Varenna is a comune (municipality) on Lake Como in the Province of Lecco in the Italian region Lombardy, located about 60 km north of Milan and about 20 km northwest of Lecco. As of 31 December 2004, it had a population of 882 and an area of 11.2 kmĀ².
The municipality of Varenna contains the frazione (subdivision) Fiumelatte, home to Italy's shortest river.
Varenna borders the following municipalities: Esino Lario, Lierna, Oliveto Lario, Perledo; and, across the lake in the province of Como: Bellagio, Griante, Menaggio