Ernst Fischer

Ernst Fischer may refer to:


 * Ernst Fischer (composer) (1900–1975), German composer and keyboard player
 * Ernst Fischer (journalist) (1942–2016), German journalist
 * Ernst Fischer (weightlifter) (born 1904), Swiss Olympic weightlifter
 * Ernst Fischer (writer) (1899–1972), Austrian journalist, writer and politician
 * Ernst Gottfried Fischer (1754–1831), German chemist developer of stoichiometry theory together with Jeremias Richter
 * Kuno Fischer (Ernst Kuno Berthold Fischer, 1824–1907), German philosopher
 * Ernst Otto Fischer (1918–2007), German chemist, Nobel Prize winner
 * Ernst Peter Fischer (born 1947), German historian of science, and science publicist
 * Ernst Sigismund Fischer (1875–1954), Austrian mathematician