The Mathematisch-Physikalischer Salon (, Royal Cabinet of Mathematical and Physical Instruments) in Dresden, Germany, is a museum of historic clocks and scientific instruments. Its holdings include terrestrial and celestial globes, astronomical, optical and geodetic devices dating back to the 16th century, as well as historic instruments for calculating and drawing length, mass, temperature and air pressure. The Mathematisch-Physikalischer Salon is part of the Staatliche Kunstsammlungen Dresden (State Art Collections). It is located in the Zwinger.

Today's presentation

After a general reconstruction of the Zwinger, the museum has been reopened April 14, 2013. The new exhibition presents about 500 historical scientific instruments. They are shown in four chapters.