Istok or Istog is a town and municipality located in the District of Peja of western Kosovo. According to the 2011 census, the city of Istok has 5,115 inhabitants, while the municipality has 39,289 inhabitants. Based on the population estimates from the Kosovo Agency of Statistics in 2016, the municipality has 39,982 inhabitants.

The name of the town comes from the version of the Serbian word istok (variant istek), meaning "well, water source" referring to the springs of the Istocka river, a tributary to the White Drin river. The name of the nearby village of Vrela, one of the largest settlements in the municipality, also means "springs", as does the newly proposed Albanian name of the town, Burimi.

The Ottoman defter (tax registry; census) of 1582 registered the Ipek nahiyah as having 235 villages, of which Suho Grlo (Suvo Grlo) was located within modern Istok municipality. Suvo Grlo had three bigger mahala (neighbourhoods). One of the neighbourhoods included Muslim converts. There were several Orthodox priests in the village.

The areas in and around Istok saw much resistance against the Yugoslav Partisans in 1945. In Lipa, near Istok, Bajram Grobi and his group of 9 others were surrounded by a partisan battalion - they sustained 3 losses in total, including Bajram himself. In August, Sali Kama and Bik Pazari resisted the partisans in Bjeshka, near Istok. In March, Berlac Rogani and 7 other men were surrounded at a mountain in Binak, near Istok, by a battalion of partisans numbering to 650 Serbs and Montenegrins; after 36 hours of fighting, Rogani and his men killed 28 partisans and wounded 12 others. During the fighting, the partisans utilised women and children as human shields, but nonetheless, Rogani and his men managed to break the encirclement and all 8 fighters managed to survive despite their injuries. On the 10th of September, in Liçeva and Lesnika (also near Istok), 32 Albanians battled against 1,300 well-armed Montenegrins for 6 hours in an event known as the Battle of the 32 Heroes. Only 4 of the Albanians managed to survive despite being wounded. The commanders of the Albanian side were Shaban Sadiku, Adem Shala and Alush Smajli, with Smajli being the only one to survive with grave injuries, and the Montenegrins were from the Boka Kotorska brigade.