The Swedish Army Museum () is a museum of military history located in the district of Östermalm in Stockholm. It reopened in 2002 after a long period of closure, and was awarded the title of the best museum of Stockholm in 2005. Its displays illustrate the military history of Sweden, including its modern policy of neutrality, and of the Swedish Army. The building was erected in the 17th century as an arsenal for the production and storage of artillery weapons.