Brønnum House (Danish: Brønnums Hus) is a richly decorated 1860s apartment building situated adjacent to the Toyal Danish Theatre's Stærekassen extension and the Harsdorff House on Kongens Nytorv in central Copenhagen, Denmark.

Café Brønnum, frequented by actors from the adjacent theatre, was based in the building for more than 100 years.

The homes of the wealthy Jewish businessman Martin Henriques and Bernhard Hirschsrpung on the first and second floor were both frequented by some of the leading cultural figures of their time.

Brønnum House was the first residential building to be completed when the former naval dockyards at Gammelholm came under redevelopment in the 1860s.

The couple were close friends of the writer Hans Christian Andersen to whom they had been introduced by ballet master August Bournonville.

Other prominent cultural figures visited their home, including August Bournonville and the composers Niels W. Gade, J. P. E. Hartmann and Edvard Grieg.

[2] The Supreme Court attorney Nathan Heine and his wife Mathilde (née Trier) lived on the third floor from 1882 to 1914.

[3] The apartment on the second floor features murals with scenes from Hirschsprung's country house painted by Thorvald Niss (1842-1905) and Gotfred Rump (1816–80).

[2] The painter Edvard Lehmann created a painting of a music soirée in the Hneriques family's home.

The people seen in the picture include the composer Niels W. Gade and the ballet dancer Juliette Price.