Radulf of Brechin (also spelled Ralph; died c. 1214) was a medieval Scottish cleric who served as the Bishop of Brechin. His episcopacy is generally dated from approximately 1202 until his death, which occurred around 1214.
Radulf succeeded Bishop Turpin of Brechin, whose last known appearance in historical records was in 1198. Radulf is first attested as Bishop-elect of Brechin in a charter dated to 1202, signifying his selection for the episcopal see. He was consecrated as bishop sometime between 1202 and 1207.
During his tenure, Radulf was an active participant in the ecclesiastical and civil affairs of the Kingdom of Scotland. He is recorded as witnessing numerous charters, which was a common duty for bishops of his time. These documents provide valuable insights into land grants, confirmations of rights, and other legal and administrative functions of medieval Scottish society. For instance, he is known to have attested charters issued by King William the Lion.
Radulf's period as bishop coincided with a formative era for the Scottish church, as it continued to develop its organizational structures and assert its authority within the kingdom, navigating its relationships with both the Scottish monarchy and the wider Roman Catholic Church.
He was succeeded as Bishop of Brechin by Adam.