Campiglia Cervo is a comune (municipality) in the Province of Biella in the Italian region Piedmont, located about northeast of Turin and about northwest of Biella. As of 31 December 2004, it had a population of 176 and an area of .
Campiglia Cervo borders the following municipalities: Andorno Micca, Mosso, Piedicavallo, Quittengo, Rosazza, Valle Mosso. From 1 January 2016 Campiglia Cervo also encompasses two former neighbouring municipalities, Quittengo and San Paolo Cervo.
In the municipality there is a famous sanctuary, the Sacro Monte di Andorno.