Karl Eduard Zetzsche (March 11, 1830, in Altenberg – April 18, 1894, in Dresden) was a German mathematician and physicist.
He studied in Dresden and Vienna, and in 1856 entered the Austrian telegraph service.
In 1858, he became a teacher in the industrial high school at Chemnitz and, in 1876, a professor of telegraphy in the Polytechnic Institute at Dresden.
In 1880, he was appointed telegraph engineer in the Imperial Post Office at Berlin.
This article incorporates text from a publication now in the public domain: Gilman, D. C.; Peck, H. T.; Colby, F. M., eds.