Callabiana is a comune (municipality) in the Province of Biella in the Italian region Piedmont, located about 70 kilometres (43 mi) northeast of Turin and about 4 kilometres (2 mi) northwest of Biella. As of 31 December 2004, it had a population of 139 and an area of 7.3 square kilometres (2.8 sq mi).

Callabiana borders the following municipalities: Andorno Micca, Bioglio, Camandona, Gaby, Pettinengo, Piatto, Piedicavallo, Tavigliano, Vallanzengo.

Callabiana is on the slopes of Monte Casto. The whole territory is divided into 15 hamlets: Trabbia, Lucca, Virla, Socco, Steglio, Cordaro, Nelva, Corte, Fusero, Chiesa, Pianezze, Cascina Nuova, Vacchione, Pettani and Ribatto. The most important one is Pianezze, which has an important textile factory, called Carlo Barbera, where luxury clothes sold all over the world are made.