Cernobbio is a comune in the province of Como, Lombardy, northern Italy. It is located about 40 kilometres north of Milan and about 2 kilometres northwest of Como, on the border with Switzerland and near the Lake Como. The highest peak is the Monte Bisbino, at 1,325 metres.
Cernobbio borders the following municipalities: Blevio, Breggia, Como, Maslianico, Moltrasio, Vacallo.
Cernobbio received the honorary title of city with a presidential decree on May 24, 2005.