Lecco (US: LEK-oh, LAY-koh, Italian: [ˈlekko], locally [ˈlɛkko] ; Lecchese: Lecch [ˈlɛk]) is a city of approximately 47,000 inhabitants in Lombardy, Northern Italy, 50 kilometres (31 mi) north of Milan. It lies at the end of the south-eastern branch of Lake Como (the branch is named Branch of Lecco / Ramo di Lecco). The Bergamo Alps rise to the north and east, cut through by the Valsassina of which Lecco marks the southern end.

The lake, narrows to form the River Adda, so bridges were built to improve road communications with Como and Milan. There are four bridges crossing the river Adda in Lecco: the Azzone Visconti Bridge (1336–1338), the Kennedy Bridge (1956), the Alessandro Manzoni Bridge (1985), and a railroad bridge.

Lecco was also Alpine Town of the Year in 2013.