AIK Fotboll (LSE: 0DI2), more commonly known simply as AIK (Swedish pronunciation: [²ɑː.i:.ˌkɔː]), an abbreviation for Allmänna Idrottsklubben (literally "The Public Athletics Club"), is a Swedish football club from Stockholm, based at the largest football stadium in the Nordic countries, Friends Arena, located in Solna, a municipality in Stockholm bordering the City Centre. Competing in Sweden's first tier, Allsvenskan, and affiliated with the Stockholm Football Association, the club was formed in 1891 in central Stockholm and the football department was formed in 1896.
League champions eleven times, winning their latest championship title in 2009, AIK are third in the all-time Allsvenskan table. The club holds the record for having played the most seasons in the Swedish top flight. In addition, AIK is the club that has finished top three in Allsvenskan the most times (nine) in this century.
AIK is the only side from Stockholm to have qualified for the group stage of a UEFA competition. The club reached the quarter-finals of the 1996–97 UEFA Cup Winners' Cup, qualified for the 1999–2000 UEFA Champions League group stage, and the 2012–13 UEFA Europa League group stage.