Neu-Ems Castle, Medieval castle in Hohenems, Austria.

Neu-Ems Castle is a medieval hilltop fortress built on a mountainside east of Hohenems, overlooking the Rhine valley. The complex features residential buildings, a chapel, and defensive structures shaped to follow the natural slope of the terrain.

Construction began in 1343 under Knight Ulrich I von Ems, with approval from Emperor Louis IV of Bavaria. After being destroyed during the Appenzell Wars in 1407, the fortress was rebuilt and continued to serve as a seat of power in the region.

The castle chapel, installed on the ground floor in 1603, is now marked only by two lancet windows in the north wall. Its former winged altar, made by an Antwerp master around 1515–1520, has been kept at the Tyrolean State Museum in Innsbruck since 1835.

The castle has been privately owned since 1843 and is not open to visitors. From certain points in the valley or on the surrounding hillsides, the building can be seen from the outside.

The castle's chapel was installed on the ground floor in 1603; of it only two pointed-arch windows remain in the north wall. Its former winged altar, made by an Antwerp master around 1515–1520, has been kept at the Tyrolean State Museum in Innsbruck since 1835.