Aza is a village and municipality in the Ordubad District of Nakhchivan, Azerbaijan. It is located on the left side of the Ordubad-Nakhchivan highway, 17 km southeast of the district centre, on the right bank of the Gilanchay River. Its population is busy with gardening, vegetable-growing, farming and animal husbandry. There are secondary school, club and a medical center in the village. It has a population of 442.