The club was founded on 4 October 1945, as a basketball section of the Sports Association of the Central House of the Yugoslav Army.
KK Partizan was not allowed to defend the Euroleague title in the 1992–93 season, because of UN sanctions.
Partizan recorded its biggest win in European competitions on November 6, 1985 in Belgrade against DBV Charlottenburg (now ALBA Berlin).
The biggest defeat happened on November 15, 2013 in Moscow when CSKA won by 42 points, 88:46.
This is a list of all Partizan's matches in official FIBA Europe and Euroleague Basketball (company) European club competitions.