Dervio (Comasco: Derf [ˈdɛrf]) is a comune (municipality) in the Province of Lecco in the Italian region Lombardy, located on the eastern shore of Lake Como, about 70 kilometres (43 mi) north of Milan and about 25 kilometres (16 mi) northwest of Lecco. It is located on a peninsula with same name on the Lake Como, at the mouth of the Varrone river Valley.