| Archduke Franz Karl Salvator | |
|---|---|
 Archduke Franz Karl Salvator Austria in uniform | |
| Born | 17 February 1893 Schloss Lichtenegg, Wels, Austria-Hungary |
| Died | 10 December 1918 (aged 25) Wallsee-Sindelburg, Austria |
| House | Habsburg-Lorraine |
| Father | Archduke Franz Salvator of Austria |
| Mother | Archduchess Marie Valerie of Austria |
Archduke Franz Karl Salvator of Austria (German: Erzherzog Franz Karl Salvator Marie Joseph Ignaz von Österreich-Toskana) (17 February 1893 in Schloss Lichtenegg, Wels, Upper Austria, Austria-Hungary – 10 December 1918, Wallsee-Sindelburg, Lower Austria, Austria) was a member of the Tuscan line of the House of Habsburg-Lorraine and Archduke of Austria, Prince of Tuscany by birth. He died of the Spanish flu.