Biassono is a comune in the Province of Monza and Brianza in the Italian region Lombardy, located about 20 kilometres northeast of Milan. Biassono borders the following municipalities: Lesmo, Arcore, Macherio, Lissone, Monza, Vedano al Lambro, Villasanta. Biassono is noteworthy because of its location situated to the northwest of the Autodromo Nazionale Monza, constructed in the park of Monza's Royal Villa.