Hammarby IF Fotbollforening, more commonly known as Hammarby Fotboll or Hammarby (Swedish pronunciation: [ˈhamːarˌbyː] or, especially locally, [-ˌbʏ]), is a Swedish football club from Stockholm founded in 1915.
The club is based at Tele2 Arena in Johanneshov but founded in the neighbouring Sodermalm district of Stockholm City Centre, an area the club considers its heartland.
Competing in Sweden's first tier, Allsvenskan, Hammarby are placed twelfth in the all-time Allsvenskan table, and has won the league once, in 2001.
The club's colours are green and white, which is reflected in its crest and kit. Between 1918 and 1978, however, the club played in black-and-yellow striped home shirts, which since often form the club's away colors.
It is known for its vociferous fans and for having the highest average attendance in the Nordic countries. Drawing inspiration from England, Hammarby fans introduced football chants to the Swedish terraces in 1970.
Hammarby is one of largest football clubs in Europe in terms of the number of active players of all ages – with some 3,000 players in its organisation.