| Aşağı Yayci | |
| Settlement Type: | Municipality |
| Pushpin Map: | Azerbaijan |
| Pushpin Mapsize: | 300 |
| Subdivision Type: | Country |
| Subdivision Name: |  Azerbaijan |
| Subdivision Type1: | Autonomous republic |
| Subdivision Name1: | Nakhchivan |
| Subdivision Type2: | District |
| Subdivision Name2: | Sharur |
| Population As Of: | 2005 |
| Population Total: | 1462 |
| Timezone: | AZT |
| Utc Offset: | +4 |
| Coordinates: | 39.6206°N 45.0803°W |
Aşağı Yaycı (also, Aşağı Yəyci, Ashagy Yaydzhi, and Ashaghy Yaydzhy) is a village and municipality in the Sharur District of Nakhchivan Autonomous Republic, Azerbaijan. It is located 16 km in the north-east from the district center, on the left bank of the Arpachay River, on the slope of the Daralayaz range. Its population is busy with farming and animal husbandry. There are secondary school, library, cultural house and hospital in the village. It has a population of 1,462. The settlement of Qız qalası (Maiden's Tower) of the Bronze and early Iron Ages is located in the south-west of the village, on the slope of the mountain range.[1]
It was registered in Yəyci version, too. The name of the village of Aşağı Yaycı (Lower Yaydzhy) is related with the ancient Turkic tribe of yayci which is origin of Turkic Oghuz tribes. Yet from ancient times, this tribe lived mainly, in the territory of Nakhchivan and present Armenia.[2]