Andronikos Kallistos (1400 – c. 1476) was a teacher of Greek literature in Bologna, Rome, Florence, Paris and London. He was one of the most able Greek scholars of the 15th century and cousin of the distinguished scholar Theodorus Gaza. He was born in Thessaloniki in 1400. He lived and studied in Constantinople. After the fall of Constantinople in 1453, Kallistos went to Italy where he joined Basilios Bessarion. He taught in Bologna (1464), Rome (1469), Florence, Paris and London (1476). He began the systematic teaching of Greek literature in France. He communicated the principles of Aristotelian thought to many of his students, whose learning won them distinction in Europe. He possessed a large collection of Greek manuscripts. He traveled extensively in northern Europe and died about 1476 in London, England. Among his works is a defence of Theodore of Gaza's positions against the criticisms of Michael Apostolius (Andronicus Callistus Defensio Theodori Gazae adversus Michaelem Apostolium).