Archduke Friedrich, Duke of Teschen
| Archduke Friedrich | |
|---|---|
| Royal prince of Hungary and Bohemia | |
| Supreme Commander of the Imperial and Royal Armed Forces | |
| In office | 11 July 1914 – 2 December 1916 |
| Predecessor | Franz Joseph I |
| Successor | Charles I |
| Duke of Teschen | |
| Reign | 18 February 1895 – 3 April 1919 |
| Predecessor | Archduke Albrecht |
| Born | 4 June 1856 Gross Seelowitz, Margraviate of Moravia, Austrian Empire |
| Died | 30 December 1936 (aged 80) Magyaróvár, Kingdom of Hungary |
| Burial | |
| Spouse | |
| Issue |
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| House | Habsburg-Lorraine |
| Father | Archduke Karl Ferdinand of Austria |
| Mother | Archduchess Elisabeth Franziska of Austria |
Archduke Friedrich, Duke of Teschen (Friedrich Maria Albrecht Wilhelm Karl; 4 June 1856 – 30 December 1936) was a member of the House of Habsburg-Lorraine and the Supreme Commander of the Imperial and Royal Armed Forces of the Austro-Hungarian Empire during World War I, having previously served as both commander-in-chief of the Imperial-Royal Landwehr and inspector-general of the Austro-Hungarian Army.