Falsterbohus, Medieval castle ruins in Falsterbo, Sweden

Falsterbohus is a castle ruin located on an artificial island near Falsterbo beach. The remains consist of outer walls and a surrounding moat that once protected the medieval fortification.

Danish rulers constructed this fortress in the mid-1200s to strengthen their control over the region. The castle eventually came under Hanseatic League control and gradually declined in importance.

The castle's rise followed the Skåne Market, the seasonal herring fair that shifted from Skanör to Falsterbo around 1400. The king's bailiff moved from Skanör Castle to Falsterbohus at the same time, so the fortress became the administrative seat beside the fair. The market declined in the 1400s, and when the bailiff moved to Malmöhus the castle lost its role.

Visitors can view the ruins directly at the site, where the remains are visible on the island. For deeper insight into the excavations and medieval history, nearby museums display artifacts and provide additional context.

The castle stood on an artificial square islet measuring 42 by 42 metres. A roughly 12-metre-wide inner moat was enclosed by a bank of similar width, itself surrounded by an outer moat about 12 metres wide. On the sea side the bank was founded on six large barges sunk as a base.