Arduin Glaber (Italian: Arduino Glabrio, Glabrione, or il Glabro, meaning "the Bald"; died c. 977) was count of Auriate from c. 935, count of Turin from c. 941/2, and Margrave of Turin from c. 950/64. He placed his dynasty, the Arduinici, on a firm foundation and established the march of Turin through conquests and royal concessions. The Chronicon Novaliciense, the chronicle of the abbey of Novalesa, is the primary source for his life.
Arduin was the eldest son of Roger, Count of Auriate (r. c. 906 – c. 935), a Frankish nobleman who immigrated to Italy in the early tenth century. The medieval county of Auriate comprised the region bounded by the Alps, the Po River, and the Stura, today the regions of the Saluzzese and Cuneese. Arduin succeeded his father as count of Auriate sometime around 935, but he is not documented as Count Arduin (Ardoino comes) until 13 April 945, when he sat in judgement at a conference (placitum) of Count Lanfranc at Pavia in the presence of King Lothair II.
Around 940 Arduin campaigned in the Susa Valley against the Saracens who were occupying Alpine passes. He gained control of the valley, and brought Novalesa back under Christian control. Sometime between 941 and 950, Arduin was made count of Turin. Since King Hugh exiled Berengar of Ivrea and abolished the March of Ivrea, which included Turin, in 941, it is probable that Hugh bestowed the county on Arduin at this time. Turin was the principal residence for Arduin and his dynasty from this point on.