Athanasius the Meteorite was a 14th-century Christian monk from the Byzantine Empire who is recognized as a saint in both Catholic and Orthodox traditions. Born in Phthiotis, he eventually sought a life of extreme asceticism, traveling from Mount Athos to Crete before settling in the Meteora region of Thessaly. He is most famous for establishing the monastic community at the highest peak of Meteora, which became the Great Meteoron monastery. His spiritual life was characterized by intense prayer, fasting, and the practice of hesychasm.