Viganò is a comune (municipality) in the Province of Lecco in the Italian region Lombardy, located about 30 kilometres (19 mi) northeast of Milan and about 15 kilometres (9 mi) southwest of Lecco. As of 31 December 2004, it had a population of 1,804 and an area of 1.6 square kilometres (0.62 sq mi).

Viganò borders the following municipalities: Barzanò, Missaglia, Monticello Brianza, Sirtori.