Selve Marcone is a comune (municipality) in the Province of Biella in the Italian region Piedmont, located about 70 km northeast of Turin and about 4 km northwest of Biella. As of 31 December 2004, it had a population of 100 and an area of 2.2 km². Selve Marcone borders the following municipalities: Andorno Micca, Callabiana, Pettinengo, Piedicavallo, Rassa, Tavigliano.