Bruunshaab Gamle Papfabrik (Bruunshaab Old Cardboard Factory) is a former textile and cardboard factory located in the town Bruunshåb, a few kilometers south of Viborg, Denmark.

It was built as a textile factory by manufacturer Bertel Bruun in 1821.

The latter established the cloth mill Ny Bruunshaab at Aarhus.

[1] After a large fire in the early 1900s, a new main building was built in 1909, designed by architect Søren Vig-Nielsen [da].

In 1919, the factory was adapted for cardboard production.