Niella Belbo is a comune (municipality) in the Province of Cuneo in the Italian region Piedmont, located about southeast of Turin and about northeast of Cuneo. As of 31 December 2004, it had a population of 424 and an area of .
Niella Belbo borders the following municipalities: Bossolasco, Feisoglio, Gorzegno, Mombarcaro, and San Benedetto Belbo.