Johann Caspar Horner (1734-1834) was a Swiss physicist and astronomer.

Less well known is the fact that the circuit was discovered much earlier, in 1919, by Heinrich Greinacher, a Swiss physicist.

Gregory Hugh Wannier (1911 - 1983) was a Swiss physicist.

Ingo Sick (born 1939) is a Swiss experimental nuclear physicist.

Paul Scherrer (1890-1969) was a Swiss physicist.

Heinrich Rohrer (6 June 1933 - 16 May 2013) was a Swiss physicist.

March 24 - Auguste Piccard (born 1884), Swiss physicist and explorer.

Paul Scherrer (3 February 1890 - 25 September 1969) was a Swiss physicist.

An exception was Pierre Lehman, a Swiss atmospheric physicist who noted the important link between soil and climate.

Auguste Piccard (died 1962), Swiss physicist and explorer.