The Dehn Mansion is one of two identical but mirror-imag Rococo-style town mansions on Bredgade, flanking the entrance to Amalienborg via Frederiksgade, in the Frederiksstaden district of Copenhagen, Denmark. It takes its name after Friedrich Ludwig von Dehn, its first owner. The mansion was later divided into two separate properties. The larger, northn part of the mansion is now owned by the Danish Association of Pharmaconomists. The southern part is owned by Karberghus. The building was listed in the Danish registry of protected buildings and places in 1918.

Karberghus is a Danish real estate company based in Copenhagen, Denmark. It specializes in the acquisition, restoration and renting out of historic properties in the Copenhagen area and is a member of BYFO, Historiske Huse and Europa Nostra. Karberghus is the owner of the company Office Club offering coworking in historic buildings in Copenhagen.