AIK Fotboll, more commonly known simply as AIK, an abbreviation for Allmänna Idrottsklubben, is a Swedish football club from Stockholm, competing in Sweden's first tier, Allsvenskan. AIK's home ground is Friends Arena, located in Solna, a municipality in Stockholm bordering the City Centre. The club was formed in 1891 and the football department was formed in 1896.
League champions eleven times, winning their latest championship title in 2009, and runners-up six times since 1999, 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, in this century AIK is the club that has finished top three in Allsvenskan the most times, and has an ongoing streak of having finished top three seven times in a row. AIK is consequently the Swedish club that has qualified for UEFA club competitions the most times during said period.
Affiliated with the Stockholm Football Association, AIK is the only side from Stockholm to have qualified for the group stage of a UEFA competition.