Santo Stefano Roero 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 1,314 and an area of .
Santo Stefano Roero borders the following municipalities: Canale, MontÃÂ, Monteu Roero, and Pralormo.