Paderno Dugnano is a town and comune located in the Metropolitan City of Milan within the Lombardy region of northern Italy. It is situated approximately 15 kilometers from the center of Milan.
The municipality is bounded by several other comuni, including Senago, Limbiate, Varedo, Cusano Milanino, Cormano, Nova Milanese, Bollate, Novate Milanese, and Cinisello Balsamo.