Boca (Piedmontese: Bòca, Lombard: Boca) is a comune (municipality) in the Province of Novara in the Italian region Piedmont, located about 90 kilometres (56 mi) northeast of Turin and about 30 kilometres (19 mi) northwest of Novara.

Boca borders the following municipalities: Cavallirio, Cureggio, Grignasco, Maggiora, Prato Sesia, and Valduggia.

There are some other churches in the village: Next to the Sanctuary there is the Natural Park of Mount Fenera The commune of Boca is home to the Denominazione di origine controllata (DOC) wine which includes 15 hectares (37 acres) producing a single red wine.

The wine is a blend of 45-70% Nebbiolo, 20-40% Vespolina and up to 20% of Uva Rara (known locally as Bonarda Novarese).

The finished wine must attain a minimum alcohol level of 12% in order to be labelled with the Boca DOC designation.