Karl Heinz Füssl (21 March 1924 – 4 September 1992) was an Austrian composer and musicologist.
Born in Gablonz, (Czechoslovakia), Füssl went to study in Berlin and began his training with Konrad Friedrich Noetel (composition), Gerd Otto (piano) and Hugo Distler (choral conducting).
After the Second World War, he settled in Vienna and began his studies with Alfred Uhl (composition), Erwin Ratz (musical analysis), and Hans Swarowsky (conducting).
[1] Füssl was also active as a music critic and worked as an editor for Universal Edition.
On the one hand, he was entrusted with the Urtext editions, and on the other, he was involved in the publication of the works of Haydn, Mozart and Johann Strauss II.