Marmora is a comune (municipality) in the Province of Cuneo in the Italian region Piedmont, located about southwest of Turin and about west of Cuneo. As of 31 December 2004, it had a population of 97 and an area of .
The municipality of Marmora contains the frazioni (subdivisions, mainly villages and hamlets) Tolosano, Torello, Garino, Urzio, Arvaglia, Arata, Reinero, Finello, S. Sebastiano, and Vernetti.
Marmora borders the following municipalities: Canosio, Castelmagno, Celle di Macra, Demonte, Macra, Prazzo, Sambuco, and Stroppo.