Johann Schweigger (8.04.1779-6.09.1857) was a German physicist. He was born in Erlangen. In 1800 he received the degree of Doctor of Philosophy at the University of Erlangen, where he worked. From 1803 he was professor at the gymnasium in Bayreuth, and in 1811 —16 at the Polytechnic School in Nuremberg. From 1819 he was professor at the University of Halle.
His work was concerned with the study of electrical phenomena and the construction of electrical instruments. He invented the electrometer (1808), the spring galvanometer and the electromagnetic multiplier (1820), named after him (the Schweigger multiplier).