Burg Amöneburg, Medieval castle ruins on basalt hill in Amöneburg, Germany.

Burg Amöneburg is a ruined hilltop castle on a 365-metre basalt cone above the town of Amöneburg in Hesse. It was built from local basalt, with window and door frames of sandstone. Remains include parts of the keep, several cellars, outer walls and a wide zwinger with flanking towers pierced by gun ports.

Mainz's archbishopric and its new burgrave Poppo von Reichenbach built the castle in 1145. Landgrave Ludwig of Thuringia destroyed it in 1165 on Emperor Frederick I's orders, because the Archbishop of Mainz backed Pope Alexander III, but it was rebuilt at once. From 1273 it housed the Mainz Landvogt, and it was wrecked again in 1646 and 1762; the buildings were demolished in 1839.

The castle grounds host the OpenEyes Film Festival annually, bringing contemporary cinema to this historical setting. The event draws visitors to experience art and history together in one place.

The castle can be reached on foot from Amöneburg via a marked path that leads uphill to the ruins. Visitors should prepare for steps and uneven ground when exploring the site.

The hill is a basalt dome from a volcanic vent active about eight million years ago, part of a chain of small vents linked to the Vogelsberg. On the steep east wall, metre-long basalt columns are exposed. The castle was built from this local basalt, with window and door frames of sandstone.