Theodorus Gaza (c. 1400–1475) was a Greek-born Italian humanist, translator, and scholar. Born in Thessaloniki, he fled to Italy after the Ottoman conquest and became a key figure in the transmission of Greek classical texts to the Latin West. Gaza is renowned for his Latin translations of Aristotle and Theophrastus, which were widely used in European universities. He served as a papal secretary and participated in the Florentine Platonic Academy, collaborating with Bessarion and Marsilio Ficino. His work preserved and disseminated Greek philosophical and scientific heritage, significantly influencing Renaissance humanism and the Scientific Revolution.