Košarkaški klub Partizan is a professional basketball club based in Belgrade, Serbia that competes in the Basketball League of Serbia, Adriatic League and Euroleague. The club was founded on 4 October 1945, as a basketball section of the Sports Association of the Central House of the Yugoslav Army. Košarkaški klub Partizan played 13 years in row Euroleague and the most significant season was season 2009-10 when they played in 2010 Euroleague Final Four.