Quarto Cagnino (Italian pronunciation: [ˈkwarto kaɲˈɲiːno]; Milanese: Quart [ˈkwɑːrt]) is a district (quartiere) of Milan, Italy, part of the Zone 7 administrative division of the city. It borders the districts of Trenno (north), San Siro (east), Baggio (south), and Quinto Romano (west). Before being annexed to Milan, in 1869, it was an autonomous comune and, briefly, a part of Trenno (from 1861 to 1869).