Galatasaray Spor Kulübü, also known as Galatasaray AŞ or Gala in UEFA competitions, is a Turkish professional football club based on the European side of the city of Istanbul. It is the association football branch of the larger Galatasaray Sports Club of the same name, itself a part of the Galatasaray Community Cooperation Committee which includes Galatasaray High School where the football club was founded in October 1905 consisting entirely of student members. The team traditionally play in dark shades of red and yellow at home, with the shirts split down the middle between the two colours.

Galatasaray Spor Kulübü is a Turkish sports club based on the European side of the city of Istanbul including basketball, wheelchair basketball, volleyball, water polo, handball, athletics, swimming, rowing, sailing, judo, bridge, motorsport, equestrian, esports, and chess. Galatasaray S.K. is among the key members of the Galatasaray Community Cooperation Committee together with Galatasaray University and the prestigious Galatasaray High School.