Burg Neurandsberg, Medieval castle ruins in Rattenberg, Germany.

Burg Neurandsberg is a ruined hilltop castle on the Schloßberg at 588 m above sea level, above the village of Neurandsberg in Rattenberg, Lower Bavaria. About four metres of the core castle's enclosing wall survive, along with remains of an outer wall with half-shell towers. The 1.8-hectare site is protected as a monument.

Around 1330, Friedrich Ramsperger built Neurandsberg just south of his family's seat at Altrandsberg. In 1436 Haimeran Heuraus captured it for Duke Albrecht III, and by 1550 the Freiherren von Notthafft held it; it later served as a prison. Swedish troops under Georg Christoph von Taupadel razed it in 1633, and only the church was rebuilt.

The ruins serve as a focal point for visitors exploring the region's medieval heritage, connecting people to the landscape and its historical roots. The site draws those interested in understanding how fortifications shaped settlement patterns in the Bavarian Forest.

The ruins are accessible via hiking trails that wind through the forest and offer varying difficulty levels. Visitors should be prepared for uneven ground and changing weather, particularly during the wetter seasons.

The pilgrimage church built between 1698 and 1700 stands over the underground remains of the castle chapel of Mariä Geburt, which dates from around 1460. Inside is a seated Mary with the infant Jesus that was moved here from the castle chapel, and the oldest surviving votive panel is from 1682.