Traona is a comune (municipality) in the Province of Sondrio in the Italian region Lombardy, located about 80 kilometres (50 mi) northeast of Milan and about 25 kilometres (16 mi) west of Sondrio. As of 31 December 2004, it had a population of 2,314 and an area of 6.2 square kilometres (2.4 sq mi).

Traona borders the following municipalities: Cercino, Civo, Cosio Valtellino, Mello, Morbegno, Novate Mezzola.