Burg Garz, Medieval castle in Temnitztal, Germany.

Burg Garz is a medieval low-noble village castle in Temnitztal, Brandenburg. Its nearly square residential tower, about 11 metres high, is built of fieldstone and brick with walls up to 1.40 metres thick. A polygonal timber-framed staircase tower erected in 1681 stands on one side. The tower was originally surrounded by ditches and a palisade.

The village of Garz was first documented in 1364, though it likely dates from the first decade of the 13th century, founded on a Slavic settlement site. The von Quast family is attested in Garz from 1419 in several branches; its best-known member, Albrecht Christoph von Quast (1613–1669), was general watchmaster and governor of Spandau fortress. The family was expropriated in 1945.

The name Garz likely derives from the Slavic gard or gord, meaning castle. The von Quast family, documented in Garz from 1419, included Albrecht Christoph von Quast (1613–1669), a general and governor of Spandau fortress. The residential tower served as living quarters until the early 18th century, then as a storage building.

The castle is privately owned and can be viewed from outside, with visitors expected to follow posted access rules. The best view of the building comes from the courtyard area, where it is important to stay clear of residential spaces.

The polygonal timber-framed staircase tower added to the south side in 1681 represents an unusual addition to the older stone structure. This feature shows how the castle adapted to practical needs across different centuries.