Massazza is a comune (municipality) in the Province of Biella in the Italian region Piedmont, located about 60 kilometres (37 mi) northeast of Turin and about 4 kilometres (2 mi) southeast of Biella.
Massazza borders the following municipalities: Benna, Cossato, Mottalciata, Salussola, Verrone, Villanova Biellese. It is home to a castle, built on a spur above the Biellese Baraggia natural area. The edifice was mentioned for the first time in 1239.
- ^ All demographics and other statistics: Italian statistical institute Istat.