Radulf de Lamley [Ralph, Ranulf, Randalph de Lambley] was a 13th-century monk and cleric. Radulf's youth is obscure, and it is not until the 1220s that he emerges in the sources as a Tironensian monk, now Abbot of Arbroath. He held the leadership of Arbroath Abbey until 1239, when he was chosen to succeed Gilbert de Stirling as Bishop of Aberdeen.