Ernst Fischer
Ernst Fischer may refer to:
- Ernst Fischer (composer), German composer and keyboard player
- Ernst Fischer (journalist), German journalist
- Ernst Fischer (weightlifter), Swiss Olympic weightlifter
- Ernst Fischer (writer), Austrian journalist, writer and politician
- Ernst Gottfried Fischer, German chemist developer of stoichiometry theory together with Jeremias Richter
- Kuno Fischer, German philosopher
- Ernst Otto Fischer, German chemist, Nobel Prize winner
- Ernst Peter Fischer, German historian of science, and science publicist
- Ernst Sigismund Fischer, Austrian mathematician