Gamla Riksarkivet (Old National Archives) is a building at Arkivgatan 3 on Riddarholmen in Stockholm, Sweden.

Riksarkivet, the Swedish National Archives, were located in the building until 1968.

The 19th century Brick Romanesque architecture of the building is alluding to the medieval history of Riddarholmen.

The plan of the building is, however, typical for public buildings of its era, the grand style central portion clearly articulated in the façade together with the huge windows of the reading-room.

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