During the 1999–2000 season, Red Star Belgrade participated in the 1999–2000 First League of FR Yugoslavia,[1] 1999–2000 FR Yugoslavia Cup[2] and 1999–2000 UEFA Cup.
Red Star won their seventh double in this season.
The 17-year-old Red Star fan Aleksandar Radović was killed by a signaling rocket fired from Partizan fans during the 113th Eternal derby.
On 7 August 1999, Red Star played a friendly match against Real Madrid.