Qeysaraq (Persian: قيصرق, also Romanized as Qeyşaraq; also known as Qeyşarīyeh) is a village in Ardalan Rural District, Mehraban District, Sarab County, East Azerbaijan Province, Iran. At the 2006 census, its population was 2,273, in 539 families. It is in the Aji Chay valley.