The Regional State Archives in Hamar () is a regional state archives situated in Hamar, Norway. Part of the National Archival Services of Norway and is responsible for preserving records from state institutions in the former counties of Oppland and Hedmark. The collection compromises approximately nine shelf-kilometers of archival material.
The agency was established on 13 July 1917, taking over archival responsibilities for the two counties from the Regional State Archives in Oslo. It was initially located at Parkgt. 2, relocating to Strandgt. 71 in 1958. In 1991, it moved to its current premises at Lille Strandgt. 3.