Karl Humenberger (25 October 1906 – 28 December 1989) was an Austrian association football player and manager, the brother of fellow player Ferdinand Humenberger.

Born in Vienna,[3] Humenberger played in Austria for Floridsdorfer AC and Admira Vienna, in Switzerland for FC Zürich, and in France for Strasbourg and Saint-Étienne.

[1][4] Humenberger earned one cap for the Austrian national side in 1928.

Humenberger managed in a number of European countries, including Austria (with SC Ortmann and Austria Salzburg), the Netherlands (with Ajax[5]) and in Belgium (with Royal Antwerp).

Karl was born in Vienna, the son of Auguste Stroh and Ferdinand Humenberger.