Associazione Calcio Milan, commonly referred to as AC Milan or simply Milan, is an Italian professional football club based in Milan, Lombardy. Founded in 1899, the club competes in the Serie A, the top tier of Italian football, and has spent its entire history there with the exception of the 1980–81 and 1982–83 seasons.

Milan is a city in northern Italy, regional capital of Lombardy, and the second-most-populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city has 3.22 million residents. The urban area of Milan is the fourth largest in the EU with 5.27 million inhabitants. According to national sources, the population within the wider Milan metropolitan area is estimated between 4.9 million and 7.4 million, making it by far the largest metropolitan area in Italy and one of the largest in the EU. Milan is the economic capital of Italy, one of the economic capitals of Europe and a global financial centre.