Baggio (in Lombard: Bagg) is a district (quartiere) of Milan, Italy, part of the Zone 7 administrative division of the city. Before being annexed to Milan in 1923, it was an autonomous comune. The origin of name "Baggio" is disputed. Some scholars suggest that it might be from a Roman military tower called "Badalocum" (in Latin, "watch the place"); others have it derive from a toponymy "Badia Aggeris", possibly referring to an abbey, which over time was contracted into "Badagio" and later distorted into "Badaglo", then "Badaxio", and eventually "Baggio".