Karl Bosl (11 November 1908 – 18 January 1993) was a German regional historian. He held the chair for Bavarian regional history at the Ludwig Maximilian University of Munich from 1960 until his retirement in 1977. Bosl was elected a full member of the Bavarian Academy of Sciences in 1961, a corresponding member of the Medieval Academy of America in 1970 and of the British Academy the same year. In 1973 he was elected a corresponding member of the Austrian Academy of Sciences .