region typically had.

In 1333, a house, a farm, the village and a court at Schweinheim were recorded as a fief of the Duchy of Jülich; the castle's own foundation is otherwise undocumented. In the 19th century the outer bailey was demolished except for a corner tower and fragments of wall, and the site became a large farm.

The castle reflects how noble families built fortified homes to display their status in the region during the medieval period. These structures remain visible markers of the local landscape and tell of feudal organization in the Rhineland.

The castle ruins sit within an active farming property and are visible from outside during daylight, though the site is private land. It is best to view from the road or ask permission before entering the property.

The first German object identifiable as a piggy bank was found at Burg Schweinheim, reportedly once owned by the knight Spies von Büllesheim, together with medieval coins. The find brought the former moated castle public attention in recent years.