Seregno is a town and comune of the new Province of Monza and Brianza in the Italian region of Lombardy. Its population number is (December 2010) around 43.163 inhabitants, making it the second city of the Province after Monza. Seregno received the honorary title of city with a presidential decree on January 26, 1979.

Seregno is served by Seregno railway station.