Berzo Demo (Camunian: Bèrs Dém) is an Italian comune in Val Camonica, province of Brescia , in Lombardy, northern Italy.

The town of Berzo Demo is nestled on the southern slopes of the Pian della Regina. It is formed by three villages: the more downstream is Demo, the central one is Berzo and on top is Monte. It is bounded by other communes of Cedegolo , Cevo , Malonno, Paisco Loveno, Sellero, Sonico.

Monday 6 April 1299, the consuls of the vicinia of Berzo and Demo go to Cemmo where is Cazoino Capriolo , Chamberlain of the Bishop of Brescia Berardo Maggi. Here swear according to the usual formula loyalty to the bishop, and pay the tithe due.