Serravalle Langhe 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 340 and an area of .
The municipality of Serravalle Langhe contains the frazione (subdivision) Villa.
Serravalle Langhe borders the following municipalities: Bossolasco, Cerreto Langhe, Cissone, Feisoglio, and Roddino.