Romylos of Ravanica was a 14th-century Bulgarian monk and a prominent practitioner of the Hesychast tradition. Born in Vidin around 1330 to a family of Bulgarian and Greek descent, he later became a dedicated disciple of Gregory of Sinai. Throughout his life, he moved between various monastic centers, including Paroria and Mount Athos, eventually settling in the Serbian Despotate. He is recognized as a significant figure in both Bulgarian and Serbian literature and served as a mentor to Grigorije of Gornjak.