Karl Fischer

Karl Fischer may refer to:

* Karl Fischer (chemist) (1901–1958), German originator of Karl Fischer titration
 * (1918–1963), Austrian politician
 * (1888–?), Austrian football coach: Pogoń Lwów, Legia Warsaw
 * Karl Fischer (leftist) (fl. 1940s), German militant in Left Communism
 * Karl Fischer (architect) (born 1948), Canadian architect
 * Karl Fischer (footballer), Estonian footballer
 * Karl von Fischer (1782–1820), German architect
 * Karl Fischer (actor), German actor known for co-starring in the Donna Leon TV series
 * Karl Fischer von Treuenfeld (1885–1946), Generalleutnant of Waffen SS
 * Karl Fischer (photographer), German-born Russian photographer