Piantedo () is a (municipality) in the Province of Sondrio in the Italian region of Lombardy, located about north of Milan and about west of Sondrio. As of 31 December 2004, it had a population of 1,258 and an area of .

Piantedo borders the following municipalities: Colico, Delebio, Dubino, Gera Lario, Pagnona.

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