Burg Haibach, Castle ruin in Haibach, Bavaria, Germany.

Burg Haibach is the ruin of a hilltop castle on the 520-metre Hofberg in the Hofberg district of Haibach, in the Lower Bavarian district of Straubing-Bogen. Substantial stretches of wall remain, and in the middle of the courtyard parts of the palace-like residential building from the early 18th century survive. The stable building has housed a museum since 2005.

The fortress was built during the Middle Ages to command trade routes and protect the holdings of a local noble family. Over time, military developments rendered it obsolete and the structure gradually deteriorated.

The ruins show how local nobility once defended their lands through fortified buildings that dominated the landscape. Walking around, visitors can see the layout and understand the defensive thinking of medieval times.

The site can be reached from Haibach village by following marked hiking paths, with parking available near the town center. Visitors should be prepared for uneven ground and keep clear of any unsafe wall sections.

The ruins display clear differences in construction methods between early and late medieval periods, visible in the varied brickwork and stonework. These details allow visitors to observe actual building techniques from different eras at the same site.