The Yellow Wasps (Serbian: Жуте осе, Žute ose) were a Serbian paramilitary group which was active in the Bosnian War. It was headed by Vojin Vučković and Dušan Repić. The group was active in the Zvornik region. Vojin and his brother Duško were convicted in 1996 for killing of 17 civilians in Čelopek, a suburb of the town of Zvornik, during the ethnic cleansing of the Bosniak population of the Drina valley in 1992. Four other members of the group have also been charged with war crimes.
The Yellow Wasps paramilitary unit was allegedly formed on 12 April 1992 by Brana Grujić, president of the Zvornik Serbian Democratic Party (SDS), and a man known as Marko Pavlović, commander of the Zvornik Territorial Defense unit (TO), at a session of the Zvornik municipal assembly.
Consisting of about seventy men, the unit was commanded by Vojin Vučković, nicknamed "Žućo", born in 1962, an electrician from the town of Umka, near Belgrade, martial arts expert and former coach of the Serbian Interior Ministry judo team.
During the ICTY trial of Momčilo Krajišnik evidence was given that Marko Pavlović was an intelligence officer named Branislav "Branko" Popović, a major with the Zvornik Brigade of the Bosnian Serb Army who subsequently transferred to the Serbian army.
The "Yellow Wasps" paramilitary group was one of three paramilitary groups responsible for the "ethnic cleansing" and looting of Zvornik. They targeted not just Bosniaks, but anyone rich, including Serbs. They captured the Serbian mayor of Zvornik and tried to take control of the town using weapons from the territorial defence force. The Bosnian Serbs arrested them and sent them back to Serbia, but they soon returned.