Bermudo I (also Vermudo or Veremund), called the Deacon or the Monk (c. 750 – 797), was the King of Asturias from 788 or 789 until his abdication in 791. He was a son of Fruela of Cantabria, a nephew of Alfonso I, and a brother of Aurelius. The nature of the end of his reign ushered in a new period in Asturian-Arab relations.