The Uphagen House (Polish: Dom Uphagena, German: Uphagen-Haus) is a reconstructed 18th-century merchant house in Gdańsk, Poland, located at the Ulica Długa (Long Lane) within the Royal Route in the historic Main City.

[1] In 1911 the Uphagen house was converted into a museum, which it remained until 1944.

[1] In that year, German curators of the house evacuated the furniture to Kartuzy and Gorzędziej.

[3] The Uphagen House was destroyed during the Soviet advance into Danzig in 1945.

The house was rebuilt after World War II.