Tassilo Graf Festetics de Tolna was a Royal Hungarian court official and an Austrian General der Kavallerie, who commanded the Austrian IV Army Corps during the Austro-Prussian War.
- Occupation
- military officer, politician
- Position held
- Member of the House of Magnates, Member of the House of Magnates, Member of the House of Magnates
- Citizenship
- Hungary, Cisleithania
- Born
- June 2, 1813
- Died
- February 5, 1883