Barzana is a municipality in the Province of Bergamo in the Italian region Lombardy with 1846 inhabitants ( 31 December 2012).
Barzana is located about 9 km northwest of the provincial capital of Bergamo in Val Imagna and is a member of the Comunità Montana Valle imagnes.
Until 1797 Barzana belonged to Ponte San Pietro. 1810 was combined with Palazzago. 1809 were counted 267 inhabitants. In the Lombardo- Venetian kingdom again independently, the census in the establishment of the Kingdom of Italy 414 inhabitants. By 1921, a continuous population growth is recorded at 643. With slight variations, the prior to 1951 (624) was almost claiming since then is a sustained increase recorded.