Football Club Internazionale Milano , most commonly referred to as simply Internazionale , or Inter , is an Italian professional football club based in Milan, Lombardy, founded in 1908. Inter are the only side in Italian football to have spent their entire history in the top tier (Serie A), making them the club with the most seasons in said top flight. Playing in black and blue striped shirts with black shorts, they have sixteen Serie A titles to their name; only their rivals Juventus and AC Milan have won more. Including the Coppa Italia and the Italian Super Cup, Inter have a total of 25 trophies won in Italy.

Outside of their homeland, the club have also had success in European and World tournaments; they won the European Cup in two successive finals in 1964 and 1965. They have also won the UEFA Cup three times and the World Club Championship twice. Additionally, Inter was one of founding members of the G-14, a group that formerly represented eighteen of the largest and most prestigious European football clubs.

Inter play their home games at the Stadio Giuseppe Meazza, also known as San Siro. The ground, which they share with rivals AC Milan, is the largest in Italian football, with a total capacity of 80,018