Carbonate is a comune (municipality) in the Province of Como, in the Italian region of Lombardy. It is situated in northern Italy, roughly 30 kilometres (19 mi) northwest of Milan and about 20 kilometres (12 mi) southwest of Como.
The municipality covers an area of 5.2 square kilometres (2.0 sq mi). As of 31 December 2004, its population was recorded at 2,757.