Hinterlandmuseum Biedenkopf Castle, Regional museum in Biedenkopf, Germany.

Hinterlandmuseum Biedenkopf Castle is a regional museum housed in a stone building with exhibition spaces arranged across three floors. The rooms display local crafts, former industries, and farming practices from the area.

The Geschichtsverein für den Kreis Biedenkopf, founded in 1907 with 83 members, opened an "Altertumsmuseum" in the castle's ground-floor rooms on 25 September 1908. Its core was Carl Pfeil I's private collection of about 250 objects; a bronze bust of him stands in the entrance. The castle closed in 1988 for roof repairs, and the museum reopened in April 1993 after a new didactic concept.

The museum displays traditional clothing, work tools, and household objects from the Hinterland region. These collections show how people lived and worked in this area long ago.

The museum is housed in a stone building with exhibitions spread across three floors. Visitors should allow time to move through the different rooms and explore the displays at a comfortable pace.

The building's roof dates to the 15th century and demonstrates advanced carpentry techniques from medieval times. This construction is a rare example of old craftsmanship that few visitors expect to find.