Romylos of Vidin also known as Romylos of Ravanica or Romylus the Athonite (Romil Svetogorac, Romil Svetogorski); (Bulgarian: Ромил Бдински; Serbian: Ромил Раванички) was a 14th-century Bulgarian cleric, a disciple of Gregory of Sinai. He is also known as the teacher of Grigorije of Gornjak. He is regarded as part of both Bulgarian and Serbian literature.