Otto Ferdinand Georg Kern was a German classical philologist, archaeologist and epigraphist. He specialized in the field of ancient Greek religion, being known for his investigations of Greek mystery cults and Orphism, as well as the ancient city of Magnesia on the Maeander and later also the history of ancient studies. In 1907 he became professor at the University of Halle-Wittenberg, where he became rector in 1915/16.

Orphism is the name given to a set of religious beliefs and practices originating in Thrace and later spreading to the ancient Greek and Hellenistic world, associated with literature ascribed to the mythical Thracian poet Orpheus, who descended into the Greek underworld and returned. This type of journey is called a katabasis and is the basis of several hero worships and journeys. Orphics revered Dionysus and Persephone. Orphism has been described as a reform of the earlier Dionysian religion, involving a re-interpretation or re-reading of the myth of Dionysus and a re-ordering of Hesiod's Theogony, based in part on pre-Socratic philosophy.