Karl Haas (1913 - February 6, 2005) was a classical music radio show host. He was the host of Adventures in Good Music, which was syndicated to commercial and public radio stations in the United States, and in other places around the world. He also published a book, Inside Music.

Haas was born in Speyer and studied at the Mannheim Conservatory and the University of Heidelberg. He left Germany in 1936 because of the rise of Nazism. He first settled in Detroit, Michigan, but lived in other places before returning to Detroit near the end of his life. He studied piano with Artur Schnabel.

Haas started Adventures in Good Music at WJR-AM in Detroit, Michigan in 1959 and later syndicated in 1970 at WCLV (http://www.wclv.com/skin/feature.php?sectionId=180), a Cleveland, Ohio radio station. The story goes that the station people wanted him to call it something like "Adventures in Classical Music", which he rejected as being too narrow, or "Adventures in Music", which he rejected as being too broad. He chose the title as being in line with his philosophy that there are really only two kinds of music: good and bad. The theme music for his show was the slow movement from Beethoven's "Pathétique" Sonata (Sonata No 8 in C minor).

For the last two years of his life, he did not produce any new shows, but re-played his previous work.