Galatasaray Spor Kulübü was established in Istanbul in October 1905. The football team is part of a larger sports club, as well as the Galatasaray Community Cooperation Committee. Galatasaray are the most successful team in Turkish football, the most popular team in the country and are one of only three teams to have competed in every Süper Lig season since its formation in 1959. Galatasaray have strong rivalries with Fenerbahçe and Beşiktaş. The rivalry with Fenerbahçe, known as the 'intercontinental derby', is considered one of the most fierce and important derbies in European football.
In 2000, after the defeating Arsenal in the final of the UEFA Cup, Galatasaray became the first Turkish team to lift a major European trophy. Galatasaray remained unbeaten throughout the entire competition and became the first team to ever win the UEFA Cup without losing a single game. A few months later, the club also defeated Champions League winners Real Madrid to win the UEFA Super Cup.
In addition to their success on the continental scene, Galatasaray have enjoyed tremendous success in domestic football. In total, they have won eighteen Süper Lig titles, fourteen Turkish Cups and twelve Turkish Super Cups. From the 1996–97 season through to the end of the 1999–2000 season, the team won four consecutive Süper Lig titles and became the first club to achieve this feat.
Over the years, the club has housed a number of world-class footballers. Some of the more notable examples include Eşfak Aykaç, Gündüz Kılıç, Metin Oktay, Cláudio Taffarel, Gheorghe Hagi and Hakan Şükür.
Galatasaray play their home matches at the Ali Sami Yen Spor Kompleksi, which is known as the Türk Telekom Arena for sponsorship reasons. The ground has a reputation for generating one of the most intimidating atmospheres in world football. In 2011, the supporters in the stadium set a Guinness World Record for 'loudest crowd roar'. The ground is able to hold a maximum of 52,652 spectators.