Karl Beurlen (17 April 1901 – 27 December 1985) was a German paleontologist.
Beurlen was born in Aalen. He attended University of Tubingen. He completed a PhD in 1923.
Beurlen was a proponent of orthogenesis and saltational evolution. He used the term metakinesis (coined by Otto Jaekel) to describe sudden changes of development in organisms. He also invented the term palingenesis as a mechanism for his orthogenetic theory of evolution.
He was an assistant of Edwin Hennig.
He was a proponent of National Socialist ideology and wrote about the Aryan race.