Borun Qeshlaq (Persian: برون قشلاق, also Romanized as Borūn Qeshlāq; also known as Bīrūn Qeshlāq) is a village in Qezel Gechilu Rural District, in the Central District of Mahneshan County, Zanjan Province, Iran. At the 2006 census, its population was 429, in 110 families.