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Hammarby Idrottsförening (or simply Hammarby IF, "Hammarby Sports Club") is a Swedishsports club located in Stockholm, with a number of member organizations active in a variety of different sports. It was founded in 1889 as Hammarby Roddförening ("Hammarby Rowing Association"), but by 1897 the club had diversified and was participating in a number of different sports, leading to the remaming to Hammarby IF. In 1999, the club was reorganized into a legal format in Swedish referred to as an alliansförening ("alliance association"), with each of the club's departments becoming separate legal entities cooperating under the "Hammarby IF" umbrella.