Franz Schalk (27 May 1863 – 3 September 1931) was an Austrian conductor. From 1918 to 1929 he was director of the Vienna State Opera, a post he held jointly with Richard Strauss from 1919 to 1924. Later, Schalk was involved in the establishment of the Salzburg Festival.
His most famous quote is "Every theatre is an insane asylum, but an opera theatre is the ward for the incurables."
Today Schalk is most famous for his work popularizing and revising the symphonies of his teacher Bruckner. He gave the premiere of Bruckner's Symphony No. 5 in 1894, but in a version much affected by cuts and changes, most of which are thought to have been made without Bruckner's approval. The ailing composer was too sick to attend the premiere. Schalk's version of the Fifth Symphony was the one chosen for first publication and was the only version heard by audiences for almost forty years.
While many critics have attacked Schalk for his alterations to the original versions of Bruckner's works, others have pointed out that without his popularizing work Bruckner's music might have remained unknown. The conductor Leon Botstein is a prominent advocate of Schalk's versions of Bruckner's music.
Schalk was also involved in the early publication of Mahler's Symphony No. 10.
Some of Schalk's work as a conductor has been preserved and is available on CD.
Schalk gave the premiere of Richard Strauss's opera Die Frau ohne Schatten in 1919.