Aceh Museum or Aceh State Museum, popularly known as Banda Aceh Museum is a museum in Banda Aceh, Indonesia. It is one of the oldest museum in Indonesia. The original building of the Aceh Museum was in the form of a traditional Acehnese stage house (Acehnese Rumoh Aceh). This building was originally used as the Aceh Pavilion in the ground of De Koloniale Tentoonsteling (The Colonial Exhibition) in Semarang from August 13 to November 15, 1914. The original intention was that the stage house would be dismantled and moved to the Netherlands.
The pavilion showcased Acehnese artefacts, most of them are private collection of the ethnographer Friedrich Stammeshaus, which in 1915 became the first curator of the Museum of Aceh. During this exhibition, Aceh Pavilion managed to become the best pavilion. Because of this success, Stammeshaus proposed the Civic and Military Governor of Aceh, HNA. Swart, to brought the pavilion back to Aceh and used it as a museum. The building was returned to Koetaradja (now Banda Aceh) in Aceh, and since August 31, 1915, it was officially opened on the Esplanade of Koetaradja with Stammeshaus as the first curator of the museum. Stammeshaus remained a curator of the museum until 1933.
Some of the original collection of the Aceh Museum has been maintained by the Tropenmuseum in Amsterdam, some of the most famous of this is the personal coat of Teuku Umar. Today the museum collects Acehnese related archaeological items, flora and fauna from Aceh, ethnographic items, old manuscripts, stones and minerals from the region, Acehnese ceramic, coins and seal from the kingdom of Aceh, and historic paintings.