Aşağı Uzunoba (also, Ashagy Uzunoba and Uzun-oba-ashaga) is a village and municipality in the Babek Rayon of Nakhchivan, Azerbaijan. It is located in the right side of the Nakhchivan-Shahbuz highway, 18 km in the north from the district center, on the right bank of the Nakhchivanchay River. Its population is busy with grain growing, vegetable-growing and animal husbandry. There are secondary school, library, club and a medical center in the village. It has a population of 448.  The name of the village means "the Uzunoba village which is located in the below".