Slavonian derby (Croatian: Slavonski derbi) is the name given to matches between the two most successful Croatianfootball clubs from the eastern Croatian region of Slavonia, the Osijek-based Osijek and Vinkovci-based Cibalia. As of September 2012[update], the Osijek-Vinkovci football match was played 50 times. The teams are supported by their fanbases called Kohorta and Ultrasi, at times infamously engaging in hooliganism at the time of the derby. As of 2013, since the Cibalia was relegated to Druga HNL the two opponents can to meet only in the Croatian Cup.
The following table shows the final position of the two clubs in the yearly Prva HNL, the Croatian top football league. Druga HNL is shown in the seasons when one of the clubs was relegated to that league.