Košarkaški klub Crvena zvezda, usually referred to as KK Crvena zvezda or simply Crvena zvezda, currently named Crvena zvezda Meridianbet for sponsorship reasons, is a men's professional basketball club based in Belgrade, Serbia and the major part of the Red Star multi-sports club. The club is a founding member and shareholder of the Adriatic Basketball Association, and competes in the Serbian League (KLS), the ABA League, and the top-tier EuroLeague.

Sportsko društvo Crvena zvezda, commonly abbreviated as SD Crvena zvezda, is a multi-sport club from Belgrade, Serbia.