The Humberg Tower is an observation tower on the Humberg hill, 425 metres high, to the south of the city of Kaiserslautern in southwest Germany.
The idea of building a tower on the Humberg was taken up in 1896. For this purpose, inhabitants of the city founded the Humberg Association, with the aim of financing the building of an observation tower. Among the founding members were the well-known sewing machine factory owner Pfaff, the mayor, Dr. Orth, distinguished businessmen, Pfeiffer and Karcher, and malt manufacturer, Gelbert.
The tower was built to plans by the Munich architect, Ludwig Ritter von Stempel, who had already made a name for himself with some public buildings in the city.