Wolfsburg Castle, Medieval castle in Neustadt an der Weinstrasse, Germany.

Wolfsburg Castle is a ruin perched on a rocky crag high above the Speyerbach river near Neustadt an der Weinstraße. The site rises roughly 130 meters (426 feet) above the river and commands views across the surrounding valleys.

The castle was probably built by Duke Ludwig the Kelheimer of Bavaria by the early 13th century to protect the road from Neustadt to Kaiserslautern. It was first mentioned in a feudal document in 1255 as Castrum Volfperg. In 1525, during the German Peasants' War, it was captured and plundered twice, and in 1635 imperial troops burned it down and razed it, after which it remained a ruin. In 1848, citizens of Neustadt held a national festival here and raised the black-red-gold flag.

The name Wolfsburg comes from the Wolfsberg hill and was recorded in 1255 as Castrum Volfperg. In 1848, during the March Revolution, Neustadt citizens who supported democracy held a national festival in the ruins and raised the black-red-gold flag. Since the 1970s the Wolfsburgverein Neustadt, with the city and heritage authorities, has carried out excavations and restoration, rebuilding large parts of the shield wall.

Access is via an old walking path that climbs from below and requires some effort. Wear sturdy shoes and allow time both for the climb and to explore the ruins at your own pace.

The castle's elongated rock spur allowed a structure only about 30 metres wide despite a length of roughly 140 metres. Its north side was cut off by a deep neck ditch hewn into the rock, backed by a shield wall whose corners were faced with bossed ashlar blocks.