Gamla Riksarkivet, National archives building in Stockholm, Sweden.

Gamla Riksarkivet is an archive building in Stockholm that displays a solid granite and brick exterior designed to convey permanence. The structure features large windows positioned to channel natural light deep into its interior spaces, where vast collections of documents are stored and managed.

The building was erected in 1887–1890 by master builder Axel Gotthard Janson to designs by architect Axel Fredrik Nyström, after Riksarkivet became an independent agency in 1878. It was joined to the older archive rooms in Stenbockska palatset, where the archive had begun in 1863. Riksarkivet left in 1968 for its new main building on Kungsholmen, and the last operations moved out in 1995.

The building's name, Gamla riksarkivet (Old National Archives), marks it as the former home of the Swedish National Archives, which moved out in 1968. Since 2014 Stureplansgruppen has run events and conferences in the roughly 5,000 square metres. The author Anders Fager set a cache of occult books hidden beneath the archive in his horror trilogy "Fallet Cornelia Karlsson".

The building stands at Arkivgatan 3 on Riddarholmen, next to the Stenbock Palace and linked to it; a fire lane, Tryckerigatan, separates it from the Norstedt publishing house to the north. Since spring 2014 Stureplansgruppen has run events and conferences in the roughly 5,000 square metres, so the interior is generally seen during booked functions rather than open visiting.

A spiral chute, or book drop, runs through every floor of the building; it was installed during the Second World War so that archive documents could be moved out of Stockholm quickly in an emergency. The iron doors are made of boiler plate, and only the wooden shelf boards are combustible.