Friedrich Gustav Piffl (15 October 1864 – 21 April 1932) was a Cardinal of the Roman Catholic Church and Archbishop of Vienna.

Gustav Piffl was born in Lanškroun, Bohemia, in what was then the Austrian Empire.

After deciding to become a priest he enrolled in the Teutonic College of Santa Maria in Camposanto in Rome and later became an Augustinian canon at the Abbey of Klosterneuburg, Austria, in 1883.

[1] Piffl visited the United States in 1926, giving the opening address (in German) at Chicago's Eucharistic Congress.

[2] He was not born an aristocrat (his father was a book-binder), but received the title of prince-archbishop of Vienna, holding office at the dissolution of Austria-Hungary in 1918.