Radulf or Radulph may refer to: Radulf, King of Thuringia, 7th-century noble, Duke and then King Radulf II, Duke of Thuringia, 9th century Radulf of Narbonne, 8th-century Count Radulf of Besalú (died 920), Count Radulf (d. 1220), Radulf II, abbot of Kinloss Radulf of Brechin, 13th-century bishop of Brechin Radulf the Cistercian, 12th-century French monk who called for the killing of Jews See also Ralph (disambiguation) Rudolph (disambiguation) List of rulers of Thuringia