Heiden Museum, History museum in Heiden, Switzerland.

Heiden Museum is a history museum in this Appenzell region community and houses collections of natural history specimens, ethnographic objects, and historical artifacts. These holdings document the area's development across different periods.

The museum grew from two institutions: a natural history collection bought in 1859 by Heiden's reading societies from the estate of pastor Johann Konrad Rechsteiner (1797–1858) of Eichberg, and a historical museum started in 1874 by the Historisch-Antiquarischer Verein. Both moved into the post office building at Kirchplatz from 1950; the historical section was redesigned in 2024.

The museum displays how Heiden developed into a popular health resort in the 1800s and attracted visitors from across Europe seeking wellness. Visitors can see in the exhibits how this transformation shaped local life and changed the character of the town.

The museum is located in the post office building at Kirchplatz in the town center and is easy to find. Visitors should check in advance if they want a guided tour, as these are available for groups.

The museum's natural history holdings began in 1859, when Heiden's reading societies bought part of the collection of the pastor and naturalist Johann Konrad Rechsteiner (1797–1858) from Eichberg. The shells, snails, minerals and fossils were donated to the municipality, which set aside a room in the Realschule for them.