Arnold II (or Arnulf, Arnoul) (died 1146), Count of Looz, son of Arnold I, Count of Looz, and Agnes von Mainz, daughter of Gerhard I, Count of Rieneck, and Helwig von Bliescastel. He is distinguished from his father of the same name by historians who note records for counts named Arnold or Arnulf between 1179 and 1141. The first Arnold must have died between 1125 when Count Arnold appears in a record with his son also named Arnold, and 1135, when a new Count Arnold appears with his own son and successor Louis. Arnold was succeeded as Count of Looz by his son Louis.