David Anhaght

David the Invincible depicted in medieval manuscript of Definition of Philosophy (Matenadaran, Ms. 1746, c. 1280)

David the Invincible or David the Philosopher was a Neoplatonic philosopher of the 6th century.

Biography David was a pupil of Olympiodorus in Alexandria. His works, originally written in Greek, survive in medieval Armenian translation, and he was given the byname of "invincible" in the Armenian tradition, which considers David himself an Armenian. Historian Tara Andrews states that his ethnicity is uncertain.

Due to confusion with other authors called David and due to an abundant body of medieval legend, almost nothing is known with certainty about the historical David. Armenian tradition makes him a native of Taron, but this is not substantiated in contemporary sources and may be due to conflation with another person. He was active in Alexandria in Byzantine Egypt, known as an expert in Aristotle's Physics. He supposedly received the byname "invincible" for his exceptional oratory and argumentative skills.

The David Anhaght Medal, the highest-ranking medal granted by the Armenian Academy of Philosophy, is named after him. In 1978, a film about David the Invincible by Armenian director Levon Mkrtchyan was released by Armenfilm.