John I Debranin (Bulgarian: Йоан Дебърски) was an 11th-century Bulgarian clergyman.[1] He became the first Archbishop of Ochrid after the fall of the First Bulgarian Empire to Byzantium.[2] According to 17th-century French historian du Cange John Debranin was born in a village around the town of Debar in present-day Republic of Macedonia.[3] When in 1018 Emperor Basil II managed to conquer Bulgaria, he decided to abolish the previously autocephalic Bulgarian Orthodox Church, establishing the Archbishopric of Ochrid (A resurrection of the Archbishopric of Justiniana Prima). John Debranin was chosen to be the first Archbishop of Ochrid. Prior to this he had been an Hegumen in a Debar monastery.[3] He remained head of the Archbishopric until his death in 1037.